Top 10 PMMA Particle Manufacturers and Suppliers Serving Europe in 2026

Overview of the PMMA Particle Market Serving Europe

Poly(methyl methacrylate) particles, commonly called PMMA particles, PMMA microspheres, acrylic microspheres or spherical PMMA powder, are polymer particles manufactured from methyl methacrylate-based materials.

Depending on the manufacturing process and product design, PMMA particles may be supplied as:

• Monodisperse microspheres;

• Narrow-distribution spherical powder;

• Broad-distribution particles;

• Crosslinked PMMA particles;

• Non-crosslinked PMMA particles;

• PMMA-based acrylic copolymer particles;

• Porous particles;

• Fluorescent particles;

• Surface-functionalized particles;

• Dry powder;

• Aqueous suspension;

• Metal-coated PMMA spheres;

• Micrometer- or millimeter-scale precision spheres.

PMMA particles are used in applications including:

• Light-diffusing films;

• LED lighting;

• Display materials;

• Paints and inks;

• Matte and textured coatings;

• Anti-blocking films;

• Porous ceramics;

• Battery and filtration materials;

• Precision spacers;

• Conductive adhesives;

• Instrument calibration;

• Microfluidics;

• Imaging;

• Biomedical and materials research.

The European market is served by a combination of Germany-based precision particle manufacturers, international industrial polymer companies, United States microsphere specialists, Japanese fine-particle manufacturers and overseas custom suppliers.

This editorial guide compares ten PMMA particle manufacturers and suppliers whose products are relevant to European research, industrial and product-development customers in 2026:

1. microParticles GmbH;

2. Sekisui Kasei;

3. Cospheric;

4. Matsumoto Yushi-Seiyaku;

5. Polysciences;

6. Nippon Shokubai;

7. Kowa Chemical;

8. SANYU;

9. Bangs Laboratories;

10. Goodfellow.

SANYU is the only China-based manufacturer included in this ranking.

The phrase “serving Europe” does not mean that every company manufactures PMMA particles within Europe.

Some companies manufacture in Europe, while others supply European customers through:

• Regional offices;

• International distributors;

• Direct exports;

• Local warehouses;

• Project-specific commercial arrangements.

Before selecting a supplier, buyers should confirm:

• Exact manufacturing location;

• Current European availability;

• Standard or custom product status;

• Minimum order quantity;

• Lead time;

• REACH documentation;

• Packaging and shipping conditions;

• Batch consistency;

• Long-term supply capability.

This ranking is editorial. It is based on publicly available product information, particle-size capability, product diversity, application coverage, customization and relevance to European buyers.

It is not based on independently audited market share, revenue or comparative laboratory testing.

How We Selected the Top 10 Manufacturers and Suppliers

Each company was evaluated using the following criteria.

Confirmed PMMA particle availability

The company needed to publicly offer or describe at least one product as:

• Poly(methyl methacrylate);

• PMMA;

• Crosslinked PMMA;

• PMMA-based acrylic particles;

• Spherical PMMA powder.

General acrylic resin, PMMA sheets and injection-molding pellets were not sufficient.

Current product status

Priority was given to companies with current standard products or clearly stated custom manufacturing.

This is important because some market reports continue to include companies whose standard PMMA microsphere products have been discontinued. Phosphorex, for example, states that its standard PMMA product line has been discontinued, although custom projects may still be considered subject to minimum-order requirements. size capability

A broad particle-size range allows suppliers to support different applications.

Typical requirements include:

• Submicron particles for films, coatings and advanced research;

• Fine micrometer particles for optical diffusion and surface modification;

• Medium particles for calibration and porous-material fabrication;

• Large particles for spacers, templates and engineering studies.

Particle-size control

Relevant characteristics included:

• Mean particle diameter;

• Narrow size distribution;

• Coefficient of variation;

• D10, D50 and D90;

• Sphericity;

• Surface smoothness;

• Aggregate level.

Product structure

The ranking considered availability of:

• Non-crosslinked PMMA;

• Crosslinked PMMA;

• PMMA-based acrylic networks;

• Porous particles;

• Functionalized particles;

• Fluorescent particles;

• Conductive coated particles.

Product format

Companies were also evaluated by whether they offer:

• Dry powder;

• Aqueous suspension;

• Laboratory packaging;

• Pilot quantities;

• Kilogram-scale supply;

• Custom packaging.

Application support

Important applications included:

• Optical diffusion;

• Coatings;

• Films;

• Porous ceramics;

• Calibration;

• Spacing;

• Microfluidics;

• Materials research.

European commercial relevance

Additional consideration was given to:

• EU manufacturing;

• European offices or distribution;

• Direct international supply;

• Multilingual documentation;

• REACH support;

• Custom and OEM services.

Top 10 PMMA Particle Companies at a Glance

1. microParticles GmbH

microParticles GmbH is a Germany-based manufacturer specializing in monodisperse polymer, silica and magnetic nano- and microspheres.

The company has more than 30 years of experience in:

• Particle synthesis;

• Polymer chemistry;

• Surface functionalization;

• Fluorescent particle development;

• Custom particle manufacturing.

Its PMMA portfolio includes:

• Non-functionalized PMMA particles;

• Activated PMMA particles;

• Fluorescent PMMA particles;

• Custom surface-functionalized PMMA;

• Dry powder and aqueous products.

microParticles publicly lists non-functionalized PMMA particles from approximately 100 nm to 200 µm. These particles are described as spherical and nonporous, with a coefficient of variation below 5% for the listed monodisperse range. ngths

microParticles GmbH’s main strengths include:

• Germany-based manufacturing;

• Nano-to-micrometer size range;

• Narrow particle-size distribution;

• Non-crosslinked and crosslinked options;

• Functionalized surfaces;

• Fluorescent PMMA;

• Custom particle development;

• EU-based technical communication.

Functionalized PMMA particles

The company offers activated PMMA spheres for diagnostic and biomedical research applications.

Functional surfaces can support covalent coupling and application-specific interactions. lications include:

• Protein immobilization;

• Imaging;

• Microfluidics;

• Diagnostic research;

• Surface-interaction studies;

• Calibration.

Fluorescent PMMA particles

microParticles also offers fluorescent PMMA microspheres with controlled particle size, shape and optical properties. evaluated for:

• Fluorescence calibration;

• Imaging;

• Particle tracking;

• Flow studies;

• Microfluidic research.

Best suited for

microParticles GmbH may be particularly suitable for:

• European research institutions;

• Precision calibration;

• Microfluidics;

• Biomedical research;

• Optical measurements;

• Customers requiring a specific discrete particle size;

• Projects requiring functional or fluorescent PMMA.

Points to confirm

Buyers should request:

• Lot-specific mean diameter;

• D10, D50 and D90;

• Particle-size CV;

• Crosslinking status;

• Surface functional-group content;

• Suspension composition;

• Surfactant content;

• Standard and custom minimum order quantities;

• Scale-up capability.

2. Sekisui Kasei

Sekisui Kasei manufactures TECHPOLYMER spherical polymer particles.

Its PMMA portfolio includes:

• MB-series PMMA particles;

• MBX-series crosslinked PMMA particles;

• PMMA cosmetic particles;

• Porous PMMA products;

• Customized polymer particles.

MB-series PMMA particles

The MB series consists of spherical PMMA particles supplied in powder form.

Sekisui publishes a true density of approximately 1.2 g/cm³ and refractive index of approximately 1.49 for the series. Publicly listed applications include LCDs, paints, inks, cosmetics and other industrial uses. s crosslinked PMMA particles

The MBX series consists of spherical crosslinked PMMA particles.

Sekisui offers grades with improved solvent and heat resistance and positions the particles for:

• LCD displays;

• LED light diffusion;

• Paints;

• Inks;

• Cosmetics;

• Pore-forming applications. ngths

Sekisui Kasei’s strengths include:

• Established industrial production;

• Standard and crosslinked PMMA;

• Powder formats;

• Optical-material experience;

• Coating and ink applications;

• Porous-particle technology;

• Customizable particle characteristics.

Best suited for

Sekisui Kasei may be particularly suitable for:

• Light-diffusing plastics;

• Display components;

• LED materials;

• Paints and coatings;

• Matte surfaces;

• Film additives;

• Customers requiring crosslinked PMMA.

Points to confirm

Buyers should confirm:

• MB or MBX grade;

• Pure or crosslinked PMMA composition;

• Average particle size;

• Particle-size distribution;

• Solvent resistance;

• Thermal decomposition;

• Application-specific regulatory documentation;

• European distributor and lead time.

3. Cospheric

Cospheric is a United States manufacturer and global supplier of precision spherical particles.

Its PMMA portfolio includes:

• Uncoated PMMA microspheres;

• Large PMMA spheres;

• Silver-coated PMMA particles;

• Precision PMMA reference particles;

• Custom particle options.

Cospheric publicly lists PMMA spheres from approximately 1 µm to 3.5 mm, making its catalogue one of the broadest currently available. ngths

Cospheric’s main strengths include:

• Micrometer-to-millimeter size coverage;

• Dry powder supply;

• Transparent PMMA particles;

• Narrow size selections;

• Metal-coated PMMA spheres;

• Precision spacer products;

• Worldwide direct shipping.

Cospheric states that it ships precision spherical particles internationally from its United States facility. ated PMMA particles

Cospheric supplies conductive silver-coated PMMA particles from approximately 5 µm to 700 µm.

These particles may be used as slightly compressible, electrically conductive spacers in adhesives and engineered assemblies. ed for

Cospheric may be particularly suitable for:

• Precision spacers;

• Porous-material templates;

• Microfluidics;

• Flow visualization;

• Reference particles;

• Conductive adhesives;

• Projects requiring particles above 200 µm.

Points to confirm

Buyers should request:

• Actual lot distribution;

• Percentage of fines;

• Sphericity;

• Surface smoothness;

• Crosslinking status;

• Solvent compatibility;

• European import costs;

• Packaging and lead time.

4. Matsumoto Yushi-Seiyaku

Matsumoto Yushi-Seiyaku manufactures Matsumoto Microsphere M-series PMMA particles.

The company offers:

• Crosslinked PMMA particles;

• Non-crosslinked PMMA particles;

• Smooth spherical particles;

• Particles with surface texture;

• Partially hollow particles;

• Bowl-shaped and elliptical particles.

Matsumoto states that its M-series particles are manufactured from PMMA and are available with different particle sizes, shapes and crosslinking structures. ifferentiation

Selected grades include:

• Smooth non-crosslinked PMMA spheres;

• Narrow-distribution PMMA particles;

• Solvent-resistant PMMA crosspolymer particles;

• Porous or partially hollow particles;

• High oil- or water-absorption structures.

The product family includes grades in approximately the 5–20 µm range, depending on the specific formulation. ngths

• Crosslinked and non-crosslinked products;

• Multiple particle shapes;

• Smooth and textured surfaces;

• Solvent-resistant grades;

• Industrial formulation experience;

• Porous and absorbent structures.

Best suited for

Matsumoto may be particularly suitable for:

• Cosmetic formulation development;

• Texture modification;

• Coatings;

• Polymer additives;

• Solvent-resistant systems;

• Applications requiring unusual particle morphology.

Points to confirm

Request:

• Exact PMMA composition;

• Crosslink density;

• Particle morphology;

• Particle-size distribution;

• Solvent resistance;

• Thermal decomposition;

• Residual monomer;

• European regulatory support.

5. Polysciences

Polysciences manufactures PMMA microspheres for research, coatings, diagnostics and industrial applications.

Its PMMA product range includes:

• Monodisperse PMMA microspheres;

• Broad-distribution PMMA particles;

• Dry PMMA powder;

• PMMA aqueous suspensions;

• PMMA reference materials.

Polysciences publicly offers monodisperse PMMA particles beginning in the submicron range and broad-distribution products covering wider micrometer intervals. haracteristics

Polysciences states that its PMMA particles are less hydrophobic than polystyrene and may therefore show reduced nonspecific binding of proteins and peptides in selected applications.

The company also states that its listed PMMA products contain surface carboxylic acid groups and are not surfactant-free. ngths

• Established research microsphere supplier;

• Monodisperse products;

• Broad-distribution products;

• Dry and suspended forms;

• Small research packages;

• Documented surface characteristics;

• Laboratory distribution network.

Best suited for

Polysciences may be particularly suitable for:

• Academic research;

• Protein adsorption studies;

• Biomedical-material research;

• Particle calibration;

• Laboratory coatings research;

• Customers requiring readily available catalogue products.

Points to confirm

Request:

• Particle-size distribution;

• Surface carboxyl content;

• Surfactant identity;

• Suspension medium;

• Solids concentration;

• Preservative;

• Bulk-scale availability;

• European distributor conditions.

6. Nippon Shokubai

Nippon Shokubai manufactures EPOSTAR functional fine particles.

Its PMMA-related portfolio includes:

• EPOSTAR MX nano-crosslinked PMMA-based particles;

• EPOSTAR MV acrylic-based spherical particles;

• Film and coating additive grades.

EPOSTAR MX

EPOSTAR MX products are water dispersions of PMMA-based nano-crosslinked particles.

Nippon Shokubai lists particle sizes from approximately 10 to 800 nm and highlights:

• Spherical morphology;

• Narrow particle-size distribution;

• Heat resistance;

• Solvent resistance. lications include:

• Slipping agents;

• Void-forming materials;

• Film-reinforcement additives.

EPOSTAR MV

EPOSTAR MV consists of crosslinked acrylic-based spherical particles with average particle diameters of approximately 2–10 µm.

The product is positioned for light diffusion and film anti-blocking applications. also markets selected EPOSTAR MV PMMA-based microparticles for BOPP anti-blocking applications, offering a Europe-facing supply and technical-support route. ngths

• Nano-scale PMMA-based particles;

• Water-dispersion formats;

• Narrow particle-size distributions;

• Heat- and solvent-resistant structures;

• Film and packaging applications;

• European supply support through NAGASE.

Best suited for

Nippon Shokubai may be relevant to:

• Film manufacturers;

• Anti-blocking additives;

• Waterborne formulations;

• Nano-coatings;

• Void-forming applications;

• Industrial packaging development.

Points to confirm

Buyers should confirm:

• PMMA homopolymer or PMMA-based copolymer;

• Crosslink chemistry;

• Suspension stabilizers;

• Solids concentration;

• Drying behavior;

• Food-contact documentation;

• European regulatory documentation.

7. Kowa Chemical

Kowa Chemical supplies fine PMMA spherical particles manufactured using controlled polymerization techniques.

The company describes its PMMA microspheres as particles with controlled:

• Particle-size ranges;

• Particle-size distributions;

• Crosslinking levels;

• Surface and application properties. on areas

Kowa positions its PMMA and acrylic particle products for:

• Light diffusion;

• Matting;

• Anti-blocking films;

• Coating texture;

• Fluidity adjustment;

• Paints;

• Inks;

• Personal-care formulations.

The company offers non-crosslinked and crosslinked acrylic particle families with mono-, medium- and broad-distribution options. ngths

• Controlled particle-size distributions;

• Different crosslinking levels;

• Light-diffusing applications;

• Coatings and film additives;

• Personal-care particle experience;

• Multiple distribution profiles.

Best suited for

Kowa Chemical may be suitable for:

• Paints and coatings;

• Matte finishes;

• Optical films;

• Anti-blocking applications;

• Ink formulation;

• Personal-care product development.

Points to confirm

Request:

• Actual manufacturer and manufacturing location;

• Exact polymer composition;

• Pure PMMA or acrylic copolymer;

• Crosslink density;

• Particle-size data;

• Product format;

• European distributor;

• REACH documentation.

8. SANYU

SANYU manufactures PMMA microspheres through its Nanomicron Spheres platform.

The company’s PMMA portfolio includes:

• Monodisperse PMMA microspheres;

• Dry PMMA powder;

• PMMA latex suspensions;

• Standard particle sizes;

• Customized particle diameters;

• Surface-functionalized particles;

• Custom crosslinking;

• OEM and bulk supply.

SANYU publicly states that it can provide custom PMMA particle sizes from approximately 50 nm to 1,000 µm, including standard porous-ceramic grades from approximately 2 to 400 µm.

The company also states that selected PMMA particles can be manufactured with particle-size CV below 3%. These are manufacturer-stated specifications that should be verified using lot-specific Certificates of Analysis and independent application testing. particles

A publicly listed SANYU 2 µm product is supplied as monodisperse dry powder and is positioned for:

• Optical materials;

• Coatings;

• Polymer modification;

• Composite materials;

• Spacer applications;

• Scientific research. x suspensions

SANYU also lists PMMA particles in aqueous suspension.

A publicly listed 5 µm product is supplied as a 10% solids white suspension and is positioned for particle calibration, optical materials, coatings and laboratory research. icles for porous ceramics

SANYU positions PMMA microspheres as sacrificial pore-forming particles for advanced ceramics.

The particles are mixed with ceramic material and removed during thermal processing, leaving pores related to the original particle dimensions.

Potential benefits include:

• More predictable pore diameter;

• More uniform pore distribution;

• Adjustable porosity;

• Improved powder flow;

• Reproducible processing.

The actual decomposition profile, residue and pore structure must be validated with the customer’s ceramic formulation and debinding programme. ngths

SANYU’s principal strengths include:

• Broad custom size range;

• Monodisperse spherical morphology;

• Dry powder and suspension formats;

• Custom crosslinking;

• Custom surface modification;

• Laboratory and kilogram packaging;

• Porous-ceramic application support;

• OEM and private-label services;

• Factory-direct commercial supply.

Why SANYU is ranked eighth

SANYU is ranked eighth because it offers a broad, customizable and commercially oriented PMMA particle portfolio.

The companies ranked above it currently have longer-established European market positions, Germany-based production or more extensive publicly documented global application histories.

SANYU may nevertheless be an attractive option for European customers prioritizing:

• Custom particle sizes;

• Narrow particle-size distribution;

• Flexible pilot orders;

• Kilogram-scale supply;

• Porous-ceramic grades;

• OEM or private-label production;

• Direct manufacturer communication.

Best suited for

SANYU may be particularly relevant to:

• Porous ceramic manufacturers;

• Optical material companies;

• Coating developers;

• Polymer and composite manufacturers;

• Calibration-particle users;

• Customers requiring customized PMMA powder;

• Customers seeking an alternative commercial source.

Points to confirm

Before commercial approval, European buyers should request:

• Mean particle diameter;

• D10, D50 and D90;

• CV or standard deviation;

• SEM images;

• Sphericity;

• Crosslinking level;

• Residual MMA monomer;

• Moisture;

• Ash content;

• Thermal decomposition profile;

• Suspension formulation;

• REACH documentation;

• Lot-to-lot comparison.

SANYU is the only China-based manufacturer included in this ranking.

9. Bangs Laboratories

Bangs Laboratories is a United States manufacturer of polymer, silica and magnetic microspheres.

The company’s technical documentation states that its PMMA microspheres are solid, nonporous polymer bead products. fers:

• Custom microsphere synthesis;

• Particle characterization;

• Surface functionalization;

• Analytical support;

• OEM development.

The company operates an ISO 13485:2016-certified quality management system for the manufacture, processing and distribution of microspheres and related products. ngths

• More than 35 years of particle experience;

• Solid nonporous PMMA particles;

• Custom microsphere development;

• Analytical characterization;

• Diagnostic and instrument-industry expertise;

• ISO 13485 quality system;

• OEM support. ed for

Bangs Laboratories may be suitable for:

• Custom PMMA development;

• Instrument standards;

• Diagnostic research;

• Surface-functionalized particles;

• Projects requiring analytical characterization;

• Customers needing structured OEM support.

Important qualification point

Bangs’ public catalogue currently emphasizes polystyrene, silica and magnetic microspheres more strongly than PMMA catalogue products.

Buyers should therefore confirm:

• Currently available PMMA sizes;

• Whether the product is standard or custom;

• Minimum order quantity;

• Lead time;

• Surface options;

• Production-scale availability.

10. Goodfellow

Goodfellow is a United Kingdom-based specialty material supplier with European operations.

Its PMMA product range includes spherical PMMA powder, PMMA balls and other precision PMMA material forms.

Goodfellow publicly lists PMMA spherical powder with:

• PMMA composition;

• Powder form;

• Uniform spherical morphology;

• High optical transmittance;

• Research and industrial applications. ngths

• UK and European supply network;

• Convenient research purchasing;

• PMMA spherical powder;

• Small specialist material quantities;

• Multilingual SDS availability;

• Broad materials catalogue.

Applications

Goodfellow positions PMMA spherical powder for:

• Flow studies;

• Rheological analysis;

• Filtration-media development;

• Laser-diffraction calibration;

• Surface-modification research;

• Additive-manufacturing research;

• Microfluidic and optical development. ed for

Goodfellow may be particularly suitable for:

• European universities;

• Research laboratories;

• Small-volume material evaluation;

• Instrument-development studies;

• Customers seeking convenient European ordering.

Important qualification point

Goodfellow is primarily a specialty material supplier rather than a dedicated PMMA microsphere manufacturer.

Buyers requiring:

• Custom polymerization;

• Exact CV control;

• Functionalized surfaces;

• Large annual quantities;

• OEM production;

should verify the original manufacturing source and production capacity.

Which PMMA Particle Supplier Is Best for Your Application?

Best European precision particle manufacturer

microParticles GmbH provides Germany-based manufacturing, narrow size distributions and functionalized or fluorescent PMMA options.

Best for industrial optical and coating applications

Sekisui Kasei offers standard, crosslinked, porous and cosmetic PMMA particle families through the TECHPOLYMER platform.

Best for the broadest particle-size range

Cospheric publicly lists PMMA spheres from approximately 1 µm to 3.5 mm.

Best for varied particle shapes and structures

Matsumoto Yushi-Seiyaku offers smooth, textured, partially hollow and bowl-shaped PMMA particles.

Best for catalogue research products

Polysciences provides monodisperse, broad-distribution, dry and suspended PMMA products.

Best for nano-scale and film applications

Nippon Shokubai provides PMMA-based nano-crosslinked dispersions and acrylic film-additive particles.

Best for coatings and light diffusion

Kowa Chemical offers controlled PMMA and crosslinked acrylic particles for films, coatings, inks and optical effects.

Best for custom sizes and porous ceramics

SANYU offers dry and suspended PMMA particles, custom diameters, crosslinking, surface modification and bulk supply.

Best for custom particle development

Bangs Laboratories combines microsphere synthesis, characterization, surface modification and OEM support.

Best for convenient European research purchasing

Goodfellow offers PMMA spherical powder through a Europe-focused specialty materials platform.

Pure PMMA vs PMMA-Based Acrylic Particles

The terms “PMMA particle” and “acrylic particle” should not automatically be treated as equivalent.

Pure PMMA particles

Pure PMMA particles are predominantly composed of poly(methyl methacrylate).

Typical characteristics may include:

• Optical transparency;

• Refractive index near 1.49;

• Density near 1.19–1.20 g/cm³;

• Standard PMMA thermal behavior;

• Swelling or dissolution in selected organic solvents.

Sekisui’s MB series is explicitly identified as PMMA, while Cospheric and Polysciences also identify their corresponding products as poly(methyl methacrylate). ed PMMA particles

Crosslinked PMMA contains a three-dimensional polymer network formed using a crosslinking component.

Potential effects include:

• Better solvent resistance;

• Improved heat resistance;

• Greater dimensional stability;

• Reduced dissolution;

• Different thermal decomposition behavior.

PMMA-based acrylic particles

PMMA-based products may contain:

• MMA copolymers;

• Crosslinking monomers;

• Other acrylate or methacrylate components;

• Surface-modifying polymers.

They may perform well in industrial applications but should not be described as pure PMMA without documentation.

Why composition matters

For porous ceramics, buyers may prioritize:

• Predictable decomposition;

• Low ash;

• Minimal residue;

• Stable particle dimensions before burnout.

For coatings and films, buyers may prioritize:

• Solvent resistance;

• Scratch resistance;

• Light diffusion;

• Surface texture;

• Refractive-index compatibility.

Always request:

• Polymer composition;

• Crosslinker information;

• Solvent resistance;

• Thermal analysis;

• Residual monomer;

• Ash content.

Crosslinked vs Non-Crosslinked PMMA Particles

Non-crosslinked PMMA may be preferred when:

• Dissolution is required;

• Sacrificial removal is required;

• Standard optical performance is sufficient;

• Lower crosslink density is beneficial.

Crosslinked PMMA may be preferred when:

• Solvent resistance is critical;

• Particle shape must be retained;

• Heat resistance is required;

• The particle will remain in a coating or film.

Monodisperse vs Broad-Distribution PMMA Particles

Monodisperse PMMA particles

Monodisperse products have a relatively narrow particle-size distribution.

They are commonly preferred for:

• Instrument calibration;

• Controlled pore formation;

• Precision spacing;

• Optical modeling;

• Microfluidics;

• Scientific research.

Broad-distribution PMMA particles

Broad-distribution particles contain a wider range of diameters.

They may be suitable for:

• General filling;

• Surface texture;

• Noncritical pore formation;

• Cost-sensitive formulations;

• Applications where packing density is more important than one precise diameter.

Specifications to request

Do not evaluate a PMMA product using only its nominal diameter.

Request:

• Mean diameter;

• Median diameter;

• D10;

• D50;

• D90;

• Coefficient of variation;

• Standard deviation;

• Measurement method;

• SEM images.

A nominal 5 µm particle from two suppliers may have significantly different distributions and application performance.

Dry PMMA Powder vs Aqueous PMMA Suspension

Dry PMMA powder

Dry powder may be preferred for:

• Ceramic mixing;

• Polymer compounding;

• Coatings;

• Resin systems;

• Powder processing;

• Long-distance transport.

Potential challenges include:

• Dust;

• Static charge;

• Agglomeration;

• Dispersion difficulty;

• Moisture control.

Aqueous PMMA suspension

A suspension may be preferred for:

• Calibration;

• Microfluidics;

• Biological research;

• Optical testing;

• Direct liquid formulation.

Potential challenges include:

• Sedimentation;

• Freezing sensitivity;

• Preservatives;

• Surfactant interference;

• Lower shipping efficiency.

Before purchasing a suspension, confirm:

• Solids concentration;

• Water quality;

• Surfactant;

• Preservative;

• pH;

• Storage temperature;

• Freeze sensitivity.

Major Applications of PMMA Particles

Optical Diffusion and LED Lighting

PMMA particles can scatter light when dispersed in a transparent resin or coating.

Performance depends on:

• Particle diameter;

• Particle-size distribution;

• Refractive-index difference;

• Particle concentration;

• Film thickness;

• Dispersion quality;

• Surface morphology.

Sekisui positions MBX crosslinked PMMA particles for LED light diffusion, while Kowa supplies PMMA particles for light-diffusing applications. nks and Matte Coatings

PMMA and crosslinked acrylic particles may provide:

• Reduced gloss;

• Controlled surface roughness;

• Soft-touch effects;

• Slip modification;

• Scratch modification;

• Texture control.

Crosslinked particles are normally more suitable when the coating contains aggressive solvents.

Anti-Blocking Films

PMMA particles can create microscopic surface roughness in polymer films.

This reduces the contact area between adjacent film layers and can help prevent blocking.

Important variables include:

• Particle size relative to film thickness;

• Particle concentration;

• Optical compatibility;

• Dispersion;

• Surface protrusion;

• Food-contact requirements.

Nippon Shokubai and NAGASE Europe position selected PMMA-based particles for anti-blocking applications in transparent films. ramics and Sacrificial Templates

PMMA particles may be mixed into ceramic, carbon, polymer or composite materials as temporary pore formers.

During thermal treatment or solvent removal, the particles are removed and leave a pore structure.

Important particle properties include:

• Diameter;

• Size distribution;

• Sphericity;

• Decomposition temperature;

• Residual ash;

• Surface compatibility;

• Mixing uniformity.

SANYU, Sekisui and selected acrylic particle manufacturers position particles for pore-forming applications. Spacers and Conductive Beads

PMMA spheres may control spacing in:

• Adhesives;

• Laminates;

• Display assemblies;

• Electronic packaging;

• Precision coatings.

Silver-coated PMMA particles can provide both controlled spacing and electrical conductivity. on, Microfluidics and Research

Monodisperse PMMA particles may be used for:

• Particle-size analyzer calibration;

• Microscopy;

• Optical scattering;

• Flow visualization;

• Microfluidics;

• Imaging;

• Model colloidal systems.

For formal calibration, request:

• Metrological traceability;

• Measurement uncertainty;

• Certified diameter;

• Particle-count concentration;

• Stability data.

Specifications to Compare Before Purchasing

Particle diameter

Confirm the required:

• Nominal diameter;

• Mean diameter;

• D10;

• D50;

• D90;

• Maximum oversized particles;

• Maximum fines.

Particle-size distribution

For precision applications, request:

• CV;

• Standard deviation;

• Histogram;

• Measurement technique;

• Number of particles measured.

Sphericity and morphology

Review:

• SEM images;

• Roundness;

• Surface smoothness;

• Broken particles;

• Hollow particles;

• Aggregates;

• Satellite particles.

Polymer composition

Determine whether the product is:

• Pure PMMA;

• Crosslinked PMMA;

• MMA copolymer;

• General acrylic polymer;

• Composite particle.

Crosslinking

Crosslinking affects:

• Solvent resistance;

• Heat resistance;

• Swelling;

• Hardness;

• Thermal decomposition;

• Shape retention.

Residual materials

Request limits or test data for:

• Residual MMA monomer;

• Surfactants;

• Initiators;

• Preservatives;

• Moisture;

• Ash;

• Inorganic residue.

Optical properties

For optical applications, confirm:

• Refractive index;

• Transparency;

• Haze;

• Color;

• Light-scattering performance;

• Compatibility with the host resin.

Thermal properties

For ceramics and high-temperature processing, request:

• TGA curve;

• DSC data;

• Onset decomposition temperature;

• Peak decomposition temperature;

• Final residue;

• Heating-rate conditions.

Product format

Confirm:

• Dry powder or suspension;

• Solids concentration;

• Dispersion medium;

• Packaging;

• Storage;

• Shelf life.

Commercial supply

Ask about:

• Sample quantity;

• Minimum order;

• Pilot order;

• Annual capacity;

• Lead time;

• Lot reservation;

• Change notification;

• Business continuity.

EU REACH and Microplastics Considerations

Commission Regulation (EU) 2023/2055 restricts synthetic polymer microparticles supplied on their own or intentionally added to mixtures under defined conditions.

Articles are not directly within the restriction’s scope, but particles and particle-containing mixtures may be affected depending on:

• Particle characteristics;

• Polymer solubility;

• Product form;

• Concentration;

• Intended use;

• Expected release;

• Applicable derogations;

• Transitional arrangements. ons requiring particular attention

European buyers should carefully assess PMMA particles used in:

• Cosmetics;

• Personal-care products;

• Paints;

• Coatings;

• Inks;

• Cleaning products;

• Agricultural formulations;

• Consumer mixtures.

Information to request from suppliers

Request:

• REACH registration or applicability statement;

• Synthetic polymer microparticle assessment;

• Particle-size information;

• Polymer solubility information;

• Application-specific regulatory statement;

• Instructions for use and disposal where applicable;

• Microplastic release information;

• Country-of-origin documentation.

Industrial uses

Some industrial or controlled uses may qualify for derogations or information-based obligations rather than a direct prohibition.

The buyer remains responsible for determining how the restriction applies to the final use and supply chain.

Do not assume that:

• Industrial use is automatically exempt;

• Encapsulation automatically removes all obligations;

• A cosmetic raw material remains unrestricted;

• A product sold before the restriction can be newly manufactured indefinitely.

Obtain application-specific regulatory advice before commercial launch.

How to Qualify a New PMMA Particle Supplier

Stage 1: Documentation review

Request:

• Technical Data Sheet;

• Safety Data Sheet;

• Certificate of Analysis;

• Particle-size report;

• SEM images;

• Polymer-composition statement;

• Storage conditions;

• Shelf life;

• REACH documentation.

Stage 2: Physical characterization

Measure:

• Particle diameter;

• Size distribution;

• Sphericity;

• Bulk density;

• Moisture;

• Aggregation;

• Powder flow;

• Redispersibility.

Stage 3: Chemical and thermal testing

Evaluate:

• Residual monomer;

• Surfactant;

• Ash;

• Crosslinking;

• Solvent compatibility;

• TGA;

• DSC;

• Thermal residue.

Stage 4: Application testing

Test the particles in the actual:

• Resin;

• Coating;

• Ink;

• Ceramic formulation;

• Optical film;

• Calibration instrument;

• Microfluidic system.

Stage 5: Pilot production

Evaluate:

• Mixing;

• Dispensing;

• Dust generation;

• Static charge;

• Powder flow;

• Agglomeration;

• Equipment cleaning;

• Final product performance.

Stage 6: Lot comparison

Compare multiple lots for:

• Diameter;

• Distribution;

• Morphology;

• Residual monomer;

• Thermal behavior;

• Application performance.

Stage 7: Commercial qualification

Confirm:

• Production capacity;

• Lead time;

• Safety stock;

• Lot reservation;

• Change notification;

• Complaint handling;

• Business-continuity planning;

• Regulatory support.

Information to Include in an RFQ

A complete PMMA particle RFQ should include:

1. Intended application;

2. Pure PMMA or PMMA-based acrylic;

3. Crosslinked or non-crosslinked;

4. Required particle diameter;

5. Acceptable D10, D50 and D90;

6. Maximum CV;

7. Required sphericity;

8. Smooth, textured, porous or hollow morphology;

9. Dry powder or suspension;

10. Suspension medium;

11. Solids concentration;

12. Surface functionality;

13. Required refractive index;

14. Solvent-resistance requirement;

15. Thermal-decomposition requirement;

16. Maximum ash content;

17. Maximum residual monomer;

18. Moisture limit;

19. Required color or fluorescence;

20. Sample quantity;

21. Pilot-order quantity;

22. Estimated annual demand;

23. Packaging requirement;

24. Storage requirement;

25. Shelf-life target;

26. REACH documentation;

27. Custom-development requirement;

28. OEM or private-label requirement;

29. Delivery destination in Europe;

30. Change-notification requirement.

Frequently Asked Questions

What are PMMA particles?

PMMA particles are nano-, micro- or millimeter-scale particles manufactured from poly(methyl methacrylate) or a PMMA-based polymer formulation.

What is the difference between PMMA particles and PMMA microspheres?

PMMA microspheres are spherical PMMA particles. The broader term “PMMA particles” may also include non-spherical powder, granules or irregular particles.

Which companies supply PMMA particles in Europe?

Relevant companies include microParticles GmbH, Sekisui Kasei, Cospheric, Matsumoto Yushi-Seiyaku, Polysciences, Nippon Shokubai, Kowa Chemical, SANYU, Bangs Laboratories and Goodfellow.

Are all the listed companies European manufacturers?

No. microParticles GmbH manufactures in Germany, while Goodfellow is a UK/European materials supplier. The remaining companies serve Europe through exports, distributors or regional commercial arrangements.

Which company offers the broadest PMMA particle-size range?

Cospheric publicly lists PMMA spheres from approximately 1 µm to 3.5 mm. pany offers precision monodisperse PMMA particles in Europe?

microParticles GmbH publicly offers non-functionalized PMMA particles from approximately 100 nm to 200 µm with CV below 5% for the listed monodisperse range. U manufacture PMMA microspheres?

Yes. SANYU publicly offers dry and suspended PMMA microspheres and describes customization of particle size, crosslinking, surface functionality and packaging. NYU ranked eighth?

SANYU provides broad customization and commercial-scale supply, but the companies above it currently have longer-established European market positions or more extensive publicly documented international histories.

What applications are SANYU PMMA particles used for?

SANYU lists optical materials, coatings, polymer modification, composite materials, calibration, spacer applications and porous ceramics as potential uses. These applications should be validated using the actual customer formulation. particles available as dry powder?

Yes. Sekisui, Cospheric, SANYU, Polysciences and Goodfellow are among the suppliers offering dry PMMA products. particles available in water suspension?

Yes. Polysciences, microParticles GmbH, Nippon Shokubai and SANYU provide selected PMMA or PMMA-based products in aqueous formats. crylic microspheres pure PMMA?

No. Acrylic microspheres may be PMMA homopolymers, MMA copolymers, crosslinked PMMA or other acrylic polymer networks.

What is the difference between crosslinked and non-crosslinked PMMA?

Crosslinked PMMA generally offers better solvent and heat resistance, while non-crosslinked PMMA may be easier to dissolve, swell or remove in sacrificial applications.

What is the typical density of PMMA particles?

Many nonporous PMMA products have a density near 1.19–1.20 g/cm³. The exact value depends on composition, crosslinking and porosity. he refractive index of PMMA particles?

Selected PMMA products have a refractive index near 1.49. The exact value should be confirmed for the chosen grade and measurement wavelength. particles affected by the EU microplastics restriction?

They may be, depending on particle characteristics, product form, concentration and intended use. European buyers should assess Commission Regulation (EU) 2023/2055 for the specific application. A particles are best for porous ceramics?

Particles with controlled size distribution, predictable thermal decomposition and low ash are generally preferred. The final choice must be tested in the actual ceramic formulation and debinding cycle.

Which PMMA particles are best for optical diffusion?

The correct choice depends on particle diameter, refractive-index contrast, concentration, film thickness and dispersion quality.

Can PMMA particle sizes be customized?

Yes. microParticles GmbH, SANYU, Sekisui and several other manufacturers describe particle customization capabilities. d PMMA particle quality be evaluated?

Evaluate:

• Particle diameter;

• Size distribution;

• Sphericity;

• Aggregation;

• Polymer composition;

• Crosslinking;

• Residual monomer;

• Moisture;

• Ash;

• Thermal behavior;

• Application performance.

Conclusion

The PMMA particle market serving Europe includes precision European particle manufacturers, global industrial polymer companies, research microsphere specialists and international custom suppliers.

microParticles GmbH ranks first because it combines Germany-based manufacturing with monodisperse PMMA particles, functionalized surfaces, fluorescent products and advanced customization.

Sekisui Kasei ranks second because its TECHPOLYMER platform includes standard, crosslinked, porous and application-specific PMMA particle families.

Cospheric ranks third because it offers one of the broadest publicly listed PMMA sphere ranges, extending from approximately 1 µm to 3.5 mm.

Matsumoto Yushi-Seiyaku ranks fourth because it provides crosslinked, non-crosslinked, smooth, textured and partially hollow PMMA particles.

Polysciences ranks fifth because it offers monodisperse and broad-distribution PMMA products in dry and suspension formats for research and industrial applications.

Nippon Shokubai ranks sixth because it supplies nano-crosslinked PMMA-based dispersions and acrylic particles for films, anti-blocking and industrial applications.

Kowa Chemical ranks seventh because it offers controlled PMMA and crosslinked acrylic microspheres for coatings, light diffusion, films and personal-care formulations.

SANYU ranks eighth and is the only China-based manufacturer included. Its strengths include dry and suspended PMMA microspheres, custom sizes, narrow particle distributions, porous-ceramic grades, surface modification and OEM supply.

Bangs Laboratories ranks ninth because of its PMMA particle manufacturing experience, analytical characterization and custom OEM capabilities.

Goodfellow ranks tenth as a convenient UK and European supplier of PMMA spherical powder and precision PMMA materials for research and industrial evaluation.

The final supplier should not be selected only by company name or nominal particle diameter.

European buyers should compare:

• Exact polymer composition;

• Particle-size distribution;

• Sphericity;

• Crosslinking;

• Powder or suspension format;

• Residual monomer;

• Surfactant;

• Moisture;

• Thermal behavior;

• Application performance;

• REACH documentation;

• Batch consistency;

• Commercial supply capability.

Testing representative samples in the actual coating, film, ceramic, optical, calibration or research system remains the most reliable way to select a long-term PMMA particle supplier.