200um Spacer PMMA Microspheres PAPMMA200UM

200um Spacer PMMA Microspheres PAPMMA200UM

SHBC PAPMMA200UM are precision 200 μm PMMA microspheres developed for adhesive bond-line control, component spacing and uniform gap formation.

The spherical polymer particles are suitable for adhesives, optical components, sensors, electronic modules and precision industrial assemblies.

Product Specifications

Batch-specific particle size distribution, solid content, supply form, packaging and storage conditions are available in the product specification and Certificate of Analysis.

Key Advantages

Controlled 200 μm Spacing

The nominal particle diameter helps maintain an approximately 200 μm separation between bonded surfaces.

Uniform Spherical Morphology

Regular spherical particles provide stable support points and help reduce local bond-line variation.

Controlled Particle Sizing

Consistent particle sizing supports repeatable gap and adhesive-thickness control.

PMMA Polymer Material

PMMA provides a lightweight polymer spacer option for adhesive, optical and electronic systems.

Smooth Particle Surface

The smooth morphology supports distribution in compatible adhesives, sealants, coatings and resins.

Custom and Bulk Supply

SHBC supports sample evaluation, customized specifications, pilot orders and bulk production.

Main Applications

Adhesive Bond-Line Control

PAPMMA200UM can be mixed into compatible adhesives or sealants to help maintain an approximately 200 μm bond line.

Optical Component Assembly

Suitable for spacing between glass substrates, lenses, filters, optical films and housings.

Camera and Imaging Modules

Can help control adhesive thickness and component separation in selected imaging assemblies.

Sensor Manufacturing

Suitable for controlling spacing between electrodes, substrates and sensor components.

Electronic Component Assembly

Can be evaluated for bonding circuit components, substrates, modules and enclosures.

Semiconductor Packaging

Suitable for selected packaging systems requiring controlled component separation.

Industrial Precision Assembly

Can be used in fixtures, housings and mechanical components requiring repeatable spacing.

How 200um PMMA Spacer Microspheres Work

PAPMMA200UM microspheres are dispersed in an adhesive, coating or compatible carrier.

During assembly, the particles form physical support points between two surfaces. Their nominal diameter helps limit excessive compression and maintain the required separation.

The final gap may also depend on:

• Mean particle diameter

• Maximum particle diameter

• Particle size distribution

• Particle loading

• Adhesive viscosity

• Dispersion uniformity

• Assembly pressure

• Substrate flatness

Product Benefits

PAPMMA200UM helps provide:

• Controlled 200 μm spacing

• More uniform bond-line thickness

• Stable support-point distribution

• Reduced local gap variation

• Improved component alignment

• Repeatable assembly performance

• Customized specifications

• Reliable industrial supply

Application Methods

Adhesive Mixing

Mix the microspheres into compatible epoxy, acrylic, UV-curable adhesive, silicone or sealant systems.

Wet Dispersion

Disperse the particles in a compatible solvent or liquid carrier before coating or application.

Surface Distribution

Apply the microspheres directly to the substrate using suitable precision distribution equipment.

Resin and Coating Formulation

Incorporate PAPMMA200UM into compatible resin, coating or composite systems requiring controlled spacing.

Dispersion and Processing Guide

Uniform dispersion is important for consistent gap control.

Recommended processing considerations include:

• Confirm material compatibility

• Premix before application

• Use gentle mechanical stirring

• Minimize bubbles and air introduction

• Avoid particle aggregation

• Evaluate particle settling

• Maintain consistent assembly pressure

• Validate the final bond-line thickness

The dispensing nozzle and material path should be sufficiently larger than 200 μm to reduce blockage risk.

Spacer Loading Considerations

The recommended loading depends on the bonding area, adhesive volume and required support-point density.

Insufficient loading may result in uneven spacing. Excessive loading may affect adhesive flow, dispensing performance or bond strength.

Evaluate:

• Particle dispersion

• Support-point density

• Particle settling

• Adhesive viscosity

• Dispensing stability

• Final gap thickness

• Bond strength

• Long-term compatibility

Process validation is recommended before production use.

PMMA vs. Inorganic Spacer Particles

PMMA microspheres provide a polymer-based alternative to rigid glass or silica spacer materials.

They can be considered when the application requires:

• Lower particle density

• Polymer-system compatibility

• Reduced contact hardness

• Limited deformation under pressure

• Customized particle dimensions

• Dry powder or suspension supply

Mechanical, thermal and chemical compatibility should be confirmed in the final application.

How to Select PAPMMA200UM

Consider the following factors:

• Target gap thickness

• Mean particle diameter

• Maximum particle diameter

• Particle size tolerance

• Particle size distribution

• Adhesive chemistry

• Adhesive viscosity

• Dispensing method

• Assembly pressure

• Operating environment

For strict bond-line control, both mean diameter and maximum particle diameter should be evaluated.

Custom PMMA Spacer Microspheres

SHBC can customize PMMA spacer microspheres according to project requirements.

Customization options may include:

• Custom particle diameter

• Particle size tolerance

• Particle size distribution

• Solid content

• Dispersion medium

• Surface modification

• Dry powder or suspension

• Custom packaging

• OEM and ODM supply

Please provide the target gap, adhesive system, application and required quantity when requesting customization.

Quality Control and Documents

Available product documents may include:

• Certificate of Analysis

• Technical Data Sheet

• Safety Data Sheet

• Particle size test report

• Particle size distribution data

• Microscopy images

• Batch inspection record

• Customized specification sheet

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. supplies polymer microspheres, silica microspheres, magnetic beads and functional particle materials.

SHBC provides:

• Precision microsphere manufacturing

• Stable batch-to-batch quality

• Multiple particle-size options

• Customized specifications

• Sample evaluation support

• Pilot-scale production

• Bulk manufacturing capability

• OEM and ODM services

Frequently Asked Questions

What are PAPMMA200UM microspheres?

PAPMMA200UM are nominal 200 μm PMMA microspheres designed for precision gap and bond-line thickness control.

What are 200um PMMA spacer microspheres used for?

They can be evaluated for adhesives, optical components, camera modules, sensors, electronic packaging and industrial assemblies.

Can PAPMMA200UM create an exact 200 μm gap?

The nominal particle diameter helps control the gap. Final thickness also depends on particle distribution, maximum diameter, loading, adhesive properties and assembly pressure.

Can PAPMMA200UM be mixed into epoxy adhesives?

Yes. They can be evaluated in compatible epoxy, acrylic, UV-curable adhesive, silicone and sealant systems.

Why use PMMA spacer particles?

PMMA provides a lightweight polymer spacer option with lower contact hardness than many rigid inorganic particles.

How should the particles be dispersed?

Use gentle mechanical stirring while minimizing bubbles, particle aggregation and settling.

Can the particles pass through dispensing equipment?

The nozzle and complete material path must be larger than the particle diameter. Equipment compatibility should be confirmed before use.

Can SHBC customize PAPMMA200UM?

Yes. Particle diameter, size tolerance, solid content, dispersion medium, surface properties and packaging can be customized.

Are samples and bulk quantities available?

Yes. SHBC supports laboratory samples, pilot orders and long-term bulk supply.

Request a Sample or Quotation

Contact SHBC for PAPMMA200UM samples, technical specifications, customized PMMA spacer microspheres and bulk pricing.

Please provide:

• Target application

• Required gap thickness

• Adhesive or carrier system

• Required quantity

• Preferred supply form

• Packaging requirements

• Estimated annual demand

Product: 200um Spacer PMMA Microspheres
Catalog Number: PAPMMA200UM
Material: Polymethyl Methacrylate, PMMA
Nominal Particle Size: 200 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.