100um Spacer PMMA Microspheres PAPMMA100UM

100um Spacer PMMA Microspheres PAPMMA100UM

SHBC PAPMMA100UM are precision 100 μm PMMA microspheres developed for adhesive bond-line control, component spacing and uniform gap formation.

The spherical polymer particles can be evaluated in adhesives, optical components, sensors, electronic modules, functional coatings and precision 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 100 μm Spacing

The nominal particle diameter helps maintain an approximately 100 μm separation between bonded surfaces.

Uniform Spherical Morphology

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

Controlled Particle Size

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

PMMA Polymer Material

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

Smooth Particle Surface

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

Custom and Bulk Supply

SHBC supports laboratory samples, customized specifications, pilot orders and bulk production.

Main Applications

Adhesive Bond-Line Control

PAPMMA100UM can be mixed into compatible adhesives to help maintain an approximately 100 μm bond line.

Optical Component Assembly

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

Camera Module Assembly

Can help control adhesive thickness and component spacing in selected camera and imaging modules.

Sensor Manufacturing

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

Electronic Component Assembly

Can be evaluated for precision bonding of substrates, circuit components, modules and housings.

Semiconductor Packaging

Suitable for selected packaging systems requiring controlled spacing between substrates and components.

Functional Films and Coatings

Can be incorporated into compatible optical films, coatings and resin systems requiring uniform particles.

How 100um PMMA Spacer Microspheres Work

PAPMMA100UM 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 actual 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

PAPMMA100UM helps provide:

• Controlled 100 μm spacing

• More uniform bond-line thickness

• Stable support-point distribution

• Reduced local gap variation

• Improved component alignment

• Repeatable assembly performance

• Customized particle 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 spraying.

Surface Distribution

Apply the particles to a substrate using suitable precision distribution equipment.

Coating Formulation

Incorporate PAPMMA100UM into compatible optical, functional or protective coating systems.

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 final bond-line thickness

Controlled ultrasonication may be used when compatible with the formulation and equipment.

The dispensing nozzle and material path should be sufficiently larger than the particle diameter to reduce blockage risk.

Spacer Loading Considerations

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

Insufficient loading may cause 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 PAPMMA100UM

Consider the following factors:

• Target gap thickness

• Mean particle diameter

• Maximum particle diameter

• Particle size tolerance

• Particle size distribution

• Adhesive or carrier chemistry

• Dispensing method

• Assembly pressure

• Operating temperature

• Required bond strength

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

• Crosslinking level

• 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 PAPMMA100UM microspheres?

PAPMMA100UM are nominal 100 μm PMMA microspheres designed for precision gap and bond-line thickness control.

What are 100um PMMA spacer microspheres used for?

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

Can PAPMMA100UM create an exact 100 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 PAPMMA100UM be mixed into epoxy adhesives?

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

Why use PMMA instead of glass spacers?

PMMA provides a lower-density polymer option with reduced contact hardness and limited deformation under pressure.

How should the microspheres be dispersed?

Use gentle mechanical stirring or compatible ultrasonication while minimizing bubbles and aggregation.

Will the particles affect adhesive performance?

Particle loading and dispersion may affect viscosity, dispensing and bond strength. Compatibility testing is recommended.

Can SHBC customize PAPMMA100UM?

Yes. Particle diameter, size tolerance, crosslinking level, solid content, supply form 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 PAPMMA100UM 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: 100um Spacer PMMA Microspheres
Catalog Number: PAPMMA100UM
Material: Polymethyl Methacrylate, PMMA
Nominal Particle Size: 100 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.