30um Spacer PMMA Microspheres PAPMMA30UM

30um Spacer PMMA Microspheres PAPMMA30UM

SHBC PAPMMA30UM are precision 30 μm PMMA microspheres developed for gap control, uniform component spacing and adhesive bond-line thickness control.

The spherical polymer particles can be evaluated in adhesives, optical components, PDLC films, sensors, electronic modules and functional coatings.

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 30 μm Spacing

The nominal particle diameter helps maintain an approximately 30 μm separation between bonded surfaces and components.

Uniform Spherical Morphology

Regular spherical particles provide stable support points and help reduce local gap variation.

Controlled Particle Sizing

Consistent particle sizing supports repeatable bond-line and layer-thickness control.

PMMA Polymer Material

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

Formulation Flexibility

PAPMMA30UM can be evaluated in compatible adhesives, coatings, resins, solvents and polymer formulations.

Scalable Supply

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

Main Applications

Adhesive Bond-Line Control

PAPMMA30UM can be dispersed in compatible adhesives to help maintain an approximately 30 μm bond line.

Optical Component Assembly

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

PDLC and Smart Films

Can be evaluated in polymer-dispersed liquid crystal systems requiring controlled layer thickness.

Electronic Component Assembly

Suitable for precision bonding of substrates, circuit components, modules and housings.

Sensor Manufacturing

Can be used to control separation between substrates, electrodes and sensor components.

Display and Touch Modules

Suitable for selected display, touch-panel and optical module assemblies requiring a larger controlled gap.

Functional Films and Coatings

Can be incorporated into compatible films, coatings and resin systems for controlled spacing or surface structure.

How 30um PMMA Spacer Microspheres Work

PAPMMA30UM 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

• Spacer concentration

• Adhesive viscosity

• Dispersion uniformity

• Assembly pressure

• Substrate flatness

Product Benefits

PAPMMA30UM helps provide:

• Controlled 30 μm spacing

• More uniform bond-line thickness

• Stable support-point distribution

• Reduced local gap variation

• Improved component alignment

• Repeatable assembly performance

• Customized specifications

• Reliable batch supply

Application Methods

Adhesive Mixing

Mix the microspheres into compatible epoxy, acrylic, UV-curable adhesive, silicone or other polymer 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 PAPMMA30UM into compatible optical, functional or protective coating systems.

Dispersion and Processing Guide

Uniform particle dispersion is important for consistent gap control.

Recommended processing considerations include:

• Confirm material compatibility

• Premix before application

• Use controlled mechanical stirring

• Minimize air and bubble formation

• Avoid particle aggregation

• Evaluate particle settling

• Control assembly pressure

• Validate final gap thickness

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

Spacer Loading Considerations

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

Insufficient loading may produce uneven spacing. Excessive loading may affect adhesive flow, optical appearance or bond strength.

Evaluate:

• Particle dispersion

• Surface coverage

• Particle settling

• Dispensing performance

• 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 spacers.

They can be evaluated when the application requires:

• Lower particle density

• Polymer-system compatibility

• Slight particle deformation

• Reduced contact hardness

• Customized particle dimensions

• Dry powder or suspension supply

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

How to Select PAPMMA30UM

Consider the following factors:

• Target gap or bond-line thickness

• Mean particle diameter

• Maximum particle diameter

• Particle size tolerance

• Particle size distribution

• Adhesive or carrier chemistry

• Optical requirements

• Application method

• Assembly pressure

• Operating environment

Both mean diameter and maximum particle diameter should be evaluated for precision gap-control applications.

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, application, carrier system 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 microsphere 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 PAPMMA30UM microspheres?

PAPMMA30UM are nominal 30 μm PMMA microspheres developed for precision gap and bond-line thickness control.

What are 30um PMMA spacer microspheres used for?

They can be evaluated for adhesives, optical components, PDLC films, display modules, sensors and electronic assemblies.

Can PAPMMA30UM create an exact 30 μm gap?

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

Can PAPMMA30UM be mixed into adhesives?

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

Can PAPMMA30UM be used in optical assemblies?

Yes. They can be evaluated for controlling spacing between optical substrates, filters, films and components.

How should the particles be dispersed?

Use controlled stirring or compatible ultrasonication while minimizing bubbles and particle 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 the specifications?

Yes. Particle diameter, size tolerance, solid content, dispersion medium, 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 PAPMMA30UM samples, technical specifications, customized PMMA spacer microspheres and bulk pricing.

Please provide:

• Target application

• Required gap thickness

• Carrier or adhesive system

• Required quantity

• Preferred supply form

• Packaging requirements

• Estimated annual demand

Product: 30um Spacer PMMA Microspheres
Catalog Number: PAPMMA30UM
Material: Polymethyl Methacrylate, PMMA
Nominal Particle Size: 30 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.