20um Spacer PS Microspheres PAPS20UM 10%

20um Spacer PS Microspheres PAPS20UM

SHBC PAPS20UM are uniform 20 μm polystyrene microspheres developed for precision gap control, layer separation and bond-line thickness control.

The spherical particles provide stable physical support between substrates, films and bonded components. They are suitable for display materials, smart glass, optical components, adhesives and electronic assembly.

Product Specifications

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

Key Advantages

Precise 20 μm Gap Control

The controlled particle diameter helps maintain a defined separation between substrates or functional layers.

Uniform Spherical Particles

Regular spherical morphology provides consistent support points and helps reduce local thickness variation.

Controlled Particle Size Distribution

Uniform particle sizing supports repeatable gap formation and stable assembly results.

Smooth Particle Surface

The smooth surface supports even distribution in compatible adhesives, coatings, sealants and carrier materials.

Polymer Spacer Structure

The polystyrene structure provides mechanical support while offering a lightweight polymer alternative to inorganic spacer particles.

Reliable Batch Supply

SHBC supports sample evaluation, pilot-scale orders, customized specifications and bulk manufacturing.

Main Applications

Adhesive Gap Control

PAPS20UM can be mixed into compatible adhesives or sealants to help maintain an approximately 20 μm bond-line thickness.

LCD and Display Materials

The microspheres can be evaluated as spacer particles in display structures requiring controlled layer separation.

PDLC and Smart Glass

Suitable for polymer-dispersed liquid crystal films and switchable glass requiring uniform spacing between functional layers.

Optical Components

Used for coating thickness control, optical layer separation and precision component assembly.

Semiconductor Packaging

Can be evaluated for controlling adhesive thickness between semiconductor chips, substrates and packaging components.

Sensors and Electronic Assembly

Suitable for assemblies requiring defined spacing between glass, films, sensors, circuit boards or housings.

Uniform polymer spacer particles are used commercially for display gap control, smart glass, adhesive thickness control and semiconductor assembly.

How 20um Spacer Microspheres Work

PAPS20UM microspheres are dispersed in a compatible carrier or positioned between two surfaces.

During assembly, the particles act as physical support points. Their nominal 20 μm diameter helps define the final separation distance and reduces direct contact between the substrates.

Benefits for Manufacturers

PAPS20UM helps support:

• Controlled 20 μm spacing

• Uniform bond-line thickness

• Consistent support-point distribution

• Reduced local gap variation

• Repeatable bonding and assembly

• Compatibility with multiple material systems

• Customized product development

• Sample-to-bulk scale-up

Processing Guide

Disperse the microspheres evenly before coating, spraying or mixing them into an adhesive.

Important processing factors include:

• Carrier compatibility

• Microsphere concentration

• Adhesive viscosity

• Dispersion time

• Mixing intensity

• Dispensing method

• Assembly pressure

• Required support-point density

Gentle mixing or controlled ultrasonic dispersion may help reduce particle aggregation. Final conditions should be optimized for the customer’s formulation and production process.

Adhesive Gap-Control Considerations

The recommended PAPS20UM concentration depends on:

• Bonding area

• Adhesive volume

• Dispensing equipment

• Required number of support points

• Assembly pressure

• Target bond-line uniformity

Excessive particle loading may affect adhesive flow or dispensing. Excessive assembly pressure may also change the final gap. Process validation is recommended before production use.

Custom Spacer Microspheres

SHBC provides customized spacer microspheres for different material and manufacturing requirements.

Available options may include:

• Custom particle diameter

• Particle size tolerance

• Particle size distribution

• Solid content

• Dispersion medium

• Surface treatment

• Dry powder or suspension

• Custom packaging

• OEM and ODM supply

Please provide the target gap, application, carrier material and required quantity when requesting customization.

Quality Control and Documents

SHBC applies controlled manufacturing and batch inspection to support consistent product performance.

Available documents may include:

• Certificate of Analysis

• Technical Data Sheet

• Safety Data Sheet

• Particle size test report

• Batch inspection record

• Customized specification sheet

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. manufactures polymer microspheres, silica microspheres, magnetic beads and functional microsphere materials.

SHBC provides:

• Precision particle manufacturing

• Stable batch-to-batch quality

• Multiple particle-size options

• Customized specifications

• Sample evaluation support

• Pilot-scale supply

• Bulk production capability

• OEM and ODM services

Frequently Asked Questions

What are PAPS20UM microspheres?

PAPS20UM are nominal 20 μm polystyrene microspheres designed for precision gap and thickness control.

What are 20um spacer microspheres used for?

They can be evaluated for adhesive gap control, display materials, PDLC films, smart glass, optical components, sensors and electronic assembly.

How do spacer microspheres control thickness?

The particles form physical support points between two surfaces. Their diameter helps determine the final separation distance.

Can PAPS20UM be added to adhesives?

Yes. PAPS20UM can be mixed into compatible adhesives and sealants to help control bond-line thickness.

Can they be used in semiconductor packaging?

They can be evaluated for controlling adhesive thickness and component spacing in semiconductor and electronic packaging.

Can SHBC customize the specifications?

Yes. Particle size, size tolerance, solid content, dispersion medium, supply form and packaging can be customized.

Are samples available?

Samples are available for dispersion, material compatibility and process evaluation before bulk ordering.

Does SHBC support bulk production?

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

Request a Sample or Quotation

Contact SHBC for PAPS20UM samples, technical specifications, customized 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: 20um Spacer PS Microspheres
Catalog Number: PAPS20UM
Material: Polystyrene, PS
Nominal Particle Size: 20 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.