7um Spacer PS Microspheres PAPS7UM

7um Spacer PS Microspheres PAPS7UM

SHBC PAPS7UM are uniform 7 μm polystyrene microspheres designed for precision gap control and thickness control.

The spherical particles act as physical spacers between substrates, films or bonded components. They are suitable for LCD, PDLC, smart glass, optical materials, adhesive bonding and electronic assembly.

Product Specifications

Particle size distribution, solid content, supply form and packaging are available according to the final specification and batch Certificate of Analysis.

Key Advantages

Precise 7 μm Spacing

The controlled particle diameter helps maintain a defined separation between two material surfaces.

Uniform Particle Size

Consistent particle sizing supports stable gap control and reduces local thickness variation.

Spherical and Smooth Surface

Uniform spherical morphology provides stable support points and supports even distribution in compatible material systems.

Polymer Spacer Structure

Polystyrene particles provide controlled mechanical support and are less likely to damage sensitive substrates than excessively hard spacer materials under suitable processing conditions.

Reliable Batch Consistency

Controlled production supports repeatable particle size and performance from laboratory testing to bulk manufacturing.

Main Applications

LCD Cell Gap Control

Used between LCD substrates to help maintain a uniform liquid crystal layer thickness.

PDLC and Smart Glass

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

Adhesive Gap Control

Added to compatible adhesives or sealants to help maintain a defined bond-line thickness.

Optical Films

Used for coating thickness control, layer separation and optical material development.

Touch Panels and Sensors

Suitable for assemblies requiring micron-level spacing between glass, films, sensors or electronic components.

Electronic Assembly

Can be evaluated for gap control between substrates, chips, housings and packaging materials.

Uniform polymer spacer particles are commonly used for LCD gap control and adhesive thickness control in optical, sensor and electronic applications.

How 7um Spacer Microspheres Work

PAPS7UM microspheres are dispersed in a compatible carrier or positioned between two substrates.

During assembly, the particles form physical support points. Their nominal 7 μm diameter helps define the final separation distance and reduces direct contact between the two surfaces.

Dispersion and Use

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

Important processing factors include:

• Carrier compatibility

• Microsphere concentration

• Material viscosity

• Dispersion time

• Ultrasonic conditions

• Coating method

• Assembly pressure

• Target spacer density

For wet spraying, competitor guidance commonly recommends pre-dispersion in a compatible alcohol solvent followed by controlled ultrasonication to reduce aggregation. Final conditions should be validated in the customer’s own formulation.

Adhesive Gap-Control Benefits

When mixed into an adhesive, PAPS7UM can provide physical support points during bonding.

The required particle loading depends on the bonding area, adhesive volume, dispensing method, assembly pressure and target support-point density.

Process testing is recommended before production use.

Custom Spacer Microspheres

SHBC supports 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

Quality Control

Available product 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. supplies polymer microspheres, silica microspheres, magnetic beads and functional microsphere materials.

SHBC provides:

• Precision particle manufacturing

• Stable batch-to-batch quality

• Multiple particle sizes

• Customized specifications

• Sample evaluation support

• Pilot-scale supply

• Bulk production capability

• OEM and ODM services

Frequently Asked Questions

What are PAPS7UM microspheres?

PAPS7UM are nominal 7 μm polystyrene microspheres developed for precision spacing and thickness control.

What are 7um spacer microspheres used for?

They can be evaluated for LCD panels, PDLC films, smart glass, optical materials, adhesive bonding, sensors and electronic assembly.

How do spacer microspheres control the gap?

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

Can PAPS7UM be added to adhesives?

Yes. They can be evaluated in compatible adhesives and sealants to control bond-line thickness.

Can SHBC customize the specifications?

Yes. Particle size, 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 PAPS7UM samples, technical specifications, customized spacer microspheres and bulk pricing.

Please provide the target application, required gap, carrier material, order quantity, packaging requirements and estimated annual demand.

Product: 7um Spacer PS Microspheres
Catalog Number: PAPS7UM
Material: Polystyrene, PS
Nominal Particle Size: 7 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.