Micropearl

What is microsphere produced by Sekisui Chemical?
Plastic-based Micropearl™
Metal-plated Micropear™
Consultation

What is microsphere produced by Sekisui Chemical?

Plastic particles with uniform particle size distribution.

They can be used in a variety of applications including gap formation in automobile parts and optical components. Coating the particles with various metals adds further functions.

Wide variation of products

Wide size range

Wide size lineup from 1.5 μm to 600 μm
Various hardness control

Particles with optimum hardness and resilience can be selected in accordance with the application.
Chromaticity adjustment in accordance with application

The chromaticity can be adjusted in accordance with the surrounding part/material and to give them a light blocking effect.
Various metal coatings

Micropearl™ can be used as a high-performance conductive filler once its surface is plated.

Two types of Micropearl™

Sekisui Chemical offers Plastic-based Micropearl™ and Metal-plated Micropearl™.
The Micropearl™ series from Sekisui Chemical is high quality and can be customized in accordance with the customer’s
demands such as size, hardness, coloring, and metal type.

View Product Overview
View Product Overview

Plastic-based
Micropearl™

Five characteristics and performances

When you have concerns about
damage to objects due to
contact with other objects.
When looking for a material
with high thickness control.
When you want to eliminate
uneven adhesion.

Uniformity

High-accuracy particle
size distribution
thanks to our
proprietary particle manufacturing
technology
Stability

Excellent in chemical
resistance, voltage
resistance, and heat
resistance.
Flexibility

Achieves no damage
to the surrounding
part/material.
Resilience

Control of shape
memory property
improves the
reliability against
external influence.
Customizability

We offer
customization of
hardness, resilience,
and surface
treatment, and others
in accordance with
your application.

Products/technologies Micropearl™ can replace

Glass beads
Silica filler
Culture mediums
Embossing molding material
Simulated specimens

If you have a problem with any of these materials,
consider Micropearl™

Applicable fields

Organic EL/LCD panels
Stabilizes the liquid crystal layer gap with a highly precise spacer function enabled by uniform particle size.
All-solid-state battery for BEV/HEVs
Absorbs internal stress caused by electrode expansion and contraction and suppresses poor contact in the electrolyte.
Semiconductor ICs
Functions as a spacer in the paste and equalizes the thickness between the semiconductor and substrate.
Light control film
Stabilizes the gap through uniform particle size, achieving high contrast and responsiveness.

Specific application examples ofPlastic-based Micropearl™ See product details and lineup herePlastic-based Micropearl™

Metal-plated
Micropearl™

Five characteristics and properties

When you have concerns about
the damage to the object due to
contact with other objects.
When looking for a material
with stable conductivity.
When you want to eliminate
uneven adhesion.

Uniformity

High-accuracy particle
size distribution
thanks to our
proprietary particle
manufacturing
technology
Dispersibility

The light weight of
Micropearl™ AU allows
it to be uniformly
dispersed in resin and
paste in an easy
manner.
Flexibility

Achieves no damage
to the surrounding
part/material. As it is
possible to make a
large contact area of
conductor, the
resistance can be
lowered.
Resilience

Control of shape
memory property
improves the
reliability against
external influence.
Customizability

We offer
customization of
hardness, resilience,
and surface
treatment, and others
in accordance with
your application.

Products/technologies Metal-plated Micropearl™
can replace

Metal-based fillers
Carbon black
Metal foil clad material
Metal foil collectors

If you have a problem with any of these materials,
consider Micropearl™.

Applicable fields

Semiconductor ICs
Provides electrical conductivity and connection reliability, reducing variability in mounting areas and stabilizing electrical characteristics.
Electromagnetic shield for EV parts, etc.
Shields electromagnetic waves and stabilizes shielding performance through uniform particle size.
Various electronic parts
Provides conductivity and functionality when blended into adhesives and coating materials, achieving uniform dispersion.
Conductive bonding of metal foils
Reduces substrate damage and relieves stress during lamination of flexible substrates (metal foil/film).

Specific application examples ofMetal-plated Micropearl™ See product details and lineup here Metal-plated Micropearl™

Can Micropearl™ be used for applications like these?

Sekisui Chemical finds solutions to issues that appear exceedingly difficult to solve, together with customers.
Please consult with us.

Medical care

Use Micropearl™ for cell
culture medium by
taking advantage of its
large surface area.
Electronic parts

Use Micropearl™ for
precise gap material and
spacer in ultrafine area.
Automobiles

Use Micropearl™ for light
control glass with
sophisticated design and
liquid crystal layer or
connection of large-size
display.
Batteries

Use Micropearl™ to give
conductivity, heat
radiation, and
electromagnetic wave
shielding properties
to the stress-relaxing
material and resin
structure of all-solid-
state batteries.