Brake Composites

Wollastonite

CaSiO3
Wollastonite
Brake CompositesWollastonite
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Product Overview

About Wollastonite

Wollastonite is an acicular calcium silicate mineral used as a reinforcing functional filler in brake composite formulations. Its needle-like morphology helps improve mechanical reinforcement, dimensional stability, wear resistance, thermal performance, and structural integrity of friction materials.

Advantages

Key Benefits

Why Wollastonite is preferred across demanding industrial formulations.

Product advantage

Acicular particle morphology for reinforcement

Product advantage

Improves mechanical strength

Product advantage

Supports wear resistance

Product advantage

Enhances dimensional stability

Product advantage

Good thermal stability

Product advantage

Helps maintain structural integrity under repeated braking

Quality AssuredISO Certified
Lab TestedEvery Batch
ResponsibleSustainable
Global DeliveryWorldwide
Product Range

Available Grades

01

Micron Wolsil

Grade listed for Brake Composites applications.

Solutions

Product Applications

Wollastonite supports a broad range of industrial processes and finished-product requirements.

Disc Brake Pads
01

Disc Brake Pads

Wollastonite
Brake Linings
02

Brake Linings

Wollastonite
Heavy-Duty Brake Pads
03

Heavy-Duty Brake Pads

Wollastonite
Railway Brake Blocks
04

Railway Brake Blocks

Wollastonite
Clutch Facings
05

Clutch Facings

Wollastonite
Industrial Friction Components
06

Industrial Friction Components

Wollastonite

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Product Markets

Wollastonite Markets

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Product Support

Frequently Asked Questions

Important information about Wollastonite, grades and applications.

Its acicular particle structure provides reinforcement and can help improve mechanical strength, dimensional stability, and wear performance.

Unlike more equiaxed fillers, wollastonite has a needle-like morphology that can provide additional reinforcing effects within the composite matrix.

Yes. When appropriately formulated, it can support controlled wear and increased structural durability.

Wollastonite offers good thermal stability, making it suitable for friction materials exposed to elevated operating temperatures.

It is suitable for disc pads, brake linings, railway friction materials, clutch facings, and industrial friction products.

Aspect ratio, particle size, purity, surface characteristics, and compatibility with the resin system should be considered.

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