Industrial Minerals

Wollastonite

CaSiO3
Wollastonite
Industrial MineralsWollastonite
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Product Overview

About Wollastonite

Its naturally acicular particle morphology makes Wollastonite an effective reinforcing mineral for polymer, coating, ceramic, construction and friction-related formulations. The needle-like structure contributes to stiffness, mechanical strength, crack resistance and dimensional stability, while its thermal and chemical stability support performance under demanding processing conditions.

Advantages

Key Benefits

Why Wollastonite is preferred across demanding industrial formulations.

Product advantage

Acicular Particle Structure – Supports mechanical reinforcement.

Product advantage

Good Dimensional Stability – Improves shape retention.

Product advantage

Low Oil Absorption – Supports balanced binder demand.

Product advantage

High Thermal Stability – Performs at elevated temperatures.

Product advantage

Good Crack Resistance – Supports improved durability.

Product advantage

Chemical Stability – Provides consistent functionality.

Quality AssuredISO Certified
Lab TestedEvery Batch
ResponsibleSustainable
Global DeliveryWorldwide
Product Range

Available Grades

01

Plastic Grade Wollastonite

High aspect ratio wollastonite for reinforcement in engineering plastics.

02

Ceramic Grade Wollastonite

Wollastonite for ceramic bodies with reduced firing time and improved properties.

03

Paint Grade Wollastonite

Micronized wollastonite for paints and coatings applications.

04

Friction Grade Wollastonite

Safe asbestos replacement in brake pads and friction materials.

Product Markets

Wollastonite Markets

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Product Support

Frequently Asked Questions

Important information about Wollastonite, grades and applications.

Wollastonite is used for reinforcement in plastics, ceramics flux, friction materials, and metallurgical flux due to its unique acicular structure.

Yes, wollastonite is an approved, safe alternative to asbestos in friction materials and reinforcement applications with no health concerns.

We offer wollastonite with aspect ratios from 3:1 to 20:1, depending on the grade and processing for different application requirements.

Wollastonite reduces firing time, minimizes shrinkage, and improves strength in ceramic bodies while providing excellent thermal shock resistance.

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