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Induminerals - Acicular Wollastonite
Induminerals - Friction Parts.png

FRICTION-GRADE WOLLASTONITE FOR BRAKE APPLICATIONS

REINFORCING MINERAL FOR STABILITY, WEAR RESISTANCE & CONTROLLED COEFFICIENT OF FRICTION

Ideal for brake pads, clutches, and industrial systems — wollastonite delivers mechanical strength and friction stability under pressure.

InduMinerals supplies wollastonite grades for use in: – Automotive brake pads – Motorcycle brake shoes – Clutch facings and linings – Industrial braking systems Key benefits: – Reinforcing filler for mechanical strength – Improves thermal stability and heat resistance – Contributes to a stable coefficient of friction (CoF) in wet and dry conditions – Low fade and high wear resistance – Thermal conductivity control in high-speed braking environments Its acicular (needle-like) shape and chemical purity allow it to replace or complement other fibers like glass, aramid, or asbestos substitutes in demanding formulations.

RECOMMENDED GRADES FOR FRICTION APPLICATIONS

HIGH ASPECT RATIO

  • Use cases: Automotive brake pads, high-performance clutches, truck linings

  • Benefits:

  • Acicular morphology for mechanical reinforcement

  • Supports high temperature stability and fade control

  • Compatible with organic and semi-metallic systems

ULTRAFINE HIGH ASPECT

  • Use cases: Resin-bonded pads, thin composite linings, wear-sensitive systems

  • Benefits:

  • Excellent surface finish and uniform blending

  • Enhances thermal control in thin-section applications

  • Can improve noise/vibration/harshness (NVH) profiles

TYPICAL FRICTION FORMULATION ADDITION RATES

Product Grade

High Aspect Ratio

Ultrafine High Aspect

Typical Use Level

3–8% by weight

1–4% by weight

Custom loading levels available based on binder and metal content.

KEY BENEFITS IN FRICTION COMPOUNDS

Thermal stability, wear resistance, and CoF control built in.

– Enhances fade resistance at high temperature – Stabilizes friction coefficient under pressure – Reduces wear rate on disc and pad surfaces – Replaces or reduces need for fibrous reinforcements – Improves thermal conductivity and heat dissipation – Compatible with resin-bonded and semi-metallic systems

SUPPORT FOR FORMULATORS & MANUFACTURERS

We offer:

  • Grade matching based on friction performance needs

  • Assistance with resin compatibility and filler balance

  • Delivery in dry powder or blend-ready form

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➤ Request Spec Sheet
➤ Ask a Technical Question

YOUR INDUSTRIAL MINERAL PARTNER

​InduMinerals OÜ supplies high-purity wollastonite and dolomite for ceramics, coatings, plastics, metallurgy and construction. We offer reliable CIF and FOB delivery with full technical support. A partner of the European Raw Materials Alliance (ERMA), promoting secure mineral supply in Europe.

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