Bull Chemicals recognizes brake pads Zircon Powder as a critical functional additive in brake pads formula, delivering three core benefits that enhance braking performance and durability—with strict technical parameters ensuring consistent reliability for industry applications.
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First, it excels in high-temperature stability.
Boasting a melting point of 2550°C and a thermal expansion coefficient of 4.5×10⁻⁶/°C (20-800°C), it resists sintering and deformation even under extreme braking conditions, where pad temperatures often exceed 600°C. This maintains structural integrity, a key factor in preventing sudden braking failure.
Second, it optimizes friction coefficient stability.
When incorporated at 8-12 wt% (a standard dosage for premium brake pads), Bull Chemicals’brake pads zircon powder acts as a mild abrasive and friction regulator. It keeps the dynamic friction coefficient (μd) within 0.35-0.45 (per SAE J2707 standard), effectively avoiding “friction fade” (with μd drop <15% at 600°C) and ensuring smooth, predictable braking.
Third, it reduces wear rate.
With a Mohs hardness of 7.5, it balances wear resistance and rotor protection—tests show brake pads using this zircon powder have a wear rate of ≤0.8 cm³/(MJ) (per ISO 6310), 20-30% lower than those with traditional silica-based additives. This extends pad lifespan while minimizing rotor scoring.
To meet industry demands, Bull Chemicals’ zircon powder meets a minimum purity of 99.5% (verified via XRF testing) and features controlled particle size distribution (D50: 5-10μm), ensuring seamless integration into brake pad matrices and consistent performance across automotive, heavy-duty, and industrial scenarios.
