brake pads Spongy Iron Powder, a high-performance functional filler supplied by Bull Chemicals, is a vital component in premium brake pads formula. Its core function is to act as a dual-action friction booster and structural stabilizer, enhancing both braking efficiency and long-term durability.
Table of Contents
Firstly, it optimizes friction performance.
With a controlled particle size distribution of 80-150 μm and a high apparent density of 2.8-3.2 g/cm³, our brake pads spongy iron powder creates consistent friction interfaces. When added at an optimal dosage of 12-18% by weight, it maintains a stable friction coefficient of 0.40-0.50 across a wide temperature range (from 100°C to 600°C), effectively reducing brake fade by up to 25%.
Secondly, it strengthens wear resistance.
The unique porous structure of the powder (with a porosity of 35-45%) allows it to bond tightly with other matrix materials. This structure reduces pad wear rate by 18-22% compared to formulations using conventional iron powder, while also minimizing brake disc abrasion, thus extending the overall service life of the braking system.
Lastly, it improves thermal stability.
The high thermal conductivity of 45-55 W/(m·K) ensures efficient heat transfer away from the friction surface. This prevents localized overheating, which can degrade organic components, and keeps the brake pad structure intact even under severe, repeated braking conditions.
At Bull Chemicals, our spongy iron powder is processed to meet the strictest automotive industry standards, providing brake pad manufacturers with a reliable solution to enhance performance and safety.
