Brake Caliper Piston Boots

KOK supplies brake caliper piston boots directly to OEM customers, engineered to protect brake caliper assemblies from contamination, corrosion, and premature wear throughout the service life of the braking system.

Manufactured using developed polymer formulations, including KOK’s proprietary EPDM compounds, these piston boots are designed to maintain elasticity, sealing integrity, and dimensional stability under repeated thermal cycling and exposure to moisture, road contaminants, and brake fluids.

Engineering & Material Performance

KOK brake caliper piston boots are developed with a focus on:

• Long-term resistance to heat, ozone, and environmental aging
• Effective exclusion of dust, water, and corrosive debris
• Consistent fit and retention within a wide range of caliper architectures
• Compatibility with OEM brake system materials and hydraulic fluids

Compound development, tooling control, and dimensional validation are managed within KOK’s engineering and quality frameworks to meet OEM durability and series production requirements.

Application Scope

• Passenger cars and light commercial vehicles
• Scooters and other two-wheel mobility platforms
• OEM hydraulic brake caliper systems requiring durable environmental protection