What is Peroxide-Cured EPDM Brake Rubber? Peroxide-cured EPDM (Ethylene Propylene Diene Monomerrubber) is a highly versatile material widely used in the rubber industry due to its excellent resistance to high temperatures, ozone, and oxygenated solvents. This makes it particularly well-suited for demanding environments like automotive brake systems, heavy-duty brake seals, and other critical applications. Comparison: Peroxide-Cured EPDM vs. Sulfur-Cured EPDM EPDM can be cured using two primary methods: sulfur curing and peroxide curing. While sulfur-cured EPDM is adequate for general-purpose applications, it has limitations, especially in heat resistance (max 120°C). In contrast, HOBA’s peroxide-cured EPDM for brake seals and brake caliper seals offers significantly better heat resistance, withstanding temperatures up to 175°C, making it ideal for more demanding, high-heat applications. Advantages of Peroxide-Cured EPDM in Brake Systems Peroxide-cured EPDM stands out for its exceptional performance in brake seals, caliper seals, brake boots, and brake cups. It offers superior heat-aging resistance, excellent compression set, and the crucial advantage of non-blooming, ensuring long-term durability and stable performance. Additionally, this material is highly resistant to ketones and alcohols, key chemical components found in many brake fluids. However, it is not suitable for applications involving mineral oils or fuels. HOBA’s peroxide-cured EPDM brake rubber ensures enhanced performance and reliability in extreme conditions, providing an ideal solution for heavy-duty automotive brake systems.