They are engineered with superior semi-metallic that conducts heat well, so they are guaranteed to provide better braking over a wider range of temperatures. Helping to reduce vibration, noise, and braking harshness, Dynamic Friction Company has outfitted these pads with premium rubber-steel-rubber shims, slots, and chamfers. Take note, however, that not all applications will have slotted and chamfered features. Once the compound is pressed onto the backing plate, each pad is 100% post cured for stable friction performance and scorched to promote fast initial break-in and increased stopping power. All DFC heavy duty brake pads are manufactured with 100% asbestos-free and copper-free formulation for minimal environmental impact and compliance with the 2021 national standard material safety standards.