A D.O.T.-approved high-performance compound for brake shoes on high performance street vehicles and race cars. Carbotech™ Kelated Metallic (CKM) achieves a very high coefficient of friction (approx. 0.48 to 0.50) by taking advantage of a chemical reaction within the friction mass, which creates a tri-alloy metallic film at the liner/drum interface when subjected to heat and pressure. Designed to overcome the shortcomings of other liner materials, CKM is very versatile and provides excellent braking performance in a wide variety of applications. This compound demonstrates excellent wear characteristics and a very high resistance to lock-up under hard braking. Optimal recommended operating temperature range is from ambient to 750°F.