K-Seal’s ceramic and copper formula mixes with all types of anti-freezes. The sealant works by mixing with engine’s coolant and making a ceramic repair after the engine has reached working temperature. The sealant is made to work in engine blocks, heads, radiators, heater matrixes, freeze plugs and head gaskets and will not block or damage the cooling system. The company offers a money-back guarantee.
SOLV-TEC, www.solv-tec.com, (888) 254-0150