ARP Thread sealer. These PTFE based sealers have a rust and corrosion inhibitor. In aluminum, steel, stainless steel, and plastic, they deliver a flexible, leakproof seal against coolants, water, gasoline, natural gas, and LPG. These sealers will be effective from -30 to 550 degrees F, and have a sealant range of 10,000 psi.
