POLYPHEN� PISTON TOP GOLD THERMAL BARRIER Originally developed for top fuel drag racing engines. May be used on any combustion chamber surface in any type of engine. � Reduces heat penetration on coated parts. � Evenly distributes heat, reduces hot spots, aids in flame travel and combustion. � Reduces the amount of heat the incoming air/fuel mix absorbs, thereby reducing the potential for detonation. � Sheds carbon, reduces carbon buildup. � Solvent-based, cleanup with Acetone or similar....