StarBrite Ultimate Corrosion Blocker Plus PTEF, 22 Ounce.

StarBrite Ultimate Corrosion Blocker Plus PTEF, 22 Ounce. The easiest and most effective way to protect engine blocks, nuts & bolts, trim and tilt rams, trailers and other metal surfaces from corrosion. Will not harm painted surfaces or wiring. PTEF ® polymers bond to metal surfaces for a long-lasting barrier against damaging salt and moisture. Just spray directly to surface and allow to dry.