LPS PreSolve is fast acting and gives deep penetration. It is natural based, does not contain chlorinated solvents and has a high flash point above 38C (100°F). PreSolve is non-conductive and has a low residue. PreSolve is a NSF registered category code C1. LPS PreSolve is safe on all metals and most plastics and has an Inverta Spray Valve.