PWR-4™ Industrial Maintenance Cleaner is ideal where safer, non-flammable, and cost effective cleaner is required. This NSF approved, innovative solvent is much safer than the four most common industrial solvents: TCE, nPB, Perc and Methylene Chloride and quickly cleans most difficult greases and oils from electronics, relays and motors. It is engineered to remain stable and effective over thousands of cycles in vapour degreasing equipment.