CRC NF Contact Cleaner is a revolutionary, technically proven, stable, no flash point, non-flammable, inert high purity cleaning solvent. CRC NF Contact Cleaner is non-conductive, non-corrosive, non-staining, rapid-complete evaporation and contains no lubricants. Recommended for cleaning: Relays, Switches, Circuit Breakers, Printed Circuit Boards, Connectors, Contacts, Test Equipment, Motor controls, Sensors, Flux removal, Terminals, Plugs and Jacks.