CRC QD contact cleaner is a unique blend of petroleum-distillates and alcohol which provides a suitable precision cleaner for sensitive electronics. It is a cost effective alternative to all contact cleaners. It Evaporates quickly and leaves no residue and is safe to use on all plastics. Recommended for the cleaning of telephones PCs edge connectors tape heads buss bars and circuits. Effectively removes dirt dust light oils and fingerprints from contacts printed circuit boards switches and breakers. Plastic safe - allows one product to be used in all applications without risk of costly damage to sensitive modern plastics. Leaves no residue - prevents harmful build-up on equipment and eliminates wiping and rinsing. Fast evaporation - minimizes downtime. No class I or class II ozone depleting chemicals - offers effective performance while complying with EPA regulations on the use of ozone depleting chemicals. M.S.D.L. material safety data label aerosol only - provides instant access to current safety information should an accident or OSHA inspection occur. Helps comply with OSHA hazard communications standard 29 CFR 1910.1200. NSF certified. RoHS compliant. Clear water-white liquid appearance. Alcohol odor. Petroleum distillate base.