CRC QD contact cleaner is a unique blend of petroleum-distillates and alcohol which provides a suitable precision cleaner for sensitive electronics. QD contact cleaner is a cost effective alternative to all contact cleaners. QD contact cleaner 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. NSF certified. RoHS compliant.