The WD-40 Specialist Fast Drying Contact Cleaner, cleans oil, dirt, flux residue and condensation from sensitive electronics and electrical equipment. Fast acting, non conductive cleaner. Penetrates quickly and leaves no residue. For use on Electrical Equipment, Contacts,. Plastic & Rubber. Smart Straw⢠Spray System for flat and dotted spraying. Ideal for example for connectors, printed circuits, controls, printers and copiers, switches or read heads. NSF H2 registert 145372 Package Size = 400 ml Package Type = Aerosol Application = Controls, Electrical Equipment, PCBs, Photocopiers, Precision Equipment, Printers, Switches, Tape Heads Product Category = Fast Drying