CHEMTRONICS's CP400 Chempad presaturated wipes are general purpose, super saturated, lint-free cleaning felt wipes. They are excellent for general purpose cleaning of computers, office, and laboratory equipment. These highly effective cleaning wipes are ideal for cleaning sensitive surfaces, fiber optic connectors, electronics components, touch keypads, keyboards, instrument housings, and magnetic tape heads. Chempad quickly and safely removes handling soils, dirt and oxides from PCBs, mechanical / electrical assemblies, and other electronic equipment. Chempad is especially effective in removing ink and permanent marker.