UE Premium Electronic Contact Cleaner Spray Where to use (Application) circuit board, electrical contacts, switches, sockets, precision instruments etc Directions for use Spray directly on the components to be cleaned convenient aerosol package provide pinpoint cleaning accuracy which reduces solvent waste. What does it do ? cleans oil, grease, dirt, condensation and moisture from circuit board, electrical contacts, switches, sockets, precision instruments etc. Electronic contact cleaner is a residue-free formulation, safe for a wide variety of plastics, Prevents degradation of electrical signal. Precaution: Do not expose to heat, protect from direct sunlight & do not expose to temperature exceeding 500c. For skin contact wash with mild soap & water. If swallowed do not induce vomiting seek medical attention immediately.