CRC Leak Detector is formulated for the quick detection of gas and air leaks. The water based formula contains no oils, silicones or harmful solvents. CRC Leak Detector quickly and reliably locates gas leaks and pressure losses in pipes and pressurised systems by forming highly visible bubbles when applied over any leak.ApplicationsRecommended for use on refrigeration units, air conditioners, exhausts, pipes, welding seams and compressors, can be used for almost all types of gasses (compressed air, refrigerants, natural gas, propane, butane, acetylene, oxygen, LPG, nitrogen and carbon dioxide)