Leak Detection frost-proof is perfect for the fast, comfortable and reliable location of cracks or porous parts in pressurized pipes. Leak Detection frost-proof does not form any harmful compounds with these gases: carbon dioxide (CO2), propane, butane, acethylene, oxygen, coal and natural gas, nitrogen, dinitrogen monoxide (N2O) and CFC. It is non-flammable.Leak Detection frost-proof is suitable wherever compressed air or gaseous substances are used, for example on pipes, hoses, fittings the inserting, screw and welded connections, valves and adapters.