LD-90 is a professional industrial grade gas leak detector fluid which is completely non-flammable. LD-90 makes it possible to immediately locate any compressed gas or air leaks caused by corrosion, vibration, and mechanical faults. This will save dangerous, labour intensive and expensive gas leaks. LD-90 gas leak detector will detect mini leaks and leaks under low pressure. Ideal for checking the sealing on piping, taps, connections, and valves without discontinuing their operation. The aerosol propellant is compressed air. The propellant always remains inside the aerosol canister. LD-90 is kind to skin and has no unpleasant odour; it is safe on clothes, metals, wood, glass, plastics and all gases. These gases include natural gas, air, propane, butane, oxygen, helium, hydrogen, nitrogen, CO2 and refrigerant gases. LD-90 gas leak detector spray is used to locate the source of a gas leak and bubble size indicates gas leak rate. Large gas leaks set off bubbles, while minor gas leaks produce foaming. LD-90 does not form combustible mixtures with other gasses. LD-90 is used on compressed gas lines, pipe line both plastic and metal, fittings, valves, tanks, connections, refrigeration systems, plumbers, gas utilities, and canisters. LD-90 Gel version is ideal for tracing leaks on vertical surfaces where fluids will drip/run off before detecting leaks.