This is only PROPER sealant for any air pneumatic or hydraulic system. LOCTITE is an aeronautical sealant that is designed to work in extreme heat or cold. It does not expand and and contract like tephlon or pipe dope and sets up and seals EVERY TIME. If you are looking for peace of mind when you are installing look no further, the LOCTITE 545 is EXACTLY what you need.
LOCTITE® 545™ Hydraulic, Pneumatic Sealant Thread Sealant is a pipe sealant designed for the locking and sealing of metal pipes and fittings. This product is specially formulated to offer high lubricity for easy assembly and removal.
Recommended for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general. It contains no fillers or particles that could contaminate system fluids, foul valves, or clog fine filters and screens. Suitable for fittings up to 2 in. (50 mm) in diameter including pneumatic and hydraulic fittings. Excellent solvent resistance. ABSSM Approved. CFIA Approved.