Loctite 542 hydraulic and pneumatic sealing systems do not pollute the hydraulic system, in slightly greasy surface may be used. Fast curing, low strength. It does not contain fillers does not block the valve or filter system. For sealing and locking (with taper threaded joint) high-pressure hydraulic power systems, M36 the following taper thread (NPT). Hydraulic / pneumatic systems seal color: purple; Viscosity (mPa.s): 9000 ~ 20000; temperature range (℃): - 18 ~ 150; resistant to pressure (sealing working pressure): ≤10000psi