Loctite PST 592 Thread Sealant

MSW’s Take: We use Loctite 592 whenever installing NPT/NPTF/BSPT and any other tapered thread fitting or sensors.  It’s the same sealant we use on our sensor kits.  We’ve had bad luck with other sealants, especially when used around gasoline.

Thick acrylic dimethacrylate ester lubricating thread sealant paste which prevents galling on pipe threads and fittings.

LOCTITE® 592 is an opaque, off-white, thick acrylic dimethacrylate ester lubricating thread sealant paste which prevents galling on pipe threads and fittings. It provides immediate low pressure sealing and allows the readjustment of fittings shortly after assembly. The joint seals against pipe burst pressure after 72 hours. Suits applications up to +399 °F (+204 °C). Unsuitable for plastic piping.