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Description
Permatex High Performance Thread Sealant 56521 is an OEM-specified solution designed for metal tapered pipe threads. Rapid-curing and PTFE-enhanced, it delivers a reliable, high-pressure seal up to 10,000 PSI while preventing galling, corrosion, and rust. Ideal for demanding automotive and industrial fittings.
Permatex High Performance Thread Sealant - 56521 Item # 877224
Description
Features:
- Permatex® High Performance Thread Sealant is OEM specified
- Formulated specifically for metal, tapered pipe thread fittings, it replaces thread seal tape and pipe dopes
- Cures rapidly to withstand 10,000 PSI
- Prevents galling and protects mated threaded areas from rust and corrosion
- Contains PTFE
- Suggested Applications: Stainless steel fittings, head bolts into through holes, oil PSI sending units/sensors, oil and coolant lines, intake manifold switches, rear axle fill plug, fuel fittings
Part Numbers for Permatex High Performance Thread Sealant - 56521
Reviews
Rated 5 out of
5
by
Morgan 321 from
Good thread sealant
Great for assembling thru-hulls. Parts thread easily and no messing up wrapping tape in the wrong direction. Allow time to cure before applying full pressure.
Date published: 2025-08-28