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Your cart is empty.Medium-strength, general purpose thread sealant for straight/straight and straight/taper threads and fittings. Fills the space between threaded parts and seals and locks at the same time. Loctite 577 thread sealant is a medium-strength, general purpose thread sealant for straight/straight and taper/straight threads and fittings. Great for overhead applications and fast application at low temperatures. Excellent chemical and thermal resistance; gel-like form results in less migration of product after application. Loctite 577 is designed for the locking and sealing of metal pipes and fittings as well as other threaded assemblies. The product provides an instant, low-pressure seal for metal pipes and fittings. It will not creep, shrink or shred. Suitable for fast application at low temperatures. Cures on lightly contaminated surfaces and does not require a primer on inactive metals. It has excellent chemical and thermal resistance and offers less migration of liquid product after application to the part.
naaman
Reviewed in the United States on August 14, 2022
This stuff is incredible on NPT’s and it will even seal straight threads like on normal bolts. This stuff will not leak with any liquid -I have used on many applications now that involves Gasoline, Ethanol, brake fluid, coolant and water. This product works and you will not be disappointed. I don’t even bother with Teflon tape, Teflon paste or green stuff anymore. This was my choice of sealant when I was a field service engineer, don’t settle for anything else trust me. Would buy again!
Christopher L. Blake
Reviewed in the United States on July 4, 2021
Received opened and expired!
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