🔧 Lock it down with confidence—never worry about loose threads again!
Loctite 231119 Yellow 577 is a medium strength liquid thread sealant in a convenient 50 mL tube, designed to securely lock metal fasteners while allowing future disassembly. Made in the USA, it offers reliable sealing performance for professional and DIY applications.
J**L
No leaks after using to seal stainless steel pipe connections
Using Loctite spray on cleaner primer with this product, guarantees leak free stainless steel pipe connections. After applying the sealer to primed pipe threads, this thread sealer begins setting up within 5 minutes. Polypropylene Glycol coolant defied all attempt at sealing stainless steel pipe connections until I cleaned the pipe threads, applied Loctite Primer, allowed it to dry, then applied a coat of Loctite Liquid thread sealer. No coolant leaks when using this thread sealer on pre-primed connections. I recommend this product for stainless steel, brass, and Iron pipe connections.
M**N
Stopped the leak when nothing else would
Copper pipe fittings on my hot water tank would NOT seal. Tried all kinds of teflon tape, tightening, new fittings, nothing worked. Found this stuff, followed directions (imagine that!), problem solved. Leak fixed. GREAT stuff!
B**C
Good stuff but lack of instructions
This stuff dries hard and very quick maybe in 15-20 minutes but you have to screw fitting ASAP if you wait 10 minutes it's already too late. Also put it only on one side of fitting make one and twist it in right away.
C**N
Works great
Works great
P**N
one was fine but the other wasn't even half
Got two tubes, one was fine but the other wasn't even half full
E**A
Sellador de rosca anaeróbico
Efectivo para acoples roscados anaeróbicos.
S**R
Finally found something that stops the leaks
We must have drained that radiator eight times, trying two kinds of tape and two kinds of pipe dope to no avail. The valve tails and extensions had straight threads and short lengths, so no way to tighten them properly. This stuff along with Loctite 55 pipe sealing cord finally did it.
K**O
Easy applicator.
The product was used on bolts attaching a stator on a boat jet drive. The bolts sinched and sealer perfectly. Yellow allows me to remove these bolts without heat. I can always rely on Loctite.
Trustpilot
1 month ago
2 months ago
