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🔧 Lock it down, seal it tight — the pro’s secret weapon!
Permatex 57535 Seal and Lock Thread Compound is a high-performance thread sealant and blue thread locker hybrid that prevents loosening, leaks, and corrosion. It seals metal tapered pipe threads up to 1000 PSI and rapidly cures to withstand pressures up to 10,000 PSI. Temperature resistant from -60°F to 300°F, it’s designed for heavy-duty automotive and industrial applications, offering a clean, reliable alternative to traditional pipe tape and dope.
| Customer Reviews | 4.5 out of 5 stars 54 Reviews |
J**N
Perfect !
Easy to use - cap makes it very easy to applu no mess no fuss
E**N
Great product
Lock tite and thread sealant in one. Works great.
S**N
Good thread sealant
I'm using this to seal QC air hose couplings on my portable compressor. Any pipe dope or sealant I used in the past did not prevent eventual vibration-induced loosening of the pipe threads - which was to be expected as most 'sealants' are NOT threadlockers. This is one of the few products that claims to seal thread as well as provide some thread locking capability. Others I found were considerably more expensive. I have now have a coupling installed with this for over a month with no loosening or leakage. The compressor holds pressure with no reduction from leaks for days until I use it again. Definitely recommended.
Y**E
Great product
Love this stuff use it on most of fasteners on automotive applications. Highly recommend.
A**0
Worth it in my humble opinion.
A little thin like Elmer's glue compared to average "pipe dope" or thread sealant. But this may be due to the blue loctite additive. No complaints here. From manufacturer, "Not appropriate for Retorque applications due to the thread locker in it. Like head bolts on a sbc. Which is EXACTLY what i used it for. BUT, I used head studs, not bolts. Clamping load is shared but twisting force to threads/shank is different with studs. We shall see. No leaks yet
P**.
Great product, great seller. Arrived quick
Product was very easy to work with and has a nice hold once fully cured. I allowed 2 days before picking the jointed parts back up and it was very solid. My go to for anything that will see vibrations and regulat use.
T**.
Good product!
It works great!
D**S
Overpriced
More like a sample,and for 15 bucks you should get at least 10 tiny sample tubes.what a ripoff
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