How hard is to unscrew after this has been set for awhile?

Comes apart with minimal force, it is a sealant not a thread locker. It works especially well on sealing thread that are not tapered pipe threads. I use this on my harley fluid drain plugs

Does this product solidify after 72 hrs as cited in the tds? after being applied for 52 hrs it remains a soft tacky paste.

Hello. I use this product quite often. It holds very well, seals very well. I just put some on my differential fill plug and seals it great. To answer your question, this product, when first put on threaded hardware will be wet and soft and be able to seal low pressure and intermediate pressure. Parts can be readjusted, torqued, etcetera with in 24 hours of application. 72 hours just means it is fully cured and can withstand higher pressures. But, once applied, it holds very well within hours. Definitely within 24 hours. It does not solidify, it stays wet and soft. It's good stuff. Hope this helped. BJ

I was told i could use this on an oil pressure sending unit and seen on websites it could be used. so someone just told me I shouldn't. So can i?

Yes, it works great. I use it on oil and brake system components exposed to high pressures and temperatures. No leaks, ever. Make sure it is applied to clean Dry threads. Use a solvent to clean threads, let dry, then apply the permatex. Be careful not to cross thread. Don't overtighten!! Cheers

Will this work on differential bolts that thread through into the case and are exposed to differential fluid?

Hello Michal. Yes this thread sealant does work on sealing differential fluid. I have used and know for sure it works on sealing the differential fill plug. If your referring to the cover bolts, you need a gasket or gasket maker to seal the cover. I'm not sure what bolts your referring to, but yes this sealant will seal differential fluid. Hope this helped.

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Reviews

K**L

Works as advertised

Spot on. Sealed my new temperature sender unit nicely into my thermostat housing. Tested all good.

11.11.2025

S**D

Fantastic

Used this on a bleed nipple for a rear brembo brake caliper for a motorcycle Within seconds I was able to bleed the caliper with no air leakage I had spent days rebuilding the caliper numerous times only to have the same problem This sorted my problem in second's Air had been passing by the bleed nipple

14.02.2026

B**N

Thread sealant

Perfect thread sealer. Used on my turbo oil drain as it is a brass fitting that screws into the block. Followed the instructions, nice and easy and doesn't leak. Great product and good price

15.07.2025

L**K

Excellent stuff

I bought this as I've always had a slight weep on my vans sump plug when i do an oil change despite using a new plug and washer every time i used this and its gone now.. it states it doesn't set so I just hope I can undo it when I do my oil next but im confident it will... iv ended up using on other stuff around the house so its proved more useful than I initially thought

24.10.2025

P**N

Worked fine at exhaust temperatures

I used it on an exhaust stud that was leaking oil, and it performed perfectly even at the high temperatures involved.

24.12.2025

N**N

Leak solved!

Solved a persistent little diesel leak on a compression fitting and much better than using PTFE tape

20.12.2025

M**N

Perfect for job

Does what it claims, I'm happy...

28.07.2025

J**7

Ronseal

Just what I needed for leaky Harley engine bolts 😁

17.10.2025

J**O

Que es muy buen producto

20.01.2026

G**G

High temp sealing paste is what it says, the best part with this product is price on Amazon, half price compared to Ford main dealer. All good

9.12.2025

S**.

used it to seal the differential plugs on my Ram 1500. It worked perfectly! The application was smooth and easy, and it provided a strong, leak-proof seal that gives me peace of mind. I really appreciate that it’s designed for high-temperature environments, which is essential for automotive applications. After driving for a while, I’ve had zero leaks and everything is holding up great. The tube size is convenient and has plenty of product for multiple uses. If you need a reliable, high-performance thread sealant for your vehicle, this is an excellent choice. Highly recommend for anyone doing differential or drivetrain work!

3.02.2026

H**R

I have applied this seal on thread bolt and left it for almost 80 hours, unfortunately still not dry

25.04.2024

F**R

Works as expected. No leaks after a short setting and curing period. Used it to seal an oil pressure sensor. Heat resistant

9.11.2025

ASIN	B0002UEOP0
Best Sellers Rank	27,183 in DIY & Tools ( See Top 100 in DIY & Tools ) 481 in Sealers
Brand	Permatex
Customer Reviews	4.7 4.7 out of 5 stars (3,454)
Date First Available	14 Aug. 2012
Exterior	Painted
Item Weight	18.1 g
Item model number	59214
Manufacturer	Permatex
Manufacturer part number	59214
Model	Permatex 59214
OEM Part Number	PMT59214
Product Dimensions	1.75 x 9.68 x 16.51 cm; 18.14 g

59214 High Temperature Thread Sealant, 6 ml Tube, Pack of 1

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