

🔧 Seal it, lock it, forget it — the ultimate thread guardian!
Permatex 59235 High Temperature Thread Sealant is a professional-grade solution designed to lock and seal threaded fittings against leakage, vibration loosening, moisture, hydraulic fluids, and diesel fuels. It operates effectively across a wide temperature range (-65°F to 400°F), lubricates threads for easy assembly and disassembly, and allows repositioning within 4 hours. Durable and reliable, it’s trusted by professionals for leak-proof, long-lasting performance.
| ASIN | B000AAJTYS |
| Best Sellers Rank | 17,826 in DIY & Tools ( See Top 100 in DIY & Tools ) 370 in Sealers |
| Brand | Permatex |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,463) |
| Date First Available | 7 Aug. 2012 |
| Exterior | Painted |
| Item Weight | 40.8 g |
| Item model number | 59235 |
| Manufacturer | Permatex |
| Manufacturer part number | 59235 |
| Model | Permatex 59235 |
| OEM Part Number | 59235 |
| Product Dimensions | 15.93 x 7.8 x 5.08 cm; 40.82 g |
K**L
Works as advertised
Spot on. Sealed my new temperature sender unit nicely into my thermostat housing. Tested all good.
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
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
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
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.
N**N
Leak solved!
Solved a persistent little diesel leak on a compression fitting and much better than using PTFE tape
M**N
Perfect for job
Does what it claims, I'm happy...
J**7
Ronseal
Just what I needed for leaky Harley engine bolts 😁
J**O
Que es muy buen producto
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
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!
H**R
I have applied this seal on thread bolt and left it for almost 80 hours, unfortunately still not dry
F**R
Works as expected. No leaks after a short setting and curing period. Used it to seal an oil pressure sensor. Heat resistant
Trustpilot
3 weeks ago
5 days ago