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

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

Product ID: 255417982

Details

Brand
Permatex
Item dimensions L x W x H
18 x 97 x 165
Item weight
0.04 Pounds
Material
Silicone
Style
6 ml

💧Resists moisture & hydraulic fluids

🔥Withstands up to 400°F high heat

🔩Locks & seals threaded fittings securely

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VT4918

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal it like a pro, last like a legend!

EFFORTLESS ASSEMBLY - Lubricates threads for smooth installation and easy disassembly.
HEAT DEFYING SEALANT - Performs flawlessly from -65°F to 400°F, perfect for extreme conditions.
LEAK PROOF CONFIDENCE - Locks threads tight to prevent leaks, vibration loosening, and wear.
VERSATILE COMPATIBILITY - Ideal for metal fittings in fuel, oil, coolant, brake, and power steering systems.
FLEXIBLE APPLICATION WINDOW - Parts can be repositioned up to 4 hours after application—no rush, no stress.

Permatex 59214 High Temperature Thread Sealant is a premium silicone-based paste designed to lock and seal threaded metal fittings against leaks, vibration, moisture, and harsh fluids. It operates reliably across a wide temperature range (-65°F to 400°F), lubricates threads for easy assembly, and allows repositioning within 4 hours. Trusted by professionals for automotive and industrial applications, it ensures durable, leak-proof connections that stand the test of time.

Specifications

ASIN	B0002UEOP0
Best Sellers Rank	#37,724 in Automotive ( See Top 100 in Automotive ) #157 in Automotive Fillers, Adhesives & Sealants
Brand	Permatex
Customer Reviews	4.7 4.7 out of 5 stars (3,586)
Date First Available	14 August 2012
Exterior	Painted
Item Weight	18.1 g
Item model number	59214
Manufacturer	Permatex
Manufacturer Part Number	59214
Model	Permatex 59214
OEM Part Number	MB-CL1
Product Dimensions	1.75 x 9.68 x 16.51 cm; 18.14 g

Reviews

H**R

Not drying

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

25.04.2024

M**N

expired product

expired product, please send me a new one.

6.01.2024

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

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

H**A

スポーツスターのオイルドレン用に購入しました。テープは、巻く方向やカスが気になる為こちらの商品を使用しワッシャーも新品使用で作業しましたが漏れもなく問題ありません。

6.12.2025

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