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๐ฉ Seal like a pro, leak like never before!
The ARP 100-9904 PTFE Thread Sealer is a 50ml compact liquid sealer designed for metal, plastic, and rubber threads. Its water-resistant formula ensures a leak-proof seal, making it the go-to choice for professional-grade applications such as Ford 302 head bolts. With a 4.8-star rating from over 400 users, it replaces traditional Teflon tape for a cleaner, more reliable thread sealing solution.

| ASIN | B000CFQ38G |
| Best Sellers Rank | 743,242 in DIY & Tools ( See Top 100 in DIY & Tools ) 6,098 in Sealers |
| Brand | ARP |
| Compatible Material | Metal, Plastic, Rubber |
| Customer Reviews | 4.8 out of 5 stars 426 Reviews |
| Global Trade Identification Number | 00672036000493 |
| Item Dimensions | 15.2 x 5.1 x 3.8 centimetres |
| Item Form | Liquid |
| Item Weight | 0.07 Kilograms |
| Item dimensions L x W x H | 15.2 x 5.1 x 3.8 centimetres |
| Item weight | 0.07 Kilograms |
| Manufacturer | ARP |
| Manufacturer Part Number | 100-9904 |
| Material | Polytetrafluoroethylene |
| Model Number | 100-9904 |
| Number of Items | 1 |
| Style | Compact |
| Style Name | Compact |
| UPC | 672036000493 |
| Unit Count | 49.98 millilitre |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
R**K
Correct sealer to use on Ford 302 head bolts threads that protrude down into the water jacket.
This is the correct sealer to use on Ford 302 head bolts threads that protrude down into the water jacket. No leaks, worked perfectly.
L**Y
Excellent
This stuff is great! No more Teflon tape for me
T**E
Best thread sealer for automotive application
This is the best thread sealer for automotive application. I was replacing the coolant temperature sensor for the 2004 GMC Envoy 4.2l I6 Atlas engine (one of the smoothest idling GM engines). I ordered the factory part from GM and changed it out. The next day I noticed a coolant leak. The factory part comes with white thread sealer, dry, on the threads all ready for installation. However, the sealer was not working as it should. I removed the part and did a visual inspection. I did not see any issues with the threads. I did chase the threads to make sure there were no burrs. Then, I put this thread sealer on the threads making sure I only covered the same area as the factory thread sealer. You don't want to cover all the threads as you will lose a the electrical ground connection. After installation, watched for leaks every day for a week. Problem solved!
J**S
Great Sealant for Threads
Excellent product , great sealing capability.
R**S
Great product!
Awesome product! The ONLY thing I will use when building a motor that has bolts that penetrate the water jacket!
Trustpilot
3 weeks ago
2 weeks ago