







⚡ Seal Like a Pro, Last Like a Legend
Permatex Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker is a premium, sensor-safe silicone sealant designed for high-torque, vibration-heavy automotive applications. It withstands extreme temperatures (-65°F to 500°F), resists aging and weathering, and creates durable, flexible gaskets that outperform traditional pre-cut options. Trusted by professionals for valve covers, timing gear covers, and oil pans, it ensures leak-proof, long-lasting seals in demanding environments.














| ASIN | B000HBGI8K |
| Best Sellers Rank | 11,150 in Automotive ( See Top 100 in Automotive ) 132 in Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,216) |
| Date First Available | 7 Dec. 2011 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 118 g |
| Item model number | 82194 |
| Manufacturer | Permatex |
| Manufacturer part number | 82194 |
| Model | 599B U-GREY RTV |
| OEM Part Number | 82194 |
| Product Dimensions | 3.05 x 9.65 x 20.32 cm; 117.93 g |
| Special Features | Sensor safe |
D**D
So far so good
Seems to be working great on my new oil pump fitted. Was easy to apply and so far no leaks
S**N
Good product
Very good product, i would recommend this product, I used it to seal a timeing chain cover
C**N
Effectively sealed
Used to fit thermostat gasket, good deal.
M**T
Recommended
Used on a Toyota Yaris as similar to Toyota oem. Worked very well on timing chain cover and sump. It’s at a good price point, created a great seal when used to recommended bead size torque on a challenging sump pan ( the one with 2 bolts inside bell housing)
A**T
good
all just ok
L**S
Does the job
Unlike some Loctite RTVs, this didn't arrive cured hard in the tube before first use, and remained usable even after opening and storing for a couple weeks. Success! I've used it to seal a timing case cover on an old engine, which has a large coolant channel going right through it. So you have engine oil, vibration, coolant and a lot of temperature gradients in the mix. It's holding up just fine so far. No leaks. It would be better if delivered in a plastic tube as the metal ones eventually crack, and spoil the contents.
M**S
Amazing
Can’t complain, it’s amazing stuff
S**E
Is coolant and oil resistant
Going to ensure the water passages stay sealed on my inlet manifold.
W**N
箱も中身も問題なし
S**N
Very good product !!!
E**L
used it for a car water pump change it does the job like other RTVs I tried , other reason because it says " it's save for sensors ".
E**S
excellent product
X**G
Works better than expected!
Trustpilot
2 weeks ago
2 weeks ago