🔥 Seal the deal with ultra red power!
The Permatex 81630 Ultra Red High Temperature Gasket Maker is a 3 oz silicone-based sealant engineered for extreme heat resistance up to 650°F. OEM specified and sensor-safe, it offers superior adhesion and flexibility with a low odor, non-toxic, and non-flammable formula. Ideal for professional-grade gasket making or dressing, it ensures durable, reliable seals in demanding automotive environments.
| Brand | Permatex |
| Material | Silicone |
| Item Thickness | 0.2 Inches |
| Color | Ultra Red |
| UPC | 686226816306 |
| Manufacturer | Permatex |
| Unit Count | 1.0 Count |
| Model | Permatex Ultra Red High Temperature Gasket Maker 3 oz |
| Item Weight | 4.5 ounces |
| Product Dimensions | 1.25 x 3.81 x 8 inches |
| Item model number | 81630 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | 81630 |
G**G
Excellent high temp rtv on manifold.
Used to seal exhaust manifold gasket on tractor. Several months with no leakage. If using on manifolds, just put a thin bead on both sides of gasket, just around the ports. Also used to seal exhaust studs on tractor that penetrated coolant jacket. No coolant leaks.
R**H
Sealer
Good product never had any problems with it, follow the directions.
D**A
Works
Good price, shipped right to my door didn't need run to the store to get it. A little hard in the tube when I opened it might been older tube I dont know? Worked good to seal my thermostat housing. Honestly no complaints.
S**N
Will fix your gbb mags
Great for sealing gbb magazines. Don't spend $$ on mag seal rubbers... They get pinched and most of the time don't work.
R**Y
Good product
This good product and high-quality I didn’t expect it that big it’s enough to make seal with 6 different cars
N**E
Standard high-temp gasket goo. Been around forever, still works just the same.
Used it in the past when I was younger and dumber, but it did work. Some people like to use this as an "extra measure". I can say it held up well enough that I remember having a positive impression of it. Will seal. This is NOT an acceptable replacement for a gasket, but if you ain't got one, it'll get you outta a jam, and there are more specific applications where I use it. A quick-fix if you choose to use it that way, and holds up well enough.
E**K
Works Great
I used this during the build of my second Voron 2.4 3d printer. I used it in the build plate and the heating element. I also used this product on my first build years ago and it is still looking good. I would buy it again.
M**R
Seal r up
great product,
