Permatex27038 Optimum Red High Temperature Gasket Maker, 3 oz

This product is a fantastic find! It's reasonably priced, making it accessible for most budgets without compromising on quality. The product is exactly as described, and its usefulness cannot be overstated. I've found it to be incredibly practical and efficient in meeting my needs. The attention to detail is impressive, and the performance is on par with more expensive alternatives. If you're looking for something reliable, well-made, and at a fair price point, this is the perfect choice. Highly recommended!

Purchased this to use on my dirt bike header pipe. Sealed up great and was better than other solutions I tried.

Great stuff for what I need it for. I use it in mushroom cultivation. To seal jars and use as injection ports. I recommend to anyone doing the same. Easy to use great price. Durable up to 500°. I use in boiling water no leaks. Easy cleanup

This is a good high temp silicone. Great for making gaskets. I've used it before and it is a 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

Haven't used the caulk gun size tube yet but I've used the same product from a squeeze tube size container and I'm very pleased with the performance. I've used it on exhaust system welds to inhibit rust and on a John Deere tractor that was leaking from the oil pan gasket. Just applied it externally without removing the oil pan and surprisingly it stopped the leak and saved me from removing the engine. Two months later and not a drop of oil has leaked out. So happy. Great sealing agent.

Works great! Used it in my fireplace.I only had to use a little. So, I hope it keeps next time i need it.

Ive tried a lot of sealants. Thsi 90 minute is awesome. Its super messy but that is on me most of the time.I like that I can lay a bead, attach the parts finger tight only, weight 60 minutes, torque to spec, then wait another 30 and drive the car. Other sealants give me anxiety if they are actually dry and ready. Never a leak with this stuff. Confidence is king with this product.FYI I might have gotten the times incorrect in this review. I think that is the right time interval but I dont commit this kind of stuff to memory. Just ready the use instructions before you apply to make sure.