Sealpro ProSeal 80726 High Temperature RTV Silicone Instant Gasket, Red

The RTV itself is top-grade, one of the best out there.However, it appears the company has a legendary fascination with running a major scam, there needs to be an official investigation as I do believe this is a fraudulent intential failure (motivated by profiteering at the consumer's expense)...what you may ask is the issue?The CAP!I've used a few different types of ProSeal, and they all have caps that literally deteriorate on you after a couple of uses! The caps expand at the bottom to crack vertically, or they crack along the middle all along the circumference, effectivly preventing sealing the tube meaning it all dries up near the top and has to be peeled out each time.I have cheaper toothpaste tubes here, and their tops turned tight at extreme strengths, not even just mere light pressure on closing, and their caps last for months of daily repetitive use!When it comes to anything glue relative, some big brands have a fascination with giving you poorly designed caps so that you repeat the purchase rather than repeat the usage of the tube/bottle!I jumped across to JB Weld, so have millions of others, because after some investigation (discussions with builders/mechanics), it appears this 'weak-cap' issue is generally considered across the industry as one of the longest running scams and people jumped the brands still playing this game a long time ago.If you find this revelation helpful or in-line with your experience, please do mark this review as helpful so that more people know about this, because this 'scam' needs to stop!

The Amazon product description rates this up to 700 degrees F - when you receive the item the packet says it is only rated to 600 degrees F, with intermittent 650-degree capability. Potentially worth knowing if you're planning to order; I chose this over others on the basis of the higher temperature capability.I'll amend this review once I've seen how well it lasts, but inaccurate descriptions drive me slightly nuts, so thought I'd mention it immediately.

I used this for dressing a new gasket connecting exhaust manifold to downpipe. Applied both sides of gasket. Very old car (44 years!) so outlet manifold was a bit scruffy and far from flat faced. This product helped the gasket produce a perfect seal. You don’t disconnect exhaust gaskets very often so it makes sense to do a good job sealing them back up when you do. This product helps a lot with that. Excels at applications involving hot exhaust joints, but not suitable for joints involving fuel.

I do not recommend using a liquid seal as a permanent solution. You cannot control the bits that leak into an engine case, break off, and clog your oil filter or gunk up something else.However, this gasket maker does work perfect as a gasket maker. 0 leaks when done properly and I used this when I knew I'd need to open my clutch case next week and didn't want to waste a paper gasket.Kind of hard to remove excess once it's dried, and it's not recommended you remove it when it's wet. All in all, I recommend keeping some of this to one side. Just make sure you buy some new nozzles or clear the single one provided as soon as you're done with it

The gasket holding the glass in place had come away around one corner. After watching "Re-sealing oven door glass" video on YouTube, I bought this stuff.Was expecting delivery in 48 hours. Arrived next day!Dismantled the door, cleaned everything up and applied the instant gasket. Left it overnight with plenty of weight on top. Used a craft knife and some steel wool to remove the excess. Job done! And I've only used about 1/4 of the tube.I ran the oven all day on slowly increasing temperatures up to full blast, then down again. The gasket's expansion did bleed through a bit, so a final trim was needed. Other than that, this stuff has replaced the original gasket with something far better and more secure.Great product. Good price. Delivery time exceeded expectations!