Permatex 80003 Form-A-Gasket No. 1 Sealant

Here we have the quintessential old-school gasket "helper" sealant. No tool box should be without it. This sealant is NOT silicone based, which can be a great thing or a bad thing. The good thing is that it doesn't harden and peel off smooth surfaces like silicone, and it doesn't stick things together like glue like silicone. Be sure you're using it for it's intended purpose. For me, I use it to lightly coat paper gaskets used with oil or water. Just a smidgen on a gasket goes a LONG way. If the sealing surfaces are extremely flat and true to each other, this will work great as well, even without a gasket. If there are surface irregularities, silicone might be a better plan. Just like silicone, this gasket maker can cause gaskets to "squirt out" when tightened, but my experience is that it does not do so as badly as silicone since it's less of a lubricant in it's "wet" state. The good thing is that if you let the Permatex #2 "set up" for an hour or so, before installing the gasket, it does much better to help increase the seal, whereas silicone simply turns to a solid mass and doesn't add to making the gasket seal better. Wear some gloves if you don't want this stuff to get all over your hands; it doesn't easily come off with soap and water, but acetone will remove it in short order. Perhaps the best thing about this stuff is that unlike silicone, it is far less likely to turn to a solid mass in the tube before you have a chance to use it again.

It feels funny to leave a review for this product. Not because it does not deserve one, but because it should be a household product in every garage of the family back yard mechanic. This stuff works great. It has an incredibly long shelf life (I had to buy another one because I lost my other one! It's kinda like the 10mm socket! LOL). It is easy to apply. The adhesion is good. I really like this product, as always.

Great Product hard to find Locally Permatex changing to RTV Silicone ;-(

I used this stuff on a RV sewer pipe repair and it worked great. I previously used silicone sealant and it did not work well in a water environment.

What's expected

Works very well.

Perfect for what I needed!

You just need this sometimes when you tar an old gasket. It worked for me

いつまでも半乾きだし、チューブも簡単に穴開いて漏れてくるし たっぷり残ってるけど他のものに買い替えた

Its non-hardening so always sticky Also it is very hazardous Not useful at all

I used this product for a carburator gasket in my small electric generator. Very fast shipping and hope to deal again!!

No this is not fast drying at all. Maybe only fast drying when it is used as a very thin layer.

Seems to have fixed my water pump gasket seep.