Permatex29132 MotoSeal 1 Ultimate Gasket Maker Grey, 2.7 oz.

Great product, completely fuel proof once cured.To be very clear this product is very thin, just a tad thicker than dish soap. So prepare surfaces accordingly and be ready for drips.Great sealant and does cure to be soft and fairly flexible.I had cleared out a through hole a bit oversize when replacing the fuel line for a leaf blower. added some of this and was able to seal right up. If there is any gap, you want to block with something until it cures, washer, cardboard, clay, etc. Anything to stop it from flowing away from where you want it to be. I 3d printed something for my needs, but that is a bit overboard for normal useIf using it on a gasket, would hold and seal well without issues, will not be thick enough to flow anywhere.Tacky enough to hold item in place while horizontal. If vertical would need to be clamped.

Worked good as described

Best sealant for 2 cycle equipment

Product is the best for gas pumps. It will seal for many years.

Good product works as advertised

I use this on 2 stroke restorations mainly during full engine rebuilds. Especially when customers drop off 1 engine in multiple boxes they tend to make dings and scratches in the sealing surfaces. So I rub a thin coat on both sides of the gaskets' works perfectly. I do recommend shaking the tube for a few minutes before using or it will be runny. I always keep a tube handy even at the track just in case.

Had a gastank mounted carburetor on an old school 5hp briggs&stratton motor.Would not stop leaking with a gasket,I coated both sides of gasket &tank&carburetor bottom,no more gas leaking.fills low spots to seal 100%!

It goes on a bit thinner (if you want it to) than their regular RTV form a gasket. I used it to keep the little gaskets on my lawn tractor carb on. It also eliminated an air leak that was causing rough idle without this on it. Happy I tried it.