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Your cart is empty.Permatex Moto Seal 1 Ultimate Gasket Maker Grey forms a tough flexible bond that is highly effective on irregular and uneven joint surfaces. Ideal for use on frequently disassembled engines and two and four cycle engines. This solvent-based bond fully seals within 20 minutes. Resists gasoline and other damaging fluids. Withstands temperatures 350 degree fahrenheit continuous, 400 degree fahrenheit intermittent. When a chemical gasket is not an option, Permatex offers a wide range of gasket sealants suitable for applications on both import and domestic vehicles of any model year or performance caliber.
Jesse
Reviewed in the United States on February 1, 2025
Good product works as advertised
DS
Reviewed in the United States on September 15, 2024
This gasket sealer is the only thing you want to use for anything that comes into contact with fuel. (probably oils and greases too) Regular gasket sealant will fail/leak on engine cases or fuel tanks at some point but not this stuff, it will hold up to direct contact with gasoline and other fuels and not dissolve away. I always have some of this on hand.
Zekenoscooter
Reviewed in the United States on February 10, 2024
This stuff is awesome. Don't squeeze it out and spread like peanut butter. Apply a little then brush out with a small brush (throw-away chem brush). Then, miraculously, it self levels as it dries to tacky. If your surfaces are clean and flush, this is the stuff. I wouldn't try and fill gaps or irregularities like you can with RTV (bent valve cover for example). But for assembly of new or machined parts, perfect!And it's gasoline tolerant (very!). I used as intake manifold gasket on a 100cc 4 stroke and ... Poof!!... No more air leaks!Have already bought again! Highly recommend!
mike l driver
Reviewed in the United States on December 14, 2024
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%!
docwong
Reviewed in the United States on November 8, 2024
Helps in sealing parts
Customer
Reviewed in the United States on November 20, 2024
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.
John Spags
Reviewed in the United States on November 2, 2024
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.
AL
Reviewed in the United Kingdom on April 19, 2024
Over the years I have tried many brands, this isnt cheap but the best by far.
Eddie p.
Reviewed in the United States on March 26, 2023
This is very good stuff, I used it on my GY6 150cc scooter crankcase and it has not leaked a drop of oil ,it seals like concrete or something but you can still remove it if need be, but you will love this stuff just a small amount put it on your finger rub it all over whatever it is you're ceiling, this is the first gasket material I have ever used that worked, oil or gas will not go through it you can't go wrong so I gave it five stars, just remember a small thin layer does the trick thank you Permatex.
Customer
Reviewed in Canada on March 25, 2022
Shipping was really fast, and it worked for my engine case on my dirt bike after I split it to repair transmission
FHT
Reviewed in Japan on October 23, 2016
ガソリンホースの継ぎ手部分に使おうと購入しました。金属バンドでだいたい漏れないようにはなっていますが、安心料として使いました。今のところ漏れ無し。しっかり働いてくれています。色が乾いても灰色っぽいので、（私の場合は）黒色なら目立たなくてよかったなぁと、わがままを感じています。
カスタマー
Reviewed in Japan on April 24, 2015
ガスケットの使い方なんて特にないので問題ありません。キャブレターのガソリン漏れの応急処置に使いました。一ヶ月立ってガソリン漏れが再発しないのでけっこうガソリンには強いようです。
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