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🛠️ Seal it once, seal it right — the ultimate gasket game-changer!
Permatex MotoSeal 1 Ultimate Gasket Maker Grey is a high-performance, solvent-based sealant that fully cures in 20 minutes, forming a flexible, durable bond ideal for frequently disassembled engines. It withstands continuous temperatures up to 350°F and resists gasoline and other harsh fluids, making it perfect for both two and four cycle engines across all vehicle types.

| ASIN | B001REYV9O |
| Best Sellers Rank | #5,293 in Automotive ( See Top 100 in Automotive ) #9 in Gasket Sealers |
| Brand | Permatex |
| Customer Reviews | 4.7 4.7 out of 5 stars (652) |
| Date First Available | November 21, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.45 pounds |
| Item model number | 29132-6PK |
| Manufacturer | Permatex |
| Manufacturer Part Number | 29132-6PK |
| Package Dimensions | 9.25 x 6.5 x 4.88 inches |
E**E
This seals gas and diesel and kerosine if surfaces are properly prepped.
This worked well while installing the on off reserve shut off on an aftermarket motorcycle tank. It dried to a firm gasket and no leaks showed up. It has a 24 hours drying time. It is the consistency of standard RTV. There is not a tapered applicator in this package.
C**Y
Fuel specific sealant that holds up well
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 use If 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.
R**K
GREAT PRODUCT TO HAVE
I use this product on all the engine rebuilds I do on my mopeds engine cases, works great and seals up all and any air leaks.
G**R
Works as it should, be mindful of the consistency.
I used this to reseal the rollover valves in a plastic fuel tank. This sealer in combination with a new oring worked flawlessly. This “RTV” is definitely thinner than your normal RTV, but not so thin it just runs all over.
J**E
Good product
Good product works as advertised
J**N
Good for Small Engines
Used this for a fuel bowl on a small engine carburetor and it has stuck without leaks. I will say it is quite messy and do suggest using a pick of some sort to apply in certain areas that way no sediment gets into your jets but as long as you are careful you should be fine. Easy to use will have plenty leftover since I primarily use it on small engines and for the price it's worth it.
P**7
Good
Used for the case halves on a Yamaha blaster, holding up great to the 2 stroke mix and atf in the transmission
Z**1
A MUST HAVE
GREAT STUFF
K**S
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。
A**L
Over the years I have tried many brands, this isnt cheap but the best by far.
A**R
Shipping was really fast, and it worked for my engine case on my dirt bike after I split it to repair transmission
F**T
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。
Trustpilot
2 weeks ago
2 weeks ago