Blue Gasket Silicone
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=175551
Printed Date: 08 Sep 2025 at 6:34pm
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Topic: Blue Gasket Silicone
Posted By: john(MI)
Subject: Blue Gasket Silicone
Date Posted: 28 Oct 2020 at 11:11pm
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Is it resistant to gas? I broke the fuel gauge on my mower where it goes in the tank. I thought I would run a bead of that under the top and stick it in the tank. If it ain't resistant to gas what can I use? ------------- D14, D17, 5020, 612H, CASE 446 |
Replies:
Posted By: Dave H
Date Posted: 29 Oct 2020 at 5:53am
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without experience in that arena and not having a grip on exactly your application, I would lean to JB Weld before the blue. |
Posted By: Lars(wi)
Date Posted: 29 Oct 2020 at 5:59am
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As long as it’s not submerged in gasoline you may ‘ get by’ with it. You would have better luck with a product specifically made for constant contact with gasoline. ------------- I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science. |
Posted By: Kansas99
Date Posted: 29 Oct 2020 at 6:22am
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Interesting, I would have said yes it'll work but I looked and didn't realize oil resistance and gas resistance are 2 separate things. From Permatex web sight John. Can I use the Permatex® Ultra Blue® RTV to seal a gas gauge-sending unit to a gas tank?
Posted on: February 18th, 2016
No, Ultra Blue® is a silicone-based product, that will offer a good seal, and has good resistance to oil and coolant, however, silicones are not recommended for use in a gasoline environment. The gasoline will attack the product. Permatex® offers the solvent based Form-A-Gasket® products or https://www.permatex.com/products/gasketing/permatex-motoseal-1-ultimate-gasket-maker-grey/" rel="nofollow - MotoSeal® #29132 that are designed for applications in a gasoline environment. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: Ted J
Date Posted: 29 Oct 2020 at 7:47am
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I didn't know they made such a product. THANKS Kansas! I'm gonna have to get some of that. ------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17 |
Posted By: darrel in ND
Date Posted: 29 Oct 2020 at 8:55am
| That's a new one to me, too. Good piece of information to have. Thanks Kansas. Darrel |
Posted By: john(MI)
Date Posted: 29 Oct 2020 at 9:04am
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Thank you for the help guys. A wealth of information right here! Picked some up and put it on. Said it's supposed to be set in 20 minutes so I just left it alone and went and cut up a tree. Next time I use it I'll check it out.
------------- D14, D17, 5020, 612H, CASE 446 |
Posted By: Kansas99
Date Posted: 29 Oct 2020 at 10:23am
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The crazy part is that guy in 2016 had the same question as you John. I think in all my searches for answers I've never seen the exact question asked by someone else.  ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: Kansas99
Date Posted: 29 Oct 2020 at 10:24am
Yep first time I've ever heard of motoseal too. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Ted J wrote:Posted By: Adam Stratton
Date Posted: 30 Oct 2020 at 8:33pm
| There is also a product called Seals-All that is gas resistant I've had decent luck with |
Posted By: allisrutledge
Date Posted: 30 Oct 2020 at 8:39pm
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I use instant gasket by loktite, ------------- Allis Chalmers still exist in my mind and barns |