Gas-resistant sealant?

[RatLabGuy]

The return vent fuel line on my 93 Toy p/u is weeping right at one of the retainer clamps, I'm sure after 28 years of rubbing in the same spot + rust its got a pinhole.
It's not under pressure and only weeps a little while sitting. I know what's going to happen when I try to repair it properly... every movement of the line will cause a new leak and the whole line will need replacing (thats what happened last summer with the main supply line).
I need a temp fix just so it doesn't smell awful in the garage while fixing the brakes.

Is there any kind of goop - probably spray on...? - that would coat it and temporarily seal it up until I can fix it properly? Normally I'd just use a shot of spray on bedline or something but most things won't cure right with the gas touching it....

 

[Chris_M]

Permatex® Aviation Form-A-Gasket® No. 3 Sealant Liquid, 16 OZ | Permatex®

www.permatex.com

 

[Shreddinlettuce]

Permeated Type 2 at orielys next to the rtv I paid around $6 for a lifetime supply not too long ago

 

[Shreddinlettuce]

https://www.autozone.com/sealants-glues-adhesives-and-tape/sealant/p/permatex-2-form-a-gasket-sealant-slow-dry-non-hardening-3-oz/526681_0_0?cmpid=LIA:US:EN:AD:NL:1000000:GEN:10574827360&gbraid=0AAAAADkcoVvF2LYlvp1HEqNCEMXXWK63B&gbraid=0AAAAADkcoVvF2LYlvp1HEqNCEMXXWK63B&gclid=EAIaIQobChMI9NnL-tf8-wIVQsmGCh2UhwzvEAQYAyABEgKd6fD_BwE&gclsrc=aw.ds

 

[YJJPWrangler]

yup, I'll echo @Shreddinlettuce thats what Motobilt recommends for its fuel cells. isopropyl alcohol will take it off your hands when your done.

 

[RatLabGuy]

Thanks.
Will that cure while in direct contact with gas?

Like in the flex seal commercials...

(and no flex seal doesn't work w/ gas... I've tried before...)

 

[RHSCTJ]

Had a car come in the shop last week with a hole in the gas tank from hitting something in the road. Fire department used a wax ring for a toilet to plug the hole. Apparently they keep a bunch of them on the trucks for that.

 

[JSJJ388]

Had a car come in the shop last week with a hole in the gas tank from hitting something in the road. Fire department used a wax ring for a toilet to plug the hole. Apparently they keep a bunch of them on the trucks for that.

Actually yea we do. We keep a couple on all the trucks. Work well to seal up, well anything nearly.

 

[tobaccoroad4wd]

Had a car come in the shop last week with a hole in the gas tank from hitting something in the road. Fire department used a wax ring for a toilet to plug the hole. Apparently they keep a bunch of them on the trucks for that.

We had a tractor get side swiped yesterday and crushed his fuel tank. And that’s what they used to stop the fuel leak. Crazy.

 

[Caver Dave]

Thanks.
Will that cure while in direct contact with gas?

Pretty sure that (Permatex #2) will NEVER "cure"
Have removed stuff that's been together for 6+ decades and it's still gooey...

The only plus is it's "slightly less" messy than nickel anti-seize

 

[Caver Dave]

And FWIW, I used this years ago (pre-cell) to stop a couple of dripping pinholes...

Amazon product ASIN B008VK0JS4