Aluminum Gas Tank Leak

[jpswift1]

I noticed on my Hustler aluminum gas tank that there is a leak, which I believe is coming from where it is welded. Does anyone know if there is any sort of thing (such as a sealer) that I could put on there that would stick to aluminum and be resistant to the gas? The aluminum is really thin and I wouldnt want to weld it because I'm afriad that it would burn right through and I am not very good at welding aluminum either. Any help would be appreciated. Thanks.

[artist1018]

Tank repair

Try Harbor Freight, they have good puttys available. Also, they carry aluminum tape in a large size(similar to duct tape), it might be a good thing to carry in your tow vehicle for emergency use!!

[x.l.r.8]

you can buy braizing welding rods for ali, it's not as hot as welding, infact you use a plumbing blow torch. or a 2 part adhexive liek araldite works, but I would try the rods as you don't need them to hot, or even solder?.

[REB181]

Tank sealing

you can get this at most dirt bike shops It's called a tank bladder seal kit
It's a liquid you pour in the tank and coat the inside drain the rest out let dry 1 day and it's sealed be sure to take off the fuel valve before useing sealer
I used this on my ATC a few years ago and no leaks I think it's about $20.00

[techfx]

In the search for repair ideas for my RIM/Scrambler fuel tank... Reb, would you think this bladder seal kit would work with a plastic tank?

[trebmaster]

Aluminum Repair, Iron/Steel Repair, HTS-2000 & HTS-528 Brazing Rods ? AluminumRepair.com

this stuff is awsome and yes it is low heat melt with a propane torch

[twinke00]

use this Q-Bond Adhesives Its called q-bond it works on everything. it comes with a black plastic powder and aluminum powder and ca glue. i use the aluminum powder for everything holds up to gas and heat. all u have to do is sand the area put some powder on and a drop or two of glue in 10 seconds it turns hard as a rock. I have fixed gas tanks, intakes, even patched a hole in an engine block. check it out

[lewis]

732 silicon adhesive/sealer, i am thinking Dow Corning. Fixed a puncture in my gas tank with it. Never leaked again.

[wildtexasranger]

Marine Tex, epoxy resin, adhesives, silicone grease, engine treatment, cleaner, repair, bond, fill, seal, fiberglass, aluminum, plastics, Starboard, wood Have used this stuff many times JP it will do the job !!!!!!!!

[Tango42]

Here's another possibility.....

EW Gas Tank Sealer One Pint 16 oz

[famvburg]

There's an aircraft fuel tank sealant known under various names such as Chem Seal & Pro Seal. It's a 2 part rubbery putty that comes in different colors & thick & thin consistancies. It's obviously made for use with aluminum & is used on aircraft for more than just sealing fuel tanks. I call it a flexible JB Weld 'cause it's pretty versatile. There are also sloshing sealers available. Here's a link to a few.
Pilot Supplies, Avionics, and Homebuilt Aircraft Parts from Aircraft Spruce and Specialty Co.

[Roger S]

I've bought that low temp rod before at the fair.. not used it yet. The guy demo'd it by filling in a hole in a pop can, so it does work on thin stuff. Not cheap if you have to buy a bundle of it though.

A bar of soap rubbed on a gas leak will seal and last quite a while, unless it gets washed off.