Stainless Water Tanks - Glassing with Epoxy ?

[lateral]

On cleaning my water tanks of what appears to be tea-staining of the stainless I noticed some pitting where the tank had been supported by
a rubber pad. Blasted it with with garnet and pinholes appeared!
I am contemplating T.I.G.ing up the pinholes ang glassing the tank with
epoxy& 1 layer of 6oz. I would use hi-elongation epoxy and dynol. Anybody done this? I realise I am cutting off the O2 supply to the stainless, but it is definitely cheaper than having a new tank made.
Cheers.

[DeepFrz]

Questions you might want to ask yourself; is cheaper better in this case, is it almost as good, or is it far inferior to doing a proper job?

[lateral]

Damn! Why can I never bend the truth?

[sdowney717]

PL premium polyurethane construction adhesive would be a quick easy simple long lasting fix. Just trowel it on, fill the pin holes. If you want you can embed glass fabric. it will be 100% waterproof durable fix. this adhesive expands as it sets and is moisture cured. it is also gasoline proof.

[DeepFrz]

Is it safe for potable use?

PL premium polyurethane construction adhesive

Edit: from loctite web site.

Not Recommended For

* Water submersion applications

I would think using it on a potable water tank application would rate as "water submersible" application. I wonder what nice chemicals it would add to the drinking water?

http://www.loctiteproducts.com/msds/PL_CA_PREM_msds.pdf

[sdowney717]

works under water, never had any trouble with it. caulked an entire wood boat using this.
does not seem to have any odor or taste. seems inert after cure.
I have repaired copper pipes by squeezing the crack shut, saturate glass cloth wrap around the pipe.

Personally I would have no problem sealing any tank except hdpe tank. I sealed up a waste holding tank. Made it with plywood. smeared it all over the inside using notched trowel followed by a smooth trowel.

alternatively look at DIY Wet Basement Waterproofing, Finishing & Flooring, Swimming Pool, Deck & Concrete Crack Repair, Roof & Industrial Floor Coating
advertised as potable and food safe coating. I have used sanitred permaflex extensively and it lives up to its claims

[sdowney717]

works under water, never had any trouble with it. caulked an entire wood boat using this.
does not seem to have any odor or taste. seems inert after cure.
I have repaired copper pipes by squeezing the crack shut, saturate glass cloth wrap around the pipe.

Personally I would have no problem sealing any tank except hdpe tank. I sealed up a waste holding tank. Made it with plywood. smeared it all over the inside using notched trowel followed by a smooth trowel.

alternatively look at DIY Wet Basement Waterproofing, Finishing & Flooring, Swimming Pool, Deck & Concrete Crack Repair, Roof & Industrial Floor Coating
advertised as potable and food safe coating. I have used sanitred permaflex extensively and it lives up to its claims

[capttman]

JB weld epoxy for stainless lasted as long as I owned my last boat, just saying