[DeTomaso] question for the brain trust

[cengles at cox.net]

Dear Larry,

A quick follow up. I checked with the company that makes the aluminized ceramic. They say my idea is not good because a) it ain't been tested for non toxicity in a drinking water situation and b) the coating needs to be polished in order to *seal* it. So that won't work.

The tech expert at NIC Industries said that 3M makes an product that is intended for coating the innards of actual water pipes and containers and such. He didn't have the product name nor number, but a call or email to 3M might be an idea.....

Warmest regards, Chuck Engles




---- Larry - Ohio Time Corp <larry at ohiotimecorp.com> wrote:
> Gentlemen,
>
>
>
> I have a very expensive natural gas hot water heater (city water) in my
> house. It is also used to heat my house.
>
>
>
> It has a stainless (magnetic 400?) tank. After 20 years it is starting to
> leak around the weld points. I find out that this is common, as the weld
> burns the nickel out of the metal and allows it corrode. I have patched it
> up by brazing / sliver soldering the spots I can reach. It has started to
> leak again.
>
>
>
> I have tried everything I can think of from the outside; JB Weld, POR15,
> epoxy putty, fiber glass etc. The 70 PSI from the inside just lifts it up
> till it leaks again.
>
>
>
> I am stripping the electronics and covers off of it to allow me to pressure
> test it in the shop with air.
>
>
>
> Question:
>
>
>
> I would like to seal the tank from the inside. The sealer needs to be able
> to hold up to the heat of the burner, seal well and NOT be poisonous, as I
> drink this water.
>
>
>
> What to use?
>
>
>
> Thanks,
>
>
>
>
>
>
>
> Larry - Cleveland
>
>
>
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