DIY tank sealer / paint

[frankycee]

Got any ideas if this product would work to seal the walls of a diy plywood tank if applied in 3-4 coats?

I've loked at a few local hardware stores (in Canada) and this is all I can find besides epoxy paint (which is twice as expensive).

Product Info

 

[Tolak]

It may seal it, it may not. The biggest concern would be the product leaching toxins into the water. If it is rated NSF 61/USDA/ANSI/AWWA and FDA certified and
approved it is water safe for coating vessels associated with drinking water, which would make it fine for an aquarium.

There is an e-mail addy in the link you provided, I would try to contact them and ask.

Tolak