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Originally Posted by redleader
^^ I'm pretty sure thats going to crack if you put reasonably cold water into it. How low can your chiller go?
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That's an excellent point.
The thermal expansion properties of this product, if it's the only adhesive used, would have to match that of the building material, otherwise it could peel right off of the box, causing a leak.
Very hard to pick a good adhesive.
In this case, I'd go with an adhesive first, i.e. weld-on#4, which would make a chemical bond between acrylic or polycarb materials, then coat it.