On Sat, 14 Jan 2012 10:55:38 -0600, DougC
wrote:

I am making aluminum tanks for my truck's radiator. I am planning on
using 1/8" thick sheet because the reason that none of the plastic tanks
hold up is that they flex and distort.

Not what you're asking about, but do you guys think it would work to
get a plastic replacement and wrap it with fibreglass/ epoxy body
material to reinforce it before putting it into service?

RWL