wrote in message

On Tue, 15 Oct 2013 19:37:53 -0700 (PDT), Higgs Boson
wrote:

Nate: Afterthought. Would the Bondo still "suck in
water" if covered with 1 coat primer & 2 coats paint?
Or do you mean during process of applying Bondo to
eroded spots?

HB
You do NOT want to use regular polyester filler on
concrete. Epoxy or vinyl-ester resin and chopped
fiberglass might work though.

Or fumed silica (as a filler). Brand names are Cab-o-Sil and Aero-Sil.
Mixed with epoxy to the consistency of Vaseline or peanut butter. Sets up
hard and clear. UV degrades epoxy so needs to be painted.

Good supplier of resins, fillers, etc...
http://www.uscomposites.com/


--

dadiOH
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