At 06:11 PM 8/19/2010, neil n wrote: >Dow (Canada) claims their product has excellent moisture resistance. > >http://building.dow.com/na/en/products/insulation/styrospan.htm Any of the cast Styrofoam products will be waterproof. Any sintered pre-expanded-bead product will not. If you want one that's definitely extremely waterproof, get a chunk of the stuff they make for pier floats and similar. Try to find some place that has cutoffs or scraps, as a billet of the stuff is probably $100 or better. To bend a board to conform to wall curvature, kerf it on the inside, i.e. make saw cuts perpendicular to the bend direction that don't quite reach the other side, but have sufficient width that the kerf will just close when the panel is bent to the desired degree. Suggest a few little dots or lines of Liquid Nails (checking compatibility) or similar -- foam will tear off them when you need to remove, and you can then scrape off the adhesive. Or likewise glue on some Velcro strips. Yours, David |
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