3M Fiberglass Reinforced Foam

[Chuck Keysor]

Hello! I have not gotten around to cutting any foam yet. Maybe later this year. But I know there is a lot of interest in carving foam with Shopbotters. So I found it interesting to read that 3M has come out with a fiberglass reinforced foam board which they say is structural, and can be used to replace plywood. Here is a link to the article I read on this: http://machinedesign.com/article/a-l...o-plywood-0703

I tried looking on the Internet to see where this can be purchased, and what it costs. But I had no luck, maybe in part because this is something new.

I would be interested to know if anyone has used this, what it costs, how it cuts, and generally how it compares to the more traditional sign carving foams.

Thanks, Chuck

[ron_moorehead]

I found this web site:

https://www.apdmro.com/3M-Polyuretha...am-s/25862.htm

The price they had was $250.00 for a sheet 4 by 8 feet and 1/2" thick at the 26 lbs rating , sounds about like sign board foam and price about the same. Hard to beat plywood at $20 to $30 a sheet