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View Full Version : 3M Fiberglass Reinforced Foam



Chuck Keysor
02-12-2013, 09:53 PM
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-lighter-alternative-to-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
02-12-2013, 10:29 PM
I found this web site:

https://www.apdmro.com/3M-Polyurethane-Reinforced-Foam-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