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Polyurethane Foam...Where to find?

4 replies
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  • Member since
    November, 2015
Polyurethane Foam...Where to find?
Posted by STOVK on Tuesday, March 28, 2017 11:18 AM

In the April 2017 issue of FineScale Modeler, Marc Grand's article "Construct cathedral ruins" he uses "12-pound urethane foam".

For the life of me, I cannot find a supplier of this stuff!

Does anyone know a good supplier of carving foam which paints well and carves smooth?


  • Member since
    August, 2014
  • From: Willamette Valley, Oregon
Posted by goldhammer on Thursday, March 30, 2017 6:03 PM

Have you tried any big "craft" store like Michaels or Hobby Lobby?  Might even contact Home Depot, Lowes or outlets along those lines.

  • Member since
    September, 2012
Posted by GMorrison on Thursday, March 30, 2017 7:02 PM

You want the blue stuff. It's hard to find, I don't see it at any of the big box outlets.

It's also really expensive about $ 100 for a 24" x 82" x 2" thick sheet.

Whenever I see a chunk on a construction site or in a dumpster I grab it.

A real nice substitute is a product called Balsa Foam. It is available online from Blick's. It costs about $ 12.50 for 9" x 12" x 1" boards. Comes in all kinds of thicknesses.

Obviously thats a lot more per square foot, but it's also possible to buy less.


  • Member since
    November, 2005
  • From: Formerly Bryan, now Arlington, Texas
Posted by CapnMac82 on Monday, April 03, 2017 8:48 PM

The pink XPS available in most home stores is rated to 3200 psi.

But, it really needs to be wire cut for best texture (which will still want sealing.

  • Member since
    November, 2008
  • From: Hatboro, PA
Posted by Justinryan215 on Saturday, May 13, 2017 8:31 PM

If the polyurethane foam is the same as the foam board insulation. local home Depot actually sells a one inch thick,  either 3x3 or 4x4 square for 6 bucks.  That's much more manageable than a 4x8 foot board....

"...failure to do anything because someone else can do better makes us rather dull and lazy..."

Mortal as I am,I know that I am born for a day.  But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the Earth...



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