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Building Tips and technical articles. => Building techniques => Topic started by: David_Stack on March 04, 2013, 05:40:11 AM

Title: Blue foam for building surface?
Post by: David_Stack on March 04, 2013, 05:40:11 AM

Good Morning All;

Don't have access to a search button via mobile, so please forgive the possible redundant question...

Has anyone tried to use a sheet of blue foam insulation as a building surface (atop glass, etc) as an alternative to wallboard, celotex, ceiling tile)? Are they flat/true enough?  Seems they would be firm enough to hold pins, and not prone to breakind down/creating debris like the aforementioned.

Thank you in advance,

Dave

Title: Re: Blue foam for building surface?
Post by: Will Hinton on March 04, 2013, 05:53:03 AM

Hi Dave,
I have a building board I constructed in honeycomb style and glued blue foam to it.  I've done three stunters and a scale with it and all has been fine.  I really like the consistence of the foam for pins, etc.

Title: Re: Blue foam for building surface?
Post by: Bill Little on March 04, 2013, 07:43:11 AM

Hi Dave,

I have a 2'X4' piece of blue foam I tape to my glass table top when I need to use pins.  It's basically the size I need to build the Brodak Warbird wings.

BIG Bear
RNMM/AMM

Title: Re: Blue foam for building surface?
Post by: Ed Neuzil on March 04, 2013, 10:23:28 AM

I use 1/2" cork from McMaster-Carr. Cork doesn't dent like foam can.

Title: Re: Blue foam for building surface?
Post by: Paul Wood on March 04, 2013, 11:27:23 AM

I also tried the blue foam and did not have much luck.  It will hold a pin if you just stick the pin into the foam, but when I tried to actually pin a piece of balsa, I found that the pin tended to wallow (sp?) a hole in the foam.  Never could get a firm hold in the foam.  I went back to the ceiling tile.

Paul