Homasote vs pink foam board

[NW Modeling List]

The layout I built now almost 30 years ago was done with Homosote. I will soon be building an extension for a staging yard. It will be built using the same method and materials. I am also building a small N scale layout and will use Homosote on it as well.  It is sound deadening and holds track nails well. Track can be rearranged with ease. Scenery can be glued to it with ease. I have never had an issue with humidity or dampness. I cut it outside so dust is not a problem. If for some reason it must be cut inside, I use a jigsaw knife blade. This eliminates the issue of dust.
I use blue or pink foam for scenic land forms. It is easily cut and shaped. It will melt if exposed to petroleum based paint and glue. It also melts when exposed to heat and produces an acrid odor.

Subject: Re: Homasote vs pink foam board
Date: Thu, 8 May 2014 06:44:34 -0400
To: nw-modeling-list at nwhs.org
From: nw-modeling-list at nwhs.org

Perhaps I missed it in the flurry of email on this thread, but I’ve not seen mention of sound. My limited experience is that trains are noisy running on foam. Perhaps scenery and other coverings will help diminish the apparent amplification properties of rigid foam.
Ross HunterOrange, VA
On May 7, 2014, at 7:10 PM, NW Modeling List <nw-modeling-list at nwhs.org> wrote:I have always wondered if the foam board presents a fire hazard?

Tom Lewis
On May 7, 2014, at 8:30 AM, NW Modeling List <nw-modeling-list at nwhs.org> wrote:

Warning on Homosote – EPA has declared homosote dust a breathing hazard, WEAR A MASK!  Second homosote does swell up and expand causing uneven areas, it must be sealed on both sides.If using foam it is best to remove the plastic sheet for the glue or adhesive to adhere. Also remember that white glue is water soluble as yellow (carpenters) glue is not. Good to know when you later add scenery and ballast.Hope this helps,Stephen Rineair From: nw-modeling-list-bounces at nwhs.org [mailto:nw-modeling-list-bounces at nwhs.org] On Behalf Of NW Modeling List
Sent: Tuesday, May 06, 2014 6:09 PM
To: NW Modeling List
Subject: Re: Homasote vs pink foam board John

Homosote is becoming a rarity in use for layouts.  It is scarce and hard to locate.  Either pink or blue foam board is preferred, especially when using a 1/4" plywood base.  The nice thing is that you can use foam board glue applied with a caulking gun to build your base and scenery.  1" foam board is more versatile to use and easily cut to build your scenery.  You can laminate different thickness to get to the height you want.

Larry Smith 

On 5/6/2014 2:06 PM, NW Modeling List wrote:Hi modelers,                 After being away from layout building for 20 years I’m ready to get back in.  I’m looking for advice on whether to use Hoamsote or pink foam board.                 I bought Seivers 48” modules in 16” and 18” widths.  Either way I’m planning on using a ¼” plywood layer.  If I go with the foam should I use the 1” or the 2” foam?  The layout is in a bedroom here in Southern California so it doesn’t get under 65* and rarely over 95*.  I’m using the plywood for mounting the turnout controllers.                 While on the subject of turnout controllers I’m having a time deciding on either the PPW/Aline “Blue Point’s” or Fast Traxx Bullfrog’s.  Any pros or cons on either? Thank you in advance,John Hecker   ________________________________________
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