home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!das.wang.com!ulowell!m2c!nic.umass.edu!noc.near.net!hri.com!spool.mu.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!csn!news.den.mmc.com!iplmail!dans
- From: dans@iplmail.orl.mmc.com (Dan Sullivan)
- Newsgroups: rec.models.railroad
- Subject: Re: Has anyone used foam for roadbed?
- Message-ID: <1993Jan26.202446.6618@iplmail.orl.mmc.com>
- Date: 26 Jan 93 20:24:46 GMT
- References: <1993Jan26.155252.3355@mcs.anl.gov>
- Sender: dans@iplmail (Dan Sullivan)
- Organization: Martin Marietta
- Lines: 29
-
- In article <1993Jan26.155252.3355@mcs.anl.gov>, winans@xray.aps.anl.gov (John R. Winans) writes:
-
- |> This stuff is pink and is NOT styrofoam. I think it has a silver
- |> foil on one side and has the consistancy and strength of the expanding foam
- |> that is marketed under names like "Great Stuff" and "Mountains in Minutes".
- |>
- I've started using something similar, called "foam-core". It's
- basically foam sheeting covered on both sides with thin cardboard.
- Sold in art supply stores, it comes in 1/4" and 3/8" thickness. It's
- inexpensive (4x4 sheet for $4) and cuts easily with a utility knife.
-
- The nice thing about it is that the cardboard surface holds the
- foam together, eliminating the "fuzz" problems of styrofoam, and
- also provides a nice, smooth surface to glue the track/ballast to.
- Here in Florida, we frequently have high humidity, and I am concerned
- that Homasote would cause problems. The foam-core is much more
- resistant to moisture.
-
- I have been using it on top of 1/4" plywood for my roadbed; it's
- very stiff but the 1/4" foam-core is a little flimsy to support
- track by itself.
-
- Dan o
- ____ o o
- Dan-Sullivan@orl.mmc.com (_/\_)o
- Martin Marietta Electronic Systems ()=o
- MP 1160, Orlando, FL USA
- "You keep using that word. I do not think it means
- what you think it means."
-