Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4Â-2H2O.
Crystal varieties
Gypsum from New South Wales, Australia ...
Gypsum parts look like new concrete, plastic parts are unpainted
Gray plastic
Weathering abilities: ...
Gypsum
Calcium sulfate used to make molding plaster, Hydrocal, and Plaster of Paris. These products are commonly used in model railroad scenery projects.
Hydrocal - U.S. Gypsum Corporation's trade name for its lightweight and very dense plaster.
...
Gypsum (USG Corp.), Hydrocal plaster's biggest advantage is its strength. Paper towels dipped in a soupy mix of Hydrocal and applied to a structure of balled paper or interwoven cardboard strips make a remarkably strong scenery shell.
A hard, quick-setting plaster often preferred for model railroad scenery and made by U.S. Gypsum.
SEARCH THIS SITE
This icon denotes premium subscriber content. Learn more " ...
Ground Through - A mechanical device (usually done manually) which will change the position of a turnout, and simultaneously change the position of the signal mounted on top of the ground through.
Gypsum - Calcium sulfate used to make molding ...
 See also: Track, Engine, Standard, Scenery, Rail
  
|
RSS
