In Dave Frary's DVDs on scenery, he advocates the use of Gypsolite for bases. Unfortunately, the product is not available in my area. Does anyone know of a similar product oR substitute for Gypsolite?
RicZ
You could order it from Scenic Express.
Or, try your local big-box hardware store - Home Depot, Lowes or Menards. You'll have to buy a 50-pound bag, but that won't cost you much more than the 8-pound container from your LHS. Just keep it dry.
It takes an iron man to play with a toy iron horse.
I have a product called Structo-lite. Got it at my local hardware store (don't have a big box store near by). They ordered me a 50# bag. I believe it is the same product, just a different manufacturer.
Good luck,
Richard