This a plaster product commonly used for creating terrain. The easiest sources seem to be model railroad stores, since I've yet to find a building supply store that has any idea what I want. The advantage of hydrocal is that it is very strong once it sets up, as opposed to plaster which needs something underneath it to support it even after it dries. Hydrocal needs support while setting but cardboard strips do just fine. Regular plaster requires chicken wire and wood supports for shaping -- it's a lot more work, and a lot more weight. KITBASH Kitbashing refers to starting with one or more commercial kits but assembling the pieces in a different fashion, often adding other material or recutting the original pieces. Modelflex Badger Air-Brush Co. 9128 Belmont Ave. Franklin Park, IL 60131

Trade name of U.S. Gypsum Corporation for a very hard dense plaster. Much stronger than plaster of Paris or patching plaster.

A medium-strength cement used for life casts and nonessential (waste) molds.