11/30/2023 0 Comments Plaster of paris vs joint compoundI have found Casting Plaster to be the best, because it doesn't crack as it dries, and it cures in 20 minutes or less. This can be seen on the Cochise & Western Model Railroad Club's layout (). In the first method, I used the styrofoam blocks out of computer boxes or similar items, glued together with caulking compound, and then covered with an old towel, blanket, or whatever, for a very large mountain. Cutting the mix with sculptamold makes it harder when dry and goes further.Ī much better alternative for mountains today is styrofoam. and you have to watch if wettness from coloring is applied. Long drying time until coloring can begin. Expensive compared to plaster.Ĭelluclay- long time setting, but can almost immediately begin carving and it holds its shape. Sculptamold- probably the best and most workable. Plaster- works fine, but not much time to carve before it gets hard. easy to work with, but gets soft if spraying on colors or if it gets wet from set color applications. Textured (sand) paint, mixed thin and painted on several times. I'll share them.Ĭardboard webbing with industrial paper towels dipped in think mix of starch.Ĭardboard webbing with contractors red resin paper, painted with starch.Ĭardboard webbing with plaster soaked paper towels.Īll of these give the same base results. I have been experimenting with all types of "mountian making" techniques. If it is like that, then maybe it will hold up. Woodland Scenics has a lighter compund that they claim won't crack or shrink. One thing to evaluate is the amount of shrinkage and then cracking that may occur later, if there is any.
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