Fine Casting Plaster of Paris - Superior Plaster Plus Powder We sell Fine Casting Plus Plaster, a general use plaster with a better working consistency than normal Fine Casting Plaster. This plaster can be used for many applications, is easy to mix up and simple to use. The particle size makes the setting time quick and regular with a low expansion %. Perfect casting powder for all types of crafting Easy mixing Perfect for figurine moulds High quality blend of plaster Can be painted. Picks up the fine details of the mould, body casting in conjunction with alginate, fridge magnets, tealights, sculptures, ceiling roses and many other creative projects. Made by Jarvis, each of these bags contains 1kg of plaster of Paris in powder form.