The most fool proof way to mix dry plaster powder with water is to weigh them. Once the mold is in place and well supported, coat the mold with mold spray (see requirement 3). Try to get the mold as level as possible. ![]() Place the mold on top of it and press it into the support, wiggling it around until the support conforms to the shape of the mold. Squeeze as much air out of the bag as you can, and then lay the bag flat on the work surface. This support base can be as simple as a sealable plastic bag filled with uncooked rice or sand. Plastic molds generally cannot support themselves once they are filled with wet plaster, so you must prepare a support base to set them on. Give the steps in pouring a plaster item and preparing it for painting. Plaster of Paris is based on calcium sulfate which is derived from gypsum.Ģ. What is the principal ingredient of plaster of Paris? Mold and paint two additional items of different designs.ġ. Religious motto to show letter highlighting Paint three items that will include the following designs and techniques or equivalent: a. ![]() ![]() What type of paint is best to use on plaster craft items? When is a sealant applied to a plaster item and why? What precautions should be taken when cleaning the mixing and pouring equipment? Know how the setup time can be increased or decreased for plaster. Know how to remove air bubbles from a poured item.
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