To work with plaster casting, plaster mold must be dealt with appropriately, first dry the plaster mold brushing twice shellac bubble (bubble force of water) to the surface of the porous gypsum blocking treatment. In turn, when the system must also be brushing release agent, so pour the plaster to stick together and do not die, the release agent with a soft soap, ordinary soap, vaseline and oil, etc., Vaseline and oils soft soap no good water . Vaseline is too thick, it will affect the sophistication of the mold, plaster mold of European specifications, Vaseline oils also easy to dirty gray smoke, affecting the quality of the work. Soapy practice - soap sliced, placed in water heated to melt and serve. Several simple molds to produce several pieces made with plaster. Gypsum powder and water in a ratio of approximately 2: 3, Hanzhong plaster molds, too much water, the fastness of solidified poor; if you need strength, they put plaster of Paris. Since the plaster has been condensed into a solid is unusable, gypsum from the liquid condenses into solid steel plaster mold, there are time constraints, when located in the plaster mix, forming firing from the beginning to the action must be swift, but also To estimate in advance the amount of good plaster, you need so many mixed. Gypsum and gypsum products, there is a common characteristic - extremely absorbent, store not too long a time. Because there is always more or less moisture in the air, especially in the rainy season and apricot, gypsum powder in the water will increase, plaster mold factory, its quality to be poor, and this will reduce the fastness it solidified, speed up the time it condenses, marinated became lumps of less than a few minutes, in the end, gypsum will not condense. In order to grasp and use good plaster, you must first understand its nature, gypsum powder is made from mineral quartz - gypsum ground after roasting, the gypsum powder in some major cities can buy building materials stores, but in Rural small town not necessarily be able to buy, but to their processing. Processing methods are: the gypsum is crushed with a mill, the more detailed the better, and then placed in a pot roasting, fried side while burning, can burn about 800 degrees, it's not ready to buy a good quality. Qujing plaster mold plaster mold _ _ ARTEL plaster mold manufacturers to provide the Gaomi Artel plaster mold factory. Qujing plaster mold plaster mold _ _ ARTEL plaster mold factory is Gaomi Artel plaster mold factory (www.htsgmj.com) (www.htsgmj.com) this year introduced a new upgrade, the above picture is for reference only, please dial this Tel pages or pictures on obtain the latest information, contact: Du Jingli.