Precision casting moulding materials not only guarantees the performance of stainless steel casting dimension precision, also can ensure the casting surface finish, high strength, light weight of the casting, it shall be the type of shell manufacturing and create conditions for good castings.General pattern material (wax material, natural resin and plastic (resin).Waxes for all major material preparation material called wax pattern material base model, their low melting point, is 60 ~ 700 c;Who mainly use natural resin dispensing mode called resin base model material, high melting point, about 70-1200 c. The configuration of the mould material:Precision casting preparation is the mix of mold material of all kinds of raw materials into a uniform, and the state in accordance with the pattern material (casting requirements.Mainly use the method of heating make when making up all kinds of raw materials to melt blended, and then in the case of cooling, violent mixing pattern material, make mold material paste state for moudle suppression.Sometimes will melt into liquid directly pouring molten pattern material model.