Lost wax casting believe we all know that we'll give the casting in the casting process for coating processing, so the time lost wax casting foundry coating process on the performance of the coating is there any requirement?About the lost wax casting coating performance requirements, in the production of precision casting coating shall meet the following requirements:1, have high refractoriness, and chemical stability, at the time of casting by high temperature melting metal or react with metal oxide, formed chemical adhering sand; 2, have good smearing and adhesion, can compact homogeneous smearing in the foam model surface; 3, the coating has good strength and stiffness, makes the model in the process of handling and box will not be damaged, can keep the model deformation after drying, when casting can withstand the sand due to evaporation model and back pressure; 4, lost wax casting coating has good permeability, can with pouring on the surface of the liquid metal, the air inside the cavity, smoothly from coating sand mold wall exhaust to the outside of the type.