* 1, With very good adhesion, can dissolve much iron oxide in metal surface, makes very strong combination with metal body.* 2, Can be combined with cover coat in high level.* 3, With very good elasticity and compressive strength. Prevent and decrease damage due to mechanical stress.* 4, With less viscosity and surface tension, it's good for escape of gas when firing. Reduce bubbles on cover coat. To ensurethe smooth surface of enamel products.* 5, With suitable expansion coefficient similar as steel plate.Porcelain enamel is a glass of a particular chemical composition and sical nature determined for the surface protection ofmetal.Porcelain enamel frit is a form of glass bonded to metal on a molecular level at high temperature.This results in a typical and unique composite material of glass and metal, which combines the positive qualities of both