Factory direct sale majolica glazed enamel frit from hunan noli enamel frit is a form of glass bonded to metal on a molecular level at high temperature. our main products of enamel frits including ground coat, cover coat, transparent frit , matt enamelu2026 Free sample good quality majolica blue cover coat enamel frit , find complete details about free sample good quality majolica blue cover coat enamel frit,majolica enamel frit,majolica blue enamel frit,factory directly free sample majolica blue cover coat from supplier or manufacturer-hunan noli enamel co., ltd. Enamel coating. coat enamel powder or slurry evenly on the metal body, after firing, coat cover coat on ground coat. coating ways can be dipping, pouring, spraying and bepowdering. bepowdering is to sprinkle cover coat enamel powder to red hot ground coat, which makes coating and firing one process. Majolica frit. general usage: it is a special fresh majolica cover coat frit, including brown/green/purple/blue color, can be applied to cast iron enamel cookware.