This results in a typical and unique composite material of glass and metal, which combines the positive qualities of both materials. our main products of enamel frits including ground coat, cover coat, transparent frit , matt enamel, direct on black frits and various cast-iron frits. All prices are manufacturer's suggested list price in u.s. dollars. the price you pay at your local supply outlet may be different than the manufacturer's suggested list price. these prices supersede previous prices and are subject to change without notice. these prices do not include shipping. any sales tax applicable will be added to the prices. Alibaba offers 1,988 enamel frit products. about 75% of these are other inorganic chemicals, 14% are ceramics, and 1% are pigment. a wide variety of enamel frit options are available to you, such as industrial grade, food grade, and electron grade. The enamel frits are applied onto the metal surface in one or more layers, heated to a temperature sufficient for fusion. it is used for coating carbon steel and cast iron material products. main advantages are being resistent to corrosive environments more specifically than another, high-temperature oxidation and thermal shock.