Nolifrit royal blue cover coat enamel coating ecf-309 product description: 1, it has good opacity and glossiness, fine surface. 2, itu2019s of good physicochemical properties as acid resistance,... transparent enamel frit ecf-303 for steel enamel cookware Manufacturer of enamel fritscover coat enamel frit, acid and alkali resistance frit, ground coat enamel frits offered by sahaj cerchem private limited, new delhi, delhi. indiamart get best u2026 They can be used separately or mixed with other ground coat frits according to different firing temperatures. the firing temperature of cover coat frit is lower than that of ground coat frit. we produce nearly one hundred of enamel frit, rtu(ready to use) u2026 There are a range of cover coat frits suitable for various applications. transparent u2013 for coloured cover coats with addition of enamel pigments. opaque u2013 superior quality white cover coat. can also be used to obtain pastel colours with addition of enamel pigments. border blue u2013 blue frit for coating the edges of hollow-ware.