Perc® powders – perc® is porcelain enamel powder applied dry electrostatically and offers automation and efficiency required in modern mass production. the powder is charged and sprayed on the steel parts. there is no waste water in the coating process. over sprayed powder is re-circulated back to the feed hopper, making powder 99% efficient. 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. 4. Industrial enamel cover coat frit: it is a anti-acid industrial enamel cover coat frit, very strong acid resistance, corrosion resistance, specially for enamel reactor. industrial enamel grount coat frit: it is a anti-acid industrial enamel ground coat frit, very strong acid resistance, corrosion resistance, specially for enamel reactor. Frits are the basis and main component of an enamel coating. each pemco® frit is individually designed to address the complex variables of chemistry and end use application. quality raw materials are blended and melted to create a frit technically adapted for different applications.