Mar 13, 2013 · part of that engineering involved how the windshield is bonded to the frame. you may have also noticed the black band along the periphery of the windshield, this is called the frit. the frit is a black enamel band that is literally baked into the edges of the windshield glass, accompanied by the border of black dots you are wondering about. the purpose of the frit is to Saudi arabia newit co.,ltd. is a high-tech enterprise consonant with the national industrial policy, which specializes in research & development, manufacturing and sales of high quality enamel frits and granular boron fertilizer and other chemical materials. Buy the quality and highly effective ceramic glaze frit, ceramic raw material, frit glass, enamel frit, glaze ceramic, ceramic glaze powder, glow ceramic glaze, china glaze, glaze powder for ceramics, ceramic frit glass with our professional manufacturer and supplier. we can also offer you the customized products with competitive price. Hunan noli enamel co., ltd is the leader manufacturer of enamel frits & inorganic pigment in china. now we have 30,000 m/t enamel frits and 2,000 m/t inorganic pigments annual capacity, and 10,000 m/t rtu(ready to use) powder and electro static powder.