Ceramic frits are vitreous compounds, insoluble in water, obtained by melting and quinching in water with the controlled mixture of raw materials. futura ceramics is a reputed glaze supplier in india and middle east from 2004 and with management and technical personnel having vast experience in this field Opaque frit ceramic frit opaque glaze white glaze 606b , find complete details about opaque frit ceramic frit opaque glaze white glaze 606b,frit,phase separation glaze,glaze from ceramics supplier or manufacturer-foshan boer ceramic technique co., ltd. ... refractory and glass to improve their quality and decrease cost. This causes the frits to be more reliable in consistently reproducing glazes. here at the ceramic shop, we carry two different general types of frits in the ferro frit line -- boron and alkaline. boron-based frits are typically used in earthenware glazes when a lead-free glaze is required. China top grade ceramic global semi opaque glaze frit for interior wall tile ys615 ♦ item: china top grade ceramic glazed semi-opaque frit for interior wall tile ys615 related products zibo yishun ceramic pigment & glaze co., ltd is located in zibo city, a capital of ceramics and the biggest manufacturing base of ceramics material.