A white frit for white, opaque glazes. 1650u02daf fb-268-d zircon lead free frit. 1750u02daf fb-276-p well balanced clear frit for colors at cone 06. 1650u02daf fb-284-m 3289 with zircon to decrease solubility. barium source used for bright colors at cone 05 to cone 03. After 70 different frit compositions tried, 25% reduction of both zircon and zinc oxide in frit batches with respect to the r one containing 6u201310% zro 2 and 6u201310% zno was achieved with the zd frit consisting of 4.5u20137.5% zro 2 and 4.5u20137.5% zno . 27 such reductions were done by only modifying the frit original chemical composition with no other nucleating agent incorporated for u2026 Lk4136 1010-1200 195 740 titanium opaque w ater-proof engobe frit, suitable for wall and floor tile in single or double firing. lk4138 1080-1190 191 810 titanium opaque w ater-proof engobe frit, suitable for wall and floor tile in single or double firing. Alibaba offers 819 zircon powder for ceramic products. about 10% of these are refractory, 2% are ceramics. a wide variety of zircon powder for ceramic options are available to you, such as grade standard, shape, and type.