Glazing & Firing forum: ceramic tile colors

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Jan 10, 2014 9:32 PM CST
Inclusion Red Pigments may solve the problem that cadmium red pigments can not resist high temperature,they are distinguished by their chemical and thermal stability. This ensures both a high level of production safety and excellent end-product profitability.

Below 1250 ℃, our inclusion stains are very stable. Most of our customers use inclusion stains at temperatures from 1030℃ to 1230℃. Other customers use them well at 1280-1300℃ with reducing atmosphere. Inclusion stains have good adaptability for frits (transparent, opaque, and matte). Generally speaking, they behave best in transparent frits at lower temperature, while in opaque or matte frits, the coloring strength is comparatively weaker. We usually test our stains at 1030℃ with transparent frits and at 1230℃ with matte frits. With transparent frits, the color and brilliance are easily determined while with matte frits the coloring strength is easily determined. So normally we test our stains with transparent frits; we use matte frits in case the coloring strength is not easily determined.

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