... heat surface directly. Therefore, it solves the problem of heat sensitive materials carbonization and color changing. As the ... pigment, butyric acid, titanium hydroxide, zinc sulfide, all kinds of intermediate of azo dye-stuff. Inorganic compounds: borax, calcium carbonate , ... ferric oxide , barium carbonate , antimony trioxide, all kind of heavy metallic salt, synthetic cryolite and so on. Ceramics: ...