You don't quite understand what you said. Are you talking about underglaze or overglaze? (Overglaze color is painted on a white tire that has been glazed and fired once, and then fired at about 780℃; The underglaze color is painted on the dry clay embryo in different ways, or sprayed or brushed or dotted according to your creative needs, or coated with special underglaze pigment before glazing, and then fired at a temperature of about 1300);

Porcelain is not a colorant, it is used on industrial porcelain. I am talking about the painting method of artistic porcelain (glaze color is a special ceramic pigment, and there are more than a dozen basic colors that you can mix with other basic colors. Some colors can't blend together, such as yellow and red. These pigments are made from camphor oil and olibanum oil, and of course, water. It is very simple to mix a certain proportion of water and materials to make a paste. (The pigments of underglaze colors are blue and white, and the underglaze multicolored colors are all prepared with water. A little peach gum will be smoother. Of course, these materials are also classified, with glaze and liquid before firing. After a temperature of about 65,438+0,300, it is the glaze with various handfeel that we can touch);

When you say mending porcelain, do you mean mending the shape of porcelain itself or mending the defects of porcelain painting? If porcelain is broken, it can be glued together with professional ceramics to restore the shape of porcelain itself. If you need to make up the picture, you can use the above materials to burn the overglaze, and the underglaze can be fired with thin glaze at low temperature on the fired porcelain. If it is the former glue, it can't be fired any more, and the highest temperature of the best glue is only about 300 degrees.

Jingdezhen mentioned everything. If it is near Zhengzhou, there is a Xianyuetang health club, which also engages in porcelain. Some people teach how to use materials, how to draw, manage firing and, of course, repair.