Types of enameling
In terms of production method, enamel is divided into two categories:
Enamel house
Enamel painting
What is a house envelope? Enamel is an old-fashioned method known as “wire enamel” that uses very thin wires. The wires are cut to the desired shape and glued to the workpiece and covered with glass glaze. It is then placed in a furnace with a temperature of about 1,000 degrees and the wires are welded to the workpiece. In the next step, the special enamel paints that are in the form of powder are filled on the work surface. After the work surface is even and smooth, it is placed in an oven at a temperature of about 1000 degrees for 3 minutes. Rice wires are blacked out after being eaten and must be returned to their original state by acidification. Enamel housekeeping was common in Isfahan and Tehran, but is currently the only homework enamel workshop at the Cultural Heritage Research Institute that teaches this art. “Black enamel” is a type of “house enamel” which is also known as “sabine enamel”. This method of enameling is mainly done in the south of the country and especially in Ahvaz.
What is enamel painting?
The method that is common in Isfahan today is that enamel patterns are formed on transparent glaze. For this purpose, and for enameling, first a master craftsman or potter must make the relevant object according to the desired design and then the master enamel on it can give a white glaze. The glazing step is done three or four times, and each time it is placed in the oven at 700 degrees Celsius to stabilize the color of the glaze. The painting is then painted on this white object and the object is re-baked to a degree of about 400 to 500 degrees and the colors are desired. Chemical dyes are now used in object painting, while in the past the dyes used were plant or mineral. Enamel transparency is also obtained from the presence of tin oxide; But in the engraved enamel, which was common in ancient times and is now used in pottery by Alireza Reza Parvazi, first the glaze material obtained from silica and metal rusts is rounded and polished with tin tin. The desired design is then painted in the colors of the glass and then melted.