What Is Enamel Frit?

Enamel frit is a necessary material for enamel processing. It is an ungrounded enamel frit and belongs to a kind of borosilicate material. The enamel frit, grinding additive, and water are then ground, and the enamel slurry is obtained after grinding. The enamel slurry is coated with a suitable thickness on the metal body, dried, and fired to form an enamel product.

The enamel materials used for enamel mainly include three categories: mineral raw materials, chemical raw materials and pigment raw materials.

Mineral raw materials are the main components of enamels, which account for a large proportion of the content (due to different manufacturers at home and abroad). It mainly includes: quartz (the main component is silica-SiO2), feldspar (silicate of alkali metal or alkaline earth metal, commonly used potassium feldspar-K2OAl2O36SiO2), clay (aluminosilicate mineral containing water, mainly Al2O36SiO2 and crystal water).

Chemical raw materials are auxiliary components of enamel, which mainly include: borax (Na2B4O710H2O), sodium nitrate (NaNO3), soda ash (Na2CO3), lithium carbonate (Li2CO3), calcium carbonate (CaCO3), magnesium oxide (MgO), zinc oxide ( ZnO), titanium dioxide (TiO2), antimony oxide (Sb2O3), zirconium dioxide (ZrO2), cobalt oxide (CoO), nickel oxide (NiO), manganese dioxide (MnO2), iron oxide (Fe2O3) and so on.

Pigment material refers to the material used to decorate the color of the enamel. There are 8 kinds: black, blue, brown, gray, green, pink, white, yellow, etc.