Pottery is decorated with beautiful and unique decorations using paints and glazes.
Decorating pottery with various patterns and decorations with colorful and beautiful glazes has become popular in Iran since the beginning of Islam.
During this period, vessels with a light golden green to dark brown luster were seen on a creamy white glaze.
Sometimes pottery is made with blue or turquoise glaze.

In pottery, several types of glazes can be used, some of which are soft and some of which are hard.
Soft glazes are glazes that have a low degree of baking.
And hard glazes are glazes that have a higher degree of baking.
In general, it can be said that lead glazes are soft glazes.
Quartz and feldspar glazes are also considered as hard glazes.
Lead glazes include lime, potash, and clay, which are easy to obtain;
Because clay and lead oxide are cooked at 1150 ° C.
Therefore, pottery should be baked first and then this type of glaze should be used to decorate them.
Sodium, potash, lime and quartz glazes are first formed into a glass paste.

انواع لعاب ، نمکی