Ceramics
Ceramics means clay and the shaped products obtained from clay through firing. Ceramics is one of the oldest methods known to man. Clay is the most important raw material in the production of ceramics.
There are many types of ceramics:
Stoneware is the name for all types of pottery, the shards of which seal when fired. Furthermore, without glazing stoneware is virtually watertight.
Earthenware: because of its low firing temperature, earthenware - unlike stoneware - is not watertight when fired so is generally glazed; only with this glaze is it suitably sealed.
Porcelain is normally double-fired and glazed. The material is completely sealed and has a closed surface. With thin wall thicknesses, it often has a certain semi transparency.
Terracotta is the name used for baked, unglazed clay objects such as vessels and is also used in plastics and architectural ceramics. Terracotta is made from ferrous red or from calciferous yellow clay. Objects made from terracotta have a natural-warm tone and are highly durable. They are waterproof and resistant to frost.
There is a host of edding markers available for the decoration of terracotta and other ceramic items.




