#Bubble crackle glaze effect plus#

Earthenware glazes are considerably more colourful and effective than stoneware glazes but do not have such a strong connection with the clay. 1020 – 1100☌ should seal the biscuit ware partially, but its major function is decorative. Glazing in the earthenware range of approx.

Is traditionally low fired ceramics with at least one light biscuit ware component which is still porous and can intake water. Terms and temperatures in ceramics are traditional and differ often from region to region Is often also called stoneware and is ceramics made from coloured clays at a firing range of approx.

#Bubble crackle glaze effect plus#

Specially prepared decorative colours are used for the under-glaze technique (on biscuit-fired ware with a transparent glaze finish), the in-glaze or majolica technique (on the unfired glaze) or the on-glaze technique (on a glaze which has already been fired plus decorative firing).īOTZ Unidekor is universally suitable for all decorative techniques. These are highly concentrated bonded pigments for fine decor. BOTZ products have various normal WAK values. High AK values indicate a large change in volume. Abbreviated as AK or WAK = coefficient of heat expansion provided. The coefficient of expansion describes the expansion behaviour of a mass or a glaze and its contraction when cooling down during the final phase of firing. bricks and structural ceramics) and fine ceramics (crockery and objets d'art) We distinguish between coarse ceramics (e.g. Ceramics can be classified as a collective term for products consisting of anorganic raw materials such as clay and glazes in the different firing areas earthenware, stoneware and porcelain. These are pottery poured in plaster moulds and can be decorated using glazes or decorative colours.Ĭeramics are said to be the oldest material known to mankind. The binder also contains suspension agents, dispersion agents and low quantities of preservatives to maintain the glaze's spreadability and stability for a long time. Glaze which has already been mixed as a liquid and is therefore ready for use. For BOTZ glazes, we recommend biscuit firing at a minimum of 1000☌ with a 10 min. At the same time, the biscuit ware remains porous in order to be able to draw in the glaze. The thoroughly dried clay is 'biscuit-fired' in an initial firing process in order to harden it and degas it, so that the glazes can later melt out virtually bubble-free. BOTZ batt wash is already mixed ready for use. To protect against dripping glaze, batt wash, a kaolin mix is spread directly onto the kiln plate. In principle you can also add 20–30% water and immerse or spray. Some colours require thicker or thinner application, please observe the tips on the label on the container. BOTZ brush-on glazes are primarily suitable for 2 – 3 layer brush application.