Opaque Texture Glazes. These texture glazes are very matt and stiff. They can be given an extra rough surface by applying the final coat with a sponge. Although they are lead free and non-toxic, they cannot be considered food safe because the rough surface may tend to trap bacteria. Pewter is quite a stable formulation and performs well at cone 05.
Bronze tends to be a somewhat sensitive glaze.
It provides a beautiful golden bronze finish if the thickness and firing temperature are correct. They are also sensitive to glaze thickness and firing temperature. If the glaze thickness is too thin the color may go silver. If the glaze is too thick or the temperature is too hot, small black spots may develop. They should not be fired hotter than cone 06.