Stoneware Clear Glazes will preserve and enhance the surface of your work.
We suggest using Zinc Free Clear over the following Mayco glaze: Fundamental Underglazes UG-21, UG-22, UG-34, UG-198 and Designer Liner SG-405. Zinc Free Clear works well with common colors that contain chrome.
Cone 6: Zinc Free Clear is a specialty clear glaze designed for use on glazes containing chrome-based pigments.
It ensures that you will get a brilliant, smooth and crystal clear surface over these colors.