A blended borate mineral for use in glaze formulas replacing Gerstley Borate on a pound for pound basis. Virtually identical to Gerstley Borate, this product requires no adjustment to formula and no extra additives are needed. Mineral Match -- GB provides the same minerals to the glaze as Gerstley Borate, thus imparting the same glaze activity, texture and effects. Particle Size Match -- As a -200 mesh material, GB combines well with other glaze raw materials. Plasticity Match -- A high colloid and clay content gives the plasticity necessary for many applications. Reduced Glaze Defects -- Our laboratory studies indicate that GB gives increased glaze surface smoothness and a reduction in crawling and pinhole defects. Lower In Off-Color Impurities -- As a refined blended material, GB contains few impurities and produces brighter glazes and colors
