Potash Feldspar 1kg

HT1 Potash Feldspar is the ideal ingredient for stoneware glazes, with a chemical analysis of SiO² 67.3%, Al²O³ 19.1%, Fe²O³ 0.1%, CaO 1.0%, Na²O 4.9%, K²O 7.2%, MgO <0.03%. With purity and quality guaranteed, this glaze material is a must-have for any serious potter. Caution: Hazard Symbol HARMFUL.