Within sibelco we have several clays deposits in europe, including the uk, germany and russia, where sibelco extracts and processes clays that can be used for both engobe and glaze application. for engobes: drives the viscosity and rheological properties of the engobe; keeps in suspension the other raw materials inside the slip Waterproof engobe fritwith fine whiteness the waterproof engobe frit can effectively cover the unwanted color of the unfired ceramic tile body. because of the waterproof property, our product can prevent the water remained on the ceramic surface u2026 Offered floor tile raw material is widely used in various industries. it is processed using quality tested chemicals under the guidance of skilled team of professionals. the offered high thermal engobe frit is known for its precise ph value, non- toxicity, accurate composition, solubility, purity and effectiveness. Ceramic frits ferro offers a wide variety of specialty ceramic frits that include frits for engobes and compound glazes, and frits for all different ceramic tile bodies and firing technologies. our base frits for screen printing powders and for ceramic coatings are specifically designed to enhance the chromatic range of digital printing inks.