The Technology Partnership, Plc.

John E Peeling

Frank A Kuchinski

Metal-ceramic composite coatings provide refractory anti-corrosion flexible enamel coated products. Frit is made of silicon dioxide, sodium or potassium oxide, boron oxide, calcium oxide and zinc oxide, with possible other components. The frit is wet milled with clay and bentonite as a suspending agent, magnesium carbonate and sodium nitrates as electrolyte, boric acid a buffer, and water. Finely divided aluminum is blended after milling. A substrate is coated with the frit aluminum and clay mixture, which is heated and fused. The metal component coats the substrate and provides galvanic protection. The resulting coating is flexible and deforms with the substrate without delaminating or chipping. The coating is prepared by crushing, sieving, mixing and melting the frit components. The melt is tested by pulling, cooling and feeling a thread. The melt is fritted by pouring into water. The frit is dried, ground and sieved, and then wet milled with water, clay, bentonite and pH adjustors. Fine metal powder is added, and flowability is adjusted with water for spraying. Metal panels are cleaned and spray coated. The coating is dried, and then fired or baked, to provide the metal-ceramic composite flexible corrosion prevention coating.

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Brodbecks, PA, United States of America

John E Peeling