Reach certified acid resistant enamel frit for air preheating pipe: item no. 5602: range of application: carbon steel plate: application: cookwares; bbq oven, grill and enamel bathtub; enamel household appliances, oven and water heater tank; enamel panels for construction and subway; air pre-heater, heat exchanger, enamel reactor. Porcelain enamel frit significantly improves the properties of the base metal such as resistance to acid, alkali, corrosion and hot water. our porcelain enamel frit product line can be used on a wide variety of base metals, such as cold-rolled sheet steel, cast iron, stainless steel, aluminum, and u2026 Glass standards and ceramic standards. astm's glass and ceramic standards are instrumental in specifying, testing, and evaluating the chemical, physical, and mechanical properties of various materials and products made of glass, ceramic, or clay. these materials are fabricated for a variety of purposes including arts and aesthetics, foodware,... Alibaba offers 1,981 enamel frits products. about 75% of these are other inorganic chemicals, 14% are ceramics, and 5% are building glass. a wide variety of enamel frits options are available to you, such as industrial grade, food grade, and electron grade.