![]() ASTM D7803 covers the surface preparation and thermal pretreatment of iron and steel products and hardware that have not been previously painted or powder coated. Powder coating is a dry finishing process that uses finely ground particles of pigment and resin, electrostatically charged and sprayed onto a part to be coated. ![]() ![]() The new standard, ASTM D7803, Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surfaces for Powder Coating, was developed by Subcommittee D01.46 on Industrial Protective Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. A new ASTM International standard describes methods of preparing surfaces of hot-dip galvanized iron and steel for powder coating and the application of powder coating materials.
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