In coating formulation, the key to selecting a resin is determining whether it can meet the critical performance requirements of the intended application. Polyester resins are widely used in powder coatings, coil coatings, industrial baking finishes, packaging coatings, and general industrial ...
Polyester resins used in coatings are not a single, uniform category. Different polyester resins vary in resin structure, reactive functional groups, curing-agent type, application method, and final coating-film structure.
In a coating system, the resin is the primary film-forming material that forms a continuous coating film. Pigments, fillers, additives, solvents, or aqueous media can affect application, leveling, appearance, storage stability, and certain end-use properties. However, the hardness, flexibility, ...
Alkyd resins are a class of oil- or fatty-acid-modified polyester resins. They are typically prepared by esterification polycondensation of polyols, polyacids or acid anhydrides, and vegetable oils or fatty acids. The name “alkyd” is derived from alcohol and acid, reflecting the basic ...
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