Coating Terms

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Ester based polymers derived from polycondensation of polyols and polyacids. Although their backbone structure is similar, to point out the difference from the fatty acid containing alkyd resins, they are called oil-free polyesters. If the polyols and polyacids contain unsaturation, polyester resins are called “unsaturated polyester resins”, if not, they are called “saturated polyester resins”