Saturated polyester resin is prepared from esterification reaction of poly acid with poly alcohol and is divided into two groups of liquid saturated polyester (solvent base) and solid saturated polyester. Solvent-based polyester resins are applied in coatings used on metal sheets, can coating, coil coating and automobile paints. They are also used in anti-corrosion coatings on iron- steel structures that have epoxy-based primers.

Epoxy resins are commonly the product of reaction between epichlorohydrin and bis-Phenol A. By increase in molecular weight and viscosity, they change from a low viscose liquid to a high viscose liquid and finally become solid. Solid epoxy resins are commonly manufactured in flake type, and generally used in production of powder coatings. They exhibit good chemical and mechanical resistance.

Solvent-based polyester resins have excellent characteristics, with a wide range of applications. They have high resistance to abrasion, impact and cracking. They are mostly applied in coatings used on metal sheets, can coating, coil coating and automobile paints. They are also used in anti-corrosion coatings on iron- steel structures that have epoxy-based primers.