Polyester polyol is a type of polymer used primarily in the production of flexible and rigid foams, coatings, and adhesives. It is created by the reaction of diols and dicarboxylic acids, resulting in a compound that can be tailored for various applications. Polyester polyols are known for their durability and resistance to heat and chemicals. These polyols are essential in the manufacturing of polyurethane products, which are widely used in furniture, automotive parts, and insulation materials. Their versatility allows for the creation of materials with specific properties, making them valuable in many industries.