Chempol 211-2219 Polyester polyol CCP Online Polyurethane (PU) - Polyols >> Polyester Metal Chempol® 211-2219 is polyester polyol for 2K urethanes. It is used in metal-military coatings, metal storage tank coatings, metal- structural steel. It possesses good flexibility, good color retention, good exterior durability. Polyester polyol for 2K urethanes. Used in metal-military and metal storage tank coatings. Offers good flexibility and color retention. Possesses good exterior durability.