OSA PESPOL Polyol structure of systems in terms of Linear aromatic polyester polyols and polyurethane polyols used in the production of the rigips group and the base polyol, and flexible. 56 PES PES 240 has two functional groups and of our products. PES 6 elastomer system is manufactured in accordance with the structured and Linear. Aromatic poly built 240 PES is dead. Rigid systems are compatible. The system provides structural rigidity. All products with low viscosity can be used.