Polyurethane-108 is a complex urethane polymer that is formed by reacting a mixture of Hydrogenated Dilinoleyl Alcohol, Caprylic/Capric/Succinic Triglyceride, Hydrogenated Castor Oil, Propanediol, and Glycerin with a mixture of 1,6-Hexamethylene Diisocyanate, Isophorone Diisocyanate, and Pentamethylene Isocyanurate Trimer