SI Group offers Hexa-functional Aromatic Urethane Acrylate. SI Group is an ISO 9001, 14001 and 18000 certified company. Hexa-functional Aromatic Urethane Acrylate is used in ink and coatings. Hexa-functional Aromatic Urethane Acrylate has a fast cure speed and excellent chemical resistance. It has very high film hardness.