CR90631wani nau'in polyurethane ne mai siffar aliphatic diacrylate. Yana da halaye na ƙarancin zafisakin jiki, saurin warkarwa da sauri, juriya mai kyau ga rawaya, tauri mai kyau da ƙarancin wari; Ana amfani da shi galibi a fannin manne na ƙusa na UV.