Beamset 505A-6 Urethane acrylate Arakawa Chemical Polyurethane (PU) - Prepolymers >> Urethane acrylate Coatings >> UV / Radiation Curing BEAMSET 550B is liquid Urethane acrylate. It shows good flexibility. It is used in plastics. Liquid Urethane acrylate. Shows good flixibility. Used in plastics.