BR 990 Aliphatic urethane acrylate oligomer Bomar Specialties PU - Prepolymers >> Urethane acrylate Multi-functional aliphatic urethane acrylate. An aliphatic oligomer that offers rapid cure and is ideal for coatings where premium performance is desired. Cured films range from stiff to flexible all with excellent abrasion, stain and chemical resistance plus good hydrolytic stability. Provides hydrolytic stability, oil and chemical resistance, weatherability, abrasion resistance, good adhesion and gloss. Multi-functional aliphatic urethane acrylate oligomer that offers rapid cure. Provides hydrolytic stability, oil and chemical resistance, weatherability, abrasion resistance, good adhesion and gloss.