BR 741 Aliphatic urethane acrylate oligomer Bomar Specialties PU - Prepolymers >> Urethane acrylate PU - Prepolymers >> Polyester ADHESIVE Aliphatic polyester urethane acrylate. An aliphatic oligomer that provides excellent cured film characteristics. Applications include adhesives where toughness as well as oil and chemical resistance are required. Provides oil and chemical resistance, abrasion resistance, good adhesion and gloss. Aliphatic polyester urethane acrylate oligomer used in adhesives where toughness and oil and chemical resistance are required. Provides abrasion resistance, good adhesion and gloss.