BR 571M Aliphatic urethane methacrylate oligomer Bomar Specialties PU - Prepolymers >> Urethane acrylate PU - Prepolymers >> Polyether Aliphatic linear polyether urethane methacrylate oligomer. An aliphatic that is in our most versatile product line and includes our patented functional oligomer. This cured oligomer features outstanding hydrolytic stability, low toxicity, excellent abrasion resistance and weatherability. Provides low toxicity, hydrolytic stability, oil and chemical resistance, weatherability, abrasion resistance, good adhesion and gloss. Aliphatic linear polyether urethane methacrylate oligomer. Provides low toxicity, hydrolytic stability, oil and chemical resistance, weatherability, abrasion resistance, good adhesion and gloss.