Baybond 110 Aliphatic polyester urethane Bayer MaterialScience Polyurethane (PU) - Polyols >> Polyester Baybond 110 is an anionic dispersion of an aliphatic polyester urethane resin in water/n-methyl-2-pyrrolidone. Baybond 110 polyurethane dispersion is suitable for use as a film building component of glass fiber sizings. As with any product, use of Baybond 110 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Aliphatic polyester urethane resin.