Urethhall 4050-110 Polyester polyol C. P. Hall PU - Polyols >> Polyester ADHESIVE >> Solvent based URETHHALL 4050 polyols are liquid, linear, saturated, aliphatic polyester polyols with all primary functionality. The primary use for the URETHHALL 4050 series are the formulation of urethanes for solvent based coatings, adhesives, and for thermoplastic urethanes (TPU). Lower prepolymer viscosities than adipates have been shown. Linear, saturated aliphatic polyester polyol. Used for the formulation of urethanes for solvent based adhesives.