Advantage of Polyether Polyols over Polyester Polyols
§ Various functionality polyols (2 to 8) are available.
§ Equivalent weight can be widely changed.
§ The viscosities are lower than those of polyesters.
§ Production costs are cheaper than those of aliphatic polyesters
§ Resulting foams are hydrolysis resistant
§ Since functionality and equivalent weight of polyether polyols can be widely varied, polyether polyols are extensively used for producing various polyurethanes such as flexible, semi-flexible and rigid foams as well as elastomers, coatings,
adhesives, sealants and resins.