Poly-G HQEE Hydroquinone di (beta-hydroxyethyl) ether 104-38-1 Crompton-Uniroyal Chemical Crosslinking / Coupling / Curing Agents >> Diol / Triol PU - Prepolymers Poly-G HQEE aromatic diol is a symmetrical aromatic diol chain extender. Imparts good tensile, elongation, hardness, modulus and resilience properties to polyurethanes elastomers. It is used in elastomers for oil well seals, forklift tires, seals for hydraulic cylnders, conveyor lines, skateboard wheels, and other products in which superior physical properties are required. HQEE is a symmetrical aromatic diol chain extender which is used primarily with MDI based prepolymers and imparts good tensile, elongation, hardness, modulus, and resilience. HQEE is an off-white flake at room temperature and must be melted and heated to ~ 240(F prior to use. Symmetrical aromatic diol chain extender. Used primarily with MDI based prepolymers. Imparts good tensile, elongation, hardness, modulus, and resilience properties to polyurethane elastomers.