- HB1049 is an extra high molecular weight hexene copolymer. It has good melt strength, good rigidity, excellent stress crack resistance and excellent impact strength even at low temperatures. - HB1049 is excellent for large part molding applications. - Recommended applications for HB1049 include blow molding large shipping containers, agricultural chemical tanks and gasoline tanks. Extruded applications would include pallets, cattle feeders, large formed parts and boats.