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High-density polyethylene has good heat and cold resistance, good chemical stability, but also has high rigidity and toughness, good mechanical strength. Dielectric properties, environmental stress cracking resistance is also good. The hardness, tensile strength and creep properties are better than those of LDPE. Wear resistance, electrical insulation, toughness and cold resistance are good, but the insulation is slightly worse than the low density; Good chemical stability, at room temperature, insoluble in any organic solvent, acid, alkali and various salts corrosion; The membrane has low permeability to water vapor and air and low water absorption. Poor aging resistance, environmental cracking resistance is not as good as low density polyethylene, especially thermal oxidation will make its performance decline, so, the resin needs to add antioxidant and ultraviolet absorbent to improve the lack of this aspect.

High density polyethylene resin products are granule or powder, no mechanical impurities. The products are cylindrical particles with good mechanical properties and excellent processing properties. They are widely used in the production of extruded pipes, blown films, communication cables, hollow containers, accommodation and other products.