HMW-HDPE supplier — high molecular weight polyethylene for film, pipe and large blow-molded parts

About HMW-HDPE (High Molecular Weight Polyethylene)

High molecular weight HDPE sits between standard HDPE and UHMW. The longer chains give it the melt strength to blow thin, strong film and large parts like drums and tanks, plus the stress-crack resistance pressure pipe needs. Melt indexes are very low, often under 0.1 g/10 min at 190°C/2.16 kg, so most grades are also specified by high-load melt index (21.6 kg). Tell us the MI, HLMI and density you run now and we can match it.

Grades we source

• Film grades (bimodal, high-strength thin gauge)
• Large-part blow molding (drums, IBCs, tanks)
• Pressure pipe grades (PE100 / PE4710)
• Sheet and thermoforming grades
• Natural and pre-colored

Common applications

• T-shirt and merchandise bags
• Thin-gauge high-strength film
• 55-gallon drums and IBC bottles
• Pressure pipe and fittings
• Sheet, liners and truck-bed liners

Typical properties

Property ranges are general guidance and vary by grade and supplier; our team confirms the exact spec and certification for your application.

Related materials: Guide: melt flow index explained · Film, bags & liners · Polyethylene (all grades) · LLDPE · Polypropylene · Recycled (PCR / PIR) · all materials