Formolene® HP4401 (Natural)

Formolene® HP4401 (Natural) is a natural colored High Density Polyethylene-Hexene Copolymer grade. It has good long-term hoop strength performance, very high melt strength, and outstanding toughness even at low temperatures. It is designed for pipe extrusion process and suggested applications include pressure pipes (potable water, oil and gas gathering and distribution, chemical, industrial and mining, sewer, etc.). Formolene® HP4401 (Natural) meets all requirements of ASTM D4976 – PE 235. When blended with the approved color concentrates, it has a cell class of 345464C per ASTM D3350-05, is listed by PPI as a PE3608 material with HDB's of 1,600 psi @ 73°F and 800 psi @ 140°F and meets the requirements of NSF Standard 14/61 for use with potable water. Formolene® HP4401 also qualifies as a PE3408 material under the old ASTM D3350-02a & PPI standards and also qualifies as a PE80 material per ISO 9080.