Lupolen 4261AG



Lupolen 4261AG is a high molecular weight high density polyethylene. Typical customer applications include automotive fuel tanks. It is supplied in pellets and is stabilized with antioxidants for the extrusion process. The product features an outstanding Environmental Stress Cracking Resistance (ESCR), good chemical resistance in combination with an excellent low temperature impact resistance. Typical processes include blow molding and thermoforming.

Lupolen 4261AG is not intended for use in medical and pharmaceutical applications. The product can not be used for food contact applications.


Africa-Middle East, Asia-Pacific, Australia and New Zealand, Europe, North America, South & Central America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (190 °C/21.6 kg) 6.0 g/10 min
Melt Flow Rate (190 °C/21.6 kg) 6.0 g/10 min
Density 0.945 g/cm³
Density (23 °C) 0.945 g/cm³
Bulk Density >0.500 g/cm³
Flexural Modulus 1100 MPa
Tensile Modulus 900 MPa
Tensile Stress at Yield 24 MPa
Tensile Strain at Yield 10 %
Environmental Stress Crack Resistance F₁₀ (10% Igepal®, Cond B) 1000 hr
FNCT (3.5 MPa, 2% Arkopal N100, 80 °C) 80 hr
Tensile Impact Strength 170 kJ/m²
Vicat Softening Temperature (A/50) 126 °C
Oxidation Induction Time (200 °C) 50 min
Peak Melting Point 131 °C
Melt Temperature 180 - 240 °C


Extrusion Blow Molding, Thermoforming


High Density Polyethylene


Fuel Tanks, Non-fuel Reservoirs