Alathon M4661



Alathon M4661 is a high density copolymer for injection molding applications. Typical applications are closures, institutional seating and consumer durables.


North America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (190 °C/2.16 kg) 6.1 g/10 min
Density (23 °C) 0.946 g/cm³
Flexural Modulus (1% Secant) 938 MPa
Flexural Modulus (1% Secant) 136000 psi
Tensile Stress at Yield (23 °C) 3430 psi
Tensile Stress at Yield (23 °C) 23.6 MPa
Tensile Elongation at Yield (23 °C) 12 %
Notched Izod Impact Strength (23 °C) 1.0 ft-lb/in
Notched Izod Impact Strength (23 °C) 53 J/m
Unnotched Impact Strength (-18 °C) No Break J/m
Unnotched Impact Strength (-18 °C) No Break ft-lb/in
Shore Hardness (Shore D, max) 68
Vicat Softening Temperature 123 °C
Low Temperature Brittleness F₅₀ <-76 °C
Deflection Temperature Under Load (66 psi, Unannealed) 62 °C
Melting Temperature 127.7 °C

Technical Data Sheet

Technical Data Sheet


Injection Molding


High Density Polyethylene


Industrial Seating