DOW HDPE DMDA-8920 NT 7
Dow Plastics - Polyethylene, High Density

General Information
Product Description

- Injection molding
- For injection molded housewares, toys, food containers and pails
- Excellent balance of toughness, stress crack resistance and processability
- Very narrow molecular weight distribution
- Complies with U.S. FDA 21 CFR 177.1520 (c)3.1a
Consult the regulations for complete details.

DOW DMDA-8920 NT 7 High Density Polyethylene (HDPE) Resin is produced via UNIPOL™ Process Technology from Dow and is intended for use in a broad range of injection molding applications such as housewares, toys, food containers and pails. This resin has been designed to provide an excellent balance of toughness, environmental stress crack resistance and processability.

General  
Material Status
  • Commercial: Active
    • Availability
  • North America
    • Test Standards Available
  • ASTM
    • Agency Ratings
  • FDA 21 CFR 177.1520(c) 3.1a 1
    • Forms
  • Pellets
    • Processing Method
  • Injection Molding
    •  
    ASTM and ISO Properties 2
    Physical
    Nominal Value
    Unit
    Test Method
    Density -Specific Gravity
    0.956
    sp gr 23/23°C
    ASTM D792
    Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)
    20.0
    g/10 min
    ASTM D1238
    Enviro. Stress Crack Res (F50, 100% Igepal, 122 °F)
    3.00
    hr
    ASTM D1693
    Mechanical
    Nominal Value
    Unit
    Test Method
    Tensile Strength @ Yield
    4100
    psi
    ASTM D638
    Tensile Strength @ Break
    2000
    psi
    ASTM D638
    Tensile Elongation @ Yld
    7.0
    %
    ASTM D638
    Tensile Elongation @ Brk
    250
    %
    ASTM D638
    Flexural Modulus (Procedure B)
    2% Secant: 167000
    psi
    ASTM D790
    Impact
    Nominal Value
    Unit
    Test Method
    Tensile Impact Strength  3
    20.0
    ft-lb/in²
    ASTM D1822
    Hardness
    Nominal Value
    Unit
    Test Method
    Durometer Hardness (D Scale)
    57
     
    ASTM D2240
    Thermal
    Nominal Value
    Unit
    Test Method
    DTUL @66psi - Unannealed
    163
    °F
    ASTM D648
    Brittle Temperature
    -105
    °F
    ASTM D746
    Vicat Softening Point
    261
    °F
    ASTM D1525
    Melting Point
    266
    °F
    DSC
    Peak Crystallization Temperature (DSC)
    243
    °F
    ASTM D3418
     
    Notes
    1 When used unmodified for the manufacture of food contact articles, DOW HDPE DMDA-8920 NT 7 will comply with Food Additive Regulations FDA 21 CFR 177.1520(c) 3.1a under the U.S. Food, Drug and Cosmetic Act. Such uses are subject to good manufacturing practices and any other limitations which are part of the statute or regulations. These should be consulted for complete details.
    2 Typical properties: these are not to be construed as specifications.
    3 Type S
       
     

    Makes no representation or warranty of any kind, express or implied, with respect to this product, as to merchantability, Fitness for particular purpose or otherwise. The data listed represents average values and are believed to be reliable, They are given for information; no guarantee of their accuracy is made, however, and the product is sold upon condition that purchasers shall make their own test to determinate the characteristics of the product and the suitability of the product for their particular process.