Custom Compounders Since 1973

Polifil® RP-HDPE

Polifil RP-HDPE

Reprocessed High Density Polyethylene

Polifil® RP-High Density Polyethylene is a moderate stiffness material that retains excellent toughness. HDPE exhibits outstanding chemical resistance and environmental stress crack resistance. Injection molding applications range from small containers and lids to large crates and bins. Low melt flow versions are used for blow molded bottles for milk, cosmetics, and chemicals, and in extruded items such as pipes and profiles. High molecular weight (HMW) grades are increasingly used for high strength blown films, and large blow molded items such as drums, water tanks, and toys.

The property values listed in the PDF document(s) have been obtained using laboratory controlled test methods. They are offered without guarantee since conditions under which the product is used are beyond our control. Mold shrinkage is intended as a guide only, as specific shrinkage is affected by part design, mold design and molding conditions. Therefore, The Plastics Group disclaims any liability for loss or damage incurred in connection with the use of this product.

Physical
ASTM/
Method
Polifil®
RP-HDPE
Reinforcement content (%) TPG WI -
Specific gravity D 792 0.96
Melt flow 190/2.16 (g/10 min) D 1238 0.1-5*
Water absorption, 24 hours (%) D 570 nil
Mold shrinkage - 1/8" specimen (in/in) D 955 0.028
Mechanical @ 73°F    
Tensile strength (psi) D 638 3,500
Elongation @ yield (%) D 638 12
Elongation @ break (%) D 638 >200
Tensile modulus (kpsi) D 638 170
Flexural modulus, tangent (kpsi) D 790 150
Flexural strength (psi) D 790 4,000
Izod impact, notched (ft-lbs/in) D 256 1.6
Gardner impact, 1/2" tup (in-lbs) D 5420 >200
Hardness, shore (D-scale) D 1415 64
Thermal    
Deflection temperature, 66psi (°F) D 648 160
Deflection temperature, 264psi (°F) D 648 90
* melt flow may be specified