POLYPROPYLENE COMPOUNDS FOR EXTRUSION & BLOW MOLDING

Rainmaker Polymers offers speciality polypropylene compounds custom designed for the unique demands of extrusion and blow molding. These products are formulated with higher molecular weight resins and specialty grades of fillers to impart the most favorable properties. FDA versions of these compounds are available for the manufacture of thermoformed food containers and can also be precolored to a designated standard. The table below outlines the properties for standard grades. Intermediate and custom filler blends are also available to best fit the requirements of your application.


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Homopolymer Polypropylene

PRODUCT CODE: ECHPCC20 ECHPCC40 ECHPTL20 ECHPTL40
Filler Type   CaCO3 CaCO3 Talc Talc
Filler Level % 20 40 20 40
Specific Gravity ASTM D792 1.05 1.25 1.05 1.25
Notched Izod  ft-lb/in ASTM D356 1.2 1.1 0.9 0.8
Gardner Impact ft-lb ASTM D5420 7.0 12.0 1.5 1.0
Heat Deflection (66psi) Deg. F ASTM D648 210 235 250 280
Heat Deflection (264psi) Deg. F ASTM D648 130 140 155 180
Tensile Strength (Yield) psi ASTM D638 4300 3600 5100 5000
Flexural Modulus psi ASTM D790 285,000 360,000 380,000 550,000