POLYPROPYLENE COMPOUNDS FOR INJECTION MOLDING

The tables below outline average properties for standard filled and reinforced grades of polypropylene. Products are also available at intermediate filler levels, filler combinations as well as precolored and FDA versions. Rainmaker Polymers also offers a complete matrix of UL listed polypropylenes. Please contact your account representative for further details.


injection molding compounds

Homopolymer Polypropylene

PRODUCT CODE: MCHP
CC20		 MCHP
CC40		 MCHP
TL20		 MCHP
TL40		 MCHP
MI20		 MCHP
MI40		 MCHP
GL20		 MCHP
GL40
Filler Type   CaCO3 CaCO3 Talc Talc Mica Mica Glass Glass
Filler Level % 20 40 20 40 20 40 20 40
Specific Gravity ASTM D792 1.05 1.25 1.05 1.25 1.05 1.25 1.05 1.24
Notched Izod  ft-lb/in ASTM D356 .70 .75 .60 .50 .60 0.50 1.20 1.40
Gardner Impact ft-lb ASTM D5420 5.0 10.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Heat Deflection (66psi) Deg. F ASTM D648 210 235 245 275 250 280 305 315
Heat Deflection (264psi) Deg. F ASTM D648 125 130 150 175 155 185 280 300
Tensile Strength (Yield) psi ASTM D638 4200 3500 4800 4500 4500 4100 8000 10000
Flexural Modulus psi ASTM D790 275,000 350,000 360,000 485,000 380,000 520,000 600,000 1,000,000


Copolymer Polypropylene

PRODUCT CODE: MCCP
CC20		 MCCP
CC40		 MCCP
TL20		 MCCP
TL40		 MCCP
MI20		 MCCP
MI40		 MCCP
GL20		 MCCP
GL40
Filler Type   CaCO3 CaCO33 Talc Talc Mica Mica Glass Glass
Filler Level % 20 40 20 40 20 40 20 40
Specific Gravity ASTM D792 1.05 1.25 1.05 1.25 1.05 1.25 1.05 1.24
Notched Izod  ft-lb/in ASTM D356 10.0 8.0 6.0 1.1 5.0 1.0 3.5 4.0
Gardner Impact ft-lb ASTM D5420 20.0 15.0 10.0 5.0 8.0 3.5 10.0 5.0
Heat Deflection (66psi) Deg. F ASTM D648 170 200 225 240 230 245 285 295
Heat Deflection (264psi) Deg. F ASTM D648 105 110 135 150 140 170 255 280
Tensile Strength (Yield) psi ASTM D638 3100 2600 3600 3100 3300 2900 6000 9000
Flexural Modulus psi ASTM D790 190,000 240,000 230,000 340,000 250,000 390,000 480,000 780,000