Ferrex® GPP20CS70BK 20% Calcium Carbonate Filled, Heat-Stabilized, Impact Modified Polypropylene containing 25% P.C.R.

Subcategory: Polypropylene; Thermoplastic; Polymer

Material Notes:
20% Calcium Carbonate Filled, Heat-Stabilized, Impact Modified Polypropylene containing 25% P.C.R.

Description: Precolored black

Applications: Primary use is for fuel vapor storage brackets.

Specifications: Meets/exceeds Ford Engineering Material Specification WSS-M4D959-A

Comments:
Tensile/Izod Change (1000 hrs./140°C): +6/+4%; WSS-M4D959-A Specification: ±15/-15; ISO 188
Mineral Content: 20 %;WSS-M4D959-A Specification: 17.0-20.0; ISO 3451/1A
Material Pre-dry: Normally it is not necessary to pre-dry this material. However, if conditions dictate drying to optimize material properties and part appearance then dry in a desiccant dryer at 180°F for 2-3 hours or 160°F for >4 hours.
Manifolds: Maintain manifolds, runners and tips 10 to 20°F above the front one temperature to allow easier filling. (Gate drool is best eliminated using screw decompression rather than reducing tip temperature.)
Back Pressure (Range): 50-100 psi. Injection Speed: medium. Screw Speed: medium. Injection Pressure: Adjust to just above a short shot. Injection Time: Adjust to just above a short shot- Weigh pars for consistent packing. Cushion (Range): 0.2-0.5 in. Nozzle Type: Free flowing/Standard.
Some conditions may have to be altered to obtain acceptable parts. Please do not run too cold, molded in stress and rough surface may become a problem. If you must run below melt or temperatures recommended for dimensional precision you may compromise impact and esthetics. Retest parts to confirm performance.

Data provided by Ferro Corporation - Specialty Plastics Group.