Compound suits thin-wall injection molding.

Press Release Summary:

High-flow conductive polypropylene compound is easy-to-mold, conductive material that achieves typical melt flows of 20 g/10 min and 2160 g at 230°C. Material minimizes warpage and retains physical properties with notched IZOD impact strength of 2.5 ft-lb/in. and no-break unnotched IZOD impact strength. Surface resistivity is 104 ohms/sq, with volume resistivity less than 25 ohm-cm. Applications include complex medical, electronic, and biotechnological devices.

Original Press Release:

RTP Company Introduces New High-Flow Conductive Compounds

WINONA, MN, USA - October 15, 2004 - RTF Company has developed new high-flow conductive polypropylene (PP) compounds for thin-wall injection molding, which has become increasingly important for producing complex medical, electronic, and biotechnological devices.

Thin-wall parts have a restrictive flow path leading to narrower processing windows, and the need for specialty thermoplastic materials. When existing materials cannot consistently fill thin-walls or difficult geometries, the new high-flow, conductive PP offers a viable solution without the need to modify tooling or part design. The easy-to-mold, conductive PP materials achieve typical melt flows of 20 grams/10 minutes (2160 grams at 230° C), which compare favorably to existing conductive PP materials (melt flows ranging from 1 to 3).

The materials have been specially designed to minimize warpage and retain their robust physical properties with a notched IZOD impact strength of 2.5 ft-lbs/inch (133 J/m) and a "no break" unnotched IZOD impact strength. These tough, highly conductive compounds offer a surface resistivity of 104 ohms/square (maximum) and volume resistivity of less than 25 ohm-cm. Applications include containers, totes, bins, pipette tips, and explosives handling products.

RTP Company, headquartered in Winona, Minnesota, is a global leader in specialty compounding. The company has six manufacturing plants on three continents, plus sales representatives throughout North America, Europe, and Asia/Pacific. RTP Company's engineers develop customized thermoplastic compounds in over 60 different engineering resin systems for applications requiring color, conductive, flame retardant, high temperature, structural, thermoplastic elastomer, and wear resistant properties.

For more information call (800) 433-4787 or (507) 454-6900, or visit our website at

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