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MATERIALS: More endurance from reinforced thermoplastic polyester

New Petra Endurance Enhanced glass-fibre reinforced thermoplastic polyester resins from Honeywell Plastics provide a balance of high fatigue strength and good surface appearance, a combination previou...


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February 1, 2003 by Canadian Plastics

New Petra Endurance Enhanced glass-fibre reinforced thermoplastic polyester resins from Honeywell Plastics provide a balance of high fatigue strength and good surface appearance, a combination previously not available with compounds having high glass-reinforcement content.

Compared with other reinforced thermoplastic polyesters, the fatigue strength of the new Petra Endurance Enhanced grades typically is 10 to 50 times higher.

The Petra 7300 series is a post-consumer recycled PET grade, while the upcoming Petra 7500 series will be virgin polyester.

The new reinforced Petra grades have superior melt stability and high melt flow, permitting a much broader processing window compared with other highly reinforced polyesters. This makes the resins suitable for large parts and for thin-wall parts made in molds with small gates.

The high fatigue strength and good surface appearance possible with the Petra resins makes them ideal for molding chairs and arm rests.

Honeywell Plastics 416-233-0049