Injection Molded Resin Guide – TERA PLASTICS & ELECTRONICS

	Mechanical Properties			Moldability Characteristics
Resin Generic Name	Strength	Impact Resistance	High Temp. Strength	Warp and Dimen-sional Accuracy, Molded	Fills Small features	Voids in thick sections	Sink in Thick Sections	Flash	High Temp. hard on Mold & Ejectors	Relative Cost
Acetal	Medium	Medium	Medium-Low	Fair	Fair	Poor	Good	Good	Fair	Medium
Nylon 6/6	Medium	High	Low	Fair	Excellent	Good	Fair	Poor	Fair	Medium
Nylon 6/6, glass filled	High	Medium	High	Poor	Good	Excellent	Good	Fair	Fair	Medium
Polypropylene (PP)	Low	High	Low	Fair	Excellent	Poor	Poor	Poor	Good	Low
High Density Polyethylene (HDPE)	Low	High	Low	Fair	Excellent	Unknown	Poor	Poor	Good	Low
Polycarbonate (PC)	Medium	High	Medium High	Good	Fair	Fair to Good	Fair	Good	Good	Medium High
Acrylonitrile Butadiene Styrene (ABS)	Medium-Low	High	Low	Good	Fair	Good	Fair	Good	Good	Low
Polycarbonate / ABS Alloy (PC/ABS)	Medium	High	Medium	Good-Excellent	Fair	Good	Fair	Good	Good	Medium
Polybutylene Terephthalate (PBT)	Medium	High	Low	Fair	Fair	Unknown	Fair	Fair	Good	Medium High
Polybutylene and Polyethylene Terephthalate, glass filled	High	Medium	Medium	Poor	Fair	Good	Good	Fair	Fair	Medium High
Polystyrene (PS)	Medium-Low	Low	Low	Good	Good	Unknown	Fair	Fair	Good	Low
Thermoplastic Elastomer (TPE)	Low	High	Low	Poor	Excellent	Excellent	Good	Poor	Excellent	Medium-Low
Acrylic	Medium	Low	Low	Good	Fair	Excellent	Good	Good	Good	Medium