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Injection Molding Materials

Many types of plastics can be injection molded. Use the chart below to help decide which thermoplastic is best suited for your injection molding application.

Material Selection

Material Colors Stiffness Dimensional tolerance Intricate design Dark colors Max wall thickness, mm
ABS Many High Good Good Fair 5
Nylon Many High Good Fair Fair 4
Delrin Usually white Med Good Good Good 4
Polyethylene Many Low Poor Good Good 4
Polypropylene Many Low Fair Good Good 2
Polystyrene Many
(translucent, opaque,
transparent, tinted)
Low Good Good Good 5
Polycarbonate Many
(translucent, opaque, transparent, tinted)
Med Good Good Fair 4
Usually white

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