Injection Molding Plastics

Below is a list of the most common plastics used in injection molding and the attributes of each.

Acetal (POM): ridged, chemical resistant, strong, fatigue resistant, moisture resistant

Acrylic (PMMA): ridged, scratch resistant, brittle, transparent

Acrylonitrile Butadiene Styrene (ABS): flexible, strong, chemical resistant, opaque, electroplating   capability

Cellulose Acetate (CA): transparent, tough

Polyamide 6 (Nylon) (PA6): fatigue resistant, low friction, chemical resistant, strong

Polyamide 6/6 (Nylon) (PA6/6): fatigue resistant, strong, low friction, chemical resistance

Polyamide 11+12 (Nylon) (PA11+12): low friction, strong, fatigue resistance, chemical resistant

Polycarbonate (PC): transparent, dimensional stability, tough, temperature resistance

Polyester (PBT,PET): chemical resistant, heat tolerant, ridged,

Polyether Sulphone (PES): clear, tough, extremely chemical resistant

Polyetheretherketone (PEEKEEK): chemical resistance, abrasion resistance, low moisture absorption, strong, thermal stability

Polyetherimide (PEI): heat tolerant, flame resistance, transparent

Polyethylene (Low Density) (LDPE): tough, flexible, lightweight, chemical resistant, waxy appearance

Polyethylene (High Density) (HDPE): stiff, tough, chemical resistance, waxy appearance

Polyphenylene Oxide (PPO): heat tolerant, flame resistant, low water absorption, dimensional stability, tough, electroplating capability

Polyphenylene Sulphide (PPS): Heat tolerant, very strong, brown

Polypropylene (PP): scratch resistant, waxy appearance, stiff, tough, lightweight, chemical resistance, heat tolerant

Polystyrene (General Purpose) (GPPS): brittle, transparent

Polystyrene (High Impact) (HIPS): tough, dimensional stability, translucent, impact strength, ridged

Polyvinyl Chloride (Plasticised) (PVC): transparent or opaque, flexible, tough, flame resistant

Polyvinyl Chloride (Rigid) (UPVC): flame resistant, tough, flexible, transparent or opaque

Styrene Acrylonitrile (SAN): transparent, brittle, stiff, heat tolerant, chemical resistance, hydrolytically stable

Thermoplastic Elastomer/Rubber (TPE/R): flexible, tough