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Materials & Uses

There are many different materials used for plastic injection moulding of which the table below shows some of the most common, the properties and typical aaplications.

Material Abbr. Properties Typical Applications
PP Homopolymer HPPP Semi rigid, durable and chemical resistant, low cost fatigue resistant. Small domestic appliances eg kettles, Tupperware, Plastic chairs, waterpipes and fittings.
PP Copolymer CPPP Good gloss, durable and chemical resistant, low cost. Fatigue resistant. Large automotive parts, Caps and closures, disposable plates and cups. Ideal for living hinges
Polyethylene PE Good chemical resistance, flexible or semi rigid depending on grade.  Weatherproof, good low temperature performance.  Non toxic.  Low cost. Low Density –Food packaging and containers, low pressure pipes  High Density – crates, chemical drums, gas/water pipe and fittings, kitchenware
PE Low Density LDPE/LLDPE
PE High Density HDPE
Polystyrene PS Dimensional stability and low mould shrinkage. Many grades available including transparent and tough. Low Cost. Toys, food and cosmetic packaging refrigerator linings, cd cases, stationary, Lighting diffusers.
High Impact HIPS
Acrylic PMMA Rigid, clear, glossy, good weather resistance Lenses, signs, light diffusers and fittings, mobile phone lenses
Acrylonitrile Butadiene Styrene ABS Rigid, opaque, tough, good gloss, texture possible Domestic appliances, car fascias, computer housings, Fan Impellers, Power tools
Nylon (Polyamide) PA Rigid, tough, hardwearing. Gears, bearings, automotive under bonnet parts and cable ties.
Acetyl POM Rigid, tough, spring like, good wear and electrical properties.Food and medical approval Aerosol valves, clock parts, filters, computer & printer components, low wear gears and bearings.
Polycarbonate PC Rigid, transparent, excellent impact resistance, good weather resistance, good dimensional stability Crash helmet visors, vandal proof glazing, riot shields, car headlamp lenses, safety helmets, babies' bottles. Household and commercial Lighting diffusers
Acrylate Styrene Acrylonitrile ASA Rigid, opaque, tough, good UV resistance Housings, telephones, automotive door mirrors and radiator grilles, glazing components.
Styrene Acrylonitrile SAN Rigid, transparent, tough, resistant to stress cracking Lenses, drinking tumblers, kitchen and bathroom goods.
Polyvinyl Chloride PVC Rigid or flexible grades, weatherproof, non-flammable, good impact strength and electrical insulation Drainpipes and guttering, cable insulation, flooring, roofing, hosepipes, building products.
Polyurethane PUR Flexible, clear, impermeable Shoe soles and heels, seals, gaskets, rollers, wheels, grips.
Polyesters PBT, PET Rigid, clear, extremely tough, wide temperature range resistance and electrical insulation Drink bottles, electrical components, showerheads, irons and high temperature lighting
Polysulphide PES,PSU,PEEK Excellent high temperature stability, rigid or flexible grades available.  High cost Microwave grills, chemotherapy devices, fuel cells, metal replacement, medical implants and equipment
Polyphenylene Sulphide PPS Rigid, opaque, non-burning, good chemical resistance at high temperature Chemical pumps, medical and dental equipment, transformer parts (HVAC), heating element bases.
Polyvinylidene Fluoride PVDF Strong, tough material with excellent chemical and heat resistance Valves, pumps, bearings in chemical process industry
Polyphenylene Oxide PPO Rigid, opaque, glossy, excellent dimensional stability TV housings, automotive instrument enclosures
Ethylene Vinyl Acetate EVA Flexible (rubber-like), good low temperature flexibility, good chemical resistance Handle grips, ice cube trays, hoses.
Thermoplastic Polyuurethane TPU Good resistance to oil, abrasion and cold temperatures. Excellent flexible qualities Diaphragms, automotive exterior trims, medical tubing, Sports goggles.
Thermoplastic Elastomer TPE Anti Slip Soft touch good bonding to other polymers (overmoulding) good chemical and electrical resistance. Grips on power tools and remote controls, seals and medical instruments
Polyester ether ketone PEEK Excellent Chemical and Mechanical properties. High Melt point Medical implants, Bearings, Pistons and pumps, ideal for metal replacement.


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