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plastic injection molding materials

Plastic Injection Molding Materials

When your application requires the right material to get the job done with precision and best-in-class quality, we can help. Our experience across the array of plastic injection molding materials listed here drives our success.

Acrylonitrile Butadiene Styrene (ABS)

This flexible, lightweight, moldable opaque thermoplastic and amorphous polymer consists of acrylonitrile, butadiene and styrene. It is found in many everyday items like kitchen appliances, golf club heads, and LEGO bricks.


Acetal, a high-performance engineering polymer, is ideal for mechanical parts like gears. The high abrasion resistance and low coefficient of friction are well suited for bearings and bushings. The material’s high resistance to water makes it ideal for applications that require lubricity.


Acrylic’s high level of optical clarity and light transmittance is comparable to optical quality glass. The optically clear plastics will not discolor or fade when exposed to light. These properties make acrylics a popular choice for lighting equipment and medical equipment.


Nylon material, also known as polyamide, produces plastic parts used in many industries such as automotive, sports equipment and industrial components. Toughness, wear and chemical resistance and high level of stability make nylons suited to many applications.

Polyetheretherketone (PEEK)

PEEK has heat tolerance characteristics and high strength-to-weight ratios that make the material popular for many industries, including aerospace, biomedical, pharmaceutical, fiber optics and others. Superior mechanical properties make PEEK a good choice for the most demanding applications.

Cross-Linked Polyethylene (PEX)

PEX uses cross-linking to increase low-temperature impact strength, abrasion resistance and environmental stress cracking resistance. PEX can be used as an alternative to PVC, CPVC or copper tubing in residential water pipes. It is also used in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping and insulation for high tension (high voltage) electrical cables.

Polypropylene (PP)

PP is one of the world’s most commonly produced plastics. Used in a variety of applications, including consumer product packaging, automotive parts and containers. Its low cost makes it ideal for many commodity products.

Polystyrene (PS)

PS is a versatile plastic that is largely used in a variety of consumer products such as appliances, electronics, and toys. Its natural state is clear.  It is somewhat brittle, but also comes in an impact modified version.

Polyethylene Terephthalate (PET)/Polybutylene Terephthalate (PBT)

The chemistry of the polyesters PET and PBT is very similar. The differences occur in the alcohol components of the materials, which impact the ability to crystallize. PET is widely used in bottled water or soft drink containers. PBT is characterized as strong, stiff and engineerable and can be found in automotive parts as well as refrigerator shelves and other everyday applications.  

Polyurethane (PUR and PU)

The nature of the chemistry of polyurethane allows it to be molded into shapes in industrial and consumer products. It can be rigid or flexible for a wide range of applications, including skateboard wheels, ski boots, seals, and shoe soles.

Polycarbonate (PC)

PC plastics are naturally transparent amorphous thermoplastics. The raw material allows the transmission of light almost like glass. PC is a viable choice when products demand impact resistance and/or transparency such as used in bulletproof glass.  It is also widely used in electrical enclosures.

Polyethylene (HDPE/LDPE/LLDPE)

A thermoplastic polymer with different crystalline structures, polyethylene is used in a wide array of applications. High-density polyethylene (HDPE) is often used in construction or milk crates while low-density polyethylene (LDPE) is more flexible and used in bottles, lids and caps. High-performance applications such as medical devices are likely to utilize ultra-high-molecular-weight-polyethylene (UHMWPE, UHMW).

Polyphenylene Oxide (PPO)

PPO’s high strength, high heat distortion temperature and high chemical resistance make it one of the most important engineered plastics. It has high mechanical properties, dimension stability and inherent flame resistance.

Polyvinyl Chloride (PVC) (Rigid/Flexible)

This thermoplastic can be melted repeatedly at certain temperatures and will harden upon cooling, making PVC strong, lightweight and durable. Rigid PVC applications include pipe, fittings, valves, sheet and duct, among others. Flexible PVC is used to produce liners, gaskets, wire and cable insulation jackets and many other products.

Thermoplastic Rubber (TPR) & Thermoplastic Elastomers (TPEs)

This unique class of engineering materials combine the look, feel and elasticity of conventional thermoset rubber with the processing efficiency of plastics. TPEs can be stretched and will return to its original shape when the stress is removed. It can be processed at an elevated temperature and lacks significant creep. Widely used in soft grip applications like toothbrush handles.

Plastic Injection Materials Make a Difference.

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