Moldgenix is committed to the art and science of material selection, ensuring each project benefits from our deep understanding of thermoplastics and their properties. Our adherence to stringent ISO 9001:2015 standards underscores our dedication to technical excellence, which is integral to our "Total Project Solution" approach.


Our selection encompasses a broad range of high-quality thermoplastics engineered to meet the diverse needs of any custom injection molding project. We leverage our extensive experience to recommend the perfect material for your product’s specific requirements. Our material selection includes:

  • Acrylic: Useful as a replacement for glass, acrylic is very versatile and, although somewhat brittle, can be modified for greater strength.
  • Acrylonitrile Butadiene Styrenes (ABS): Among the most popular and versatile of the resins in the styrene family (which includes polystyrene); its availability, strength, and limited shrinkage all help make it widely used as the default choice for most plastic products.
  • Copolyester: Offers outstanding impact resistance, exceptional crystal-clear clarity, good chemical resistance, dimensional stability/low warpage; high gloss, BPA Free, not manufactured with plasticizers, good gamma resistance, fair UV.
  • High-Impact Polystyrene (HIPS): A very cheap and versatile thermoplastic, polystyrene’s rigidity and limited elasticity has caused it to be supplanted with ABS in most applications; it remains a solid choice for some applications.
  • Nylon: Strong and resistant to wear, it’s used for mechanical parts such as bearings and other low- to medium-stress components.
  • Polycarbonate: Polycarbonate is rigid and particularly useful in clear applications such as lenses and light covers. Some forms are used for single-use food containers and water bottles, but the material is not considered food-safe for reused or washed containers.
  • Polyester: Known for its excellent chemical and abrasion resistance, polyester is also noted for its dimensional stability, high tensile strength, and resistance to shrinkage and stretching. It is often used in textiles, packaging, and plastic reinforcements.
  • Polyethylene: Also known as PE with variants LDPE and HDPE, polyethylene is another bendable material and is one of the most common thermoplastics; it’s used in film-bags, poly-bags, tubing, bearings, toys and buckets, among other things.
  • Polypropylene: A strong but bendable thermoplastic that, while not as clear or cheap as polycarbonate, is safe for reusable containers and laboratory tools; its resistance to fatigue makes it ideal for living hinge applications.
  • Polyurethane: Valued for its excellent flexibility and resilience, polyurethane is used in applications requiring a wide range of hardness, from soft foams to rigid plastics. It is known for its durability, abrasion resistance, and its ability to withstand harsh environmental conditions.
  • Rigid/Flexible PVC: A durable and flexible material, vinyl is widely used for everything from fencing to containers to upholstery; tough and resistant to tearing but can be soft and have trouble holding a rigid shape.
  • Thermoplastic elastomers (TPEs): Also known as Sarlink, Monprene, and Santoprene, are viable injection-molded substitutes for natural rubbers. They offer a range of stiffness and resistance to abrasion which makes them practical for bushings and seals, among other uses.


The right material is only the start. Moldgenix offers comprehensive injection molding services that include not just material selection, but also custom compounding, color matching, and consultation on the selection of additives and reinforcements. This holistic approach ensures optimal performance and aesthetics for your final product.