Material Selection

Material selection for medical insert injection molding is important for quality and safety concerns. We at Seaskymedical aim at creating specialized solutions for your needs based on the healthcare industry standard.

Select the Right Material

Material Selection for Medical Injection Molding

Material selection for medical injection molding is of utmost importance. We at Seaskymedical try to give you the best services at all times. The suitable material determines the safety and durability of the product. So, it is essential not only for reducing costs but also to gain profits. Our team of experts can help you in selecting the right material for your needs.


With a wealth of medical plastics in stock, this shortens your material purchasing time, speeding up your project progress. The fastest we can achieve is 2 days for the injection production of accelerated projects.

Common Plastic Materials Used in Medical Device Injection Molding

While we offer a wide range of plastics for injection molding processes, only a few of them are extensively used in the medical industry. All of these materials have different properties and hence have different applications.

  • Rubber is used for its strength and durability in the room and at elevated temperatures. It also offers heat insulation and chemical resistance making its applications more diverse  than other plastics.
  • Polycarbonate is a thermoplastic that gives a translucent appearance.  With chemical and impact resistance properties and temperature resistance, polycarbonate is preferred for medical plastic injection.
  • Polyethylene is another plastic that is primarily used in injection molding because of its chemical resistance. It is non-reactive and has high impact resistance which finds good use in the medical industry.
  • Nylon is often preferred for injection molding as an alternative to silicone or rubber because it is relatively cheaper. It is highly flexible and durable; worth applying to multiple uses like a micro molder

  • A thermoplastic polypropylene is a polymer with chemical resistance and high durability. It is relatively cheaper, and its accessibility makes it one of the most common options during injection molding materials selection.
  • High Impact Polystyrene (HIPS) is often used in insert injection molding processes because of its durability and impact resistance. It is injected with high pressure to fill all the cavities and create a high-precision product.
  • Acrylonitrile Butadiene Styrene (ABS) offers a glossy finish without compromising the strength of the material. It also offers wear and temperature resistance. It does not have a melting point due to its amorphous nature.
  • PEEK is a highly versatile material that is used for a number of different applications in different industries. This material can be sterilized and is resistant to chemicals as well as radiation.

Considerations for Selecting Medical Injection Molding Materials

In any plastic material selection guide, you can find certain aspects important to consider before material selection for injection molding. At Seaskymedical, we offer you some expert guidance too.


Considering the biocompatibility of plastic with the mold and the industrial application is essential during material selection. Our team of experts can assist you in choosing the right material for the perfect prototype development.

ISO certification

Our ISO certification is testimony to your dedication to quality control. We have five injection molding machines in ISO 8 clean rooms to facilitate a contaminant-free production.

Ability to be sterilized

We offer green room production services, but the ability of a material to be sterilized is variable. Any material used in the medical industry should be easy to sterilize to maintain safety standards.

Product appearance

The product appearance is entirely dependent on the material selection. Different plastics respond to injection molding differently. Different tolerance levels can impact the appearance of the final product at room temperature.

Material Properties

We offer clean room for medical devices injection after selecting the material. Any material used in the medical industry should be easy to sterilize to maintain safety standards.

FDA regulations

The injection molding facility and workshop are in strict adherence to FDI regulations. We maintain cleanliness in the production area and only use medical-grade material during production.

The Application

Considering the application of the product before injection mold, material selection gives you an idea of its compatibility with the industry regulations. Different plastics have different reactivities which need to be considered.

Thermoset vs. Thermoplastic

The applications of the product need to be considered before choosing either a thermosetting or thermoplastic material. Choosing thermosetting plastics gives high-temperature resistance. Thermoplastics are great for high durability at room temperature.

Why Seaskymedical for your injection molding material selection needs

As a professional medical molding company, Seaskymedical is a one-stop service for all your injection molding, mold tooling design, and material selection requirements. We are a company based in China to help you select the right material for the medical industry. 

Cooperate With Certified Color Masterbatch Suppliers

We have a number of certified color masterbatch suppliers. They provide us with medical-grade raw materials and plastic resins,ensuring the safety of our products. Seaskymedical is currently cooperating with more than ten companies for raw material supply.

Ten years+ Experience in Plastic Material Selection

Our team of experts has more than a decade's worth of experience in the immaterial section and product development. We specialize in creating customized solutions for clients requiring specific products and certain materials.

COC Certificate & Medical Material Certification

We have a certificate of conformity as a testimony. It is our commitment to providing the best service to our clients for the material section. The quality of the raw material is optimal and the medical plastic is sourced from the original factory.

Recommend Plastics for Biocompatibility and Uses

Seaskymedical recognizes the medical standard and demands of the industry. It enables us to recommend the best materials. The injection mold material selection is always based on its biocompatibility and end-use.

ISO 13485-2016 Certification

With ISO 13485-2016 certification along with facilities like ISO 8 cleanrooms, hygienic and safe production is easy. We offer sterilized environments to maintain the health codes of equipment products in the medical industry.

Injection Molding Material Selection Services

Our medical kit packaging and material selection services are offered along with a number of secondary operations. We are currently operating for 300 globally based companies via medical contract manufacturing.

Applications of Injection Molding Materials

The injection molding material selection can significantly impact the applications of the products. We can help you expand your market with efficient service when it comes to material selection.

Medical Device Components Manufacturing

The primary reason for injection molding materials selection is medical device components manufacturing in accordance with the industry standards. We can help you choose the right material based on the texture and finish you have in mind.

Electronics Housing

During plastic material selection, one has to be careful of the final application, which can also be electronics housing. We offer specialized solutions when it comes to plastics because of electrical insulation.

Aerospace Plastic Enclosures

The demand for plastic components has become important in industries such as aerospace. Considering the characteristics of plastics, one can say that it provides both heat and electrical insulation, thereby promoting security.

Food & Beverage

Clients receive hygienic production and assembly lines with our ISO 8 clean rooms. With advanced injection molding machines and adequate material selection, safety concerns in the food and beverage industry could be guaranteed.


Advantage of Plastic Material over Metal in Injection Mold

Seaskymedical deals with a number of plastic materials for medical injection molding. We aim to provide high chemical resistance. It can only be achieved with inert plastic and not reactive metals. Metals also take longer to set and have significantly higher melting temperatures. This makes the molding process complicated.

Commonly used medical plastic warehouse

Providing Professional Suggestion

Material Specialist at Your Side

SeaskyMedical has rich experience in working with a wide range of medical-grade materials. We recommend suitable materials for your products according to which type of medical device your product belongs to and the environment it applied. Also, the sterilization protocol of medical injection products varies according to the different materials used.

  • PC
  • ABS
  • PA12
  • PLGA
  • PLLA
  • PEI
  • PEEK
  • PS
  • PSU
  • PPSU
  • PES
  • LCP
  • HDPE
  • PE
  • LDPE
  • PP
  • MBS
  • PCTG
  • PETG
  • PTFE
  • POM
  • PET
  • PPO
  • TPU
  • TPE
  • PBT
  • EVA
  • PVC
  • AS
  • SAN

Know More about Injection Molding Materials

green circle

Talk to Our Experts