Precision Thermoplastics for Medical Devices
From fluid transfer to device design
At Saint-Gobain, we engineer advanced thermoplastics to meet the complex requirements of medical device and diagnostics manufacturers. Whether you are developing high-precision molded housings or specialized extruded tubing for fluid management, our materials are selected and formulated to perform across a wide range of processing and sterilization conditions.
Our team supports both extrusion and molding programs, bringing deep experience with biocompatibility, regulatory stability, and long-term supply chain planning. From development through production, we help ensure your material choices align with clinical needs, processing performance, and device lifecycle expectations.
Thermoplastic Materials
Frequently Asked Questions About Thermoplastics
Thermoplastics are polymers that can be melted, shaped, and re-solidified multiple times. This makes them well suited for common medical manufacturing methods like injection molding and extrusion. Materials such as polycarbonate, polypropylene, and thermoplastic elastomers are widely used in devices that require flexibility, transparency, or chemical resistance.
Thermoplastics are a great choice for medical device components due to their ability to be easily sterilized, recyclable, and have good chemical resistance. Many grades meet USP Class VI or ISO 10993 standards and can be sterilized using EtO, gamma, or autoclave methods. They are also well suited for continuous manufacturing techniques and allow for design flexibility across molded and extruded formats.
Thermoplastics include dozens of polymer families. Each type offers different balances of strength, clarity, chemical resistance, flexibility, and heat tolerance. Some are designed for durability in reusable systems, while others are optimized for cost efficiency in disposable components.
| Category | Examples | Key Attributes | Use Cases |
|---|---|---|---|
| High-Performance | PEEK, PPSU, PEI, PAI | Chemically inert, high heat resistance, sterilization stable | Reusable surgical tools, tubing for aggressive chemistries |
| Engineering | PC, PET, POM, ABS | Dimensional stability, good optical clarity, consistent flow | Diagnostic housings, fluidic blocks, pump and sensor tubing |
| Commodity | PP, HDPE, LDPE | Low cost, good chemical resistance, gamma stable grades | Disposable tubing, caps, spike ports, manifolds |
| Elastomeric | TPU, TPE-S, TPE-E | Flexible, kink resistant, soft touch, overmoldable | Peristaltic pump tubing, wearable interfaces, gaskets |
| Fluoropolymers | PVDF, FEP, ETFE | High chemical resistance, low friction, low extractables | Catheters, barrier tubing valve components, containment chambers |
Understanding the Thermoplastic Spectrum
Selecting a thermoplastic is rarely a one-dimensional decision. It requires balancing performance, processing, regulatory, and supply considerations. PEEK, for example, provides outstanding thermal and chemical resistance but requires tight process control during molding or extrusion. Polypropylene is cost-effective and gamma-compatible but may deform in autoclave cycles.
Processing method also plays a major role. Molded parts may require materials that flow well into thin walls or maintain dimensional stability after ejection and sterilization. Extruded tubing may need clarity, flexibility, or low extractables, depending on the application.
Considerations include:
- Sterilization compatibility (EtO, gamma, autoclave)
- Biocompatibility standards and extractables testing
- Bonding and welding behavior in assembly
- Kink resistance and memory for tubing
- Dimensional stability and tolerance for molded features
- Availability of medical grades with locked formulations
A diagnostic cartridge made from PC may prioritize dimensional control and clarity. A wearable infusion line made from TPU may require soft durometer, low tack, and extended pump durability. A catheter using PVDF or FEP may need low friction, chemical resistance, and sterilization resilience.
Each material family brings tradeoffs, and choosing the right one requires understanding not only how it performs, but how it behaves in your manufacturing environment and regulatory pathway.
Thermoplastic Capabilities
Thermoplastic Products