Modern industries demand sealing and fluid-handling solutions that go beyond what traditional rubber can offer. Whether you are designing a weatherproof enclosure, a medical device, or an industrial fluid system, the material and manufacturing process you choose directly impacts performance, cost, and longevity.
That is where Thermoplastic Elastomer Extrusion comes in, a process that combines the flexibility of rubber with the processability of plastic, delivering components that are stronger, more consistent, and easier to customize than ever before.
In this guide, we will walk you through everything you need to know, from how thermoplastic extrusion works to why custom profiles are becoming the go-to choice across industries.
What Is Thermoplastic Elastomer Extrusion?
Thermoplastic extrusion is a continuous manufacturing process where raw thermoplastic elastomer (TPE or TPV) material is melted and pushed through a shaped die to create a consistent, long-form profile. Unlike rubber vulcanization, thermoplastic extrusion does not require curing, which means faster production, lower energy consumption, and greater design flexibility.
The result? Precise, repeatable cross-sections in virtually any shape, round, flat, U-channel, D-shape, T-shape, and beyond.
This process forms the foundation for producing Extruded Thermoplastic Profiles used across automotive, construction, medical, food processing, and industrial applications.
TPE vs TPV: Understanding the Materials
Before diving into profiles and tubing, it is important to understand the two primary thermoplastic materials used in extrusion:
TPE (Thermoplastic Elastomer), A broad category of materials that behave like rubber but process like plastic. They are flexible, recyclable, and available in a wide range of hardness levels (durometers).
TPV (Thermoplastic Vulcanizate), A specialized sub-category of TPE where fine rubber particles are cross-linked (vulcanized) within a thermoplastic matrix. TPV offers superior compression set resistance, heat resistance, and chemical resistance compared to standard TPE, making it ideal for demanding sealing applications.
Custom TPE Profiles
One of the greatest advantages of thermoplastic extrusion is the ability to create fully Custom TPE Profiles, components engineered to your exact dimensional requirements, tolerances, and performance specs.
Whether you need a simple round cord or a complex co-extruded multi-durometer profile, TPE extrusion can accommodate it. Custom profiles can incorporate:
- Co-extruded rigid/flexible sections
- Adhesive backing for easy installation
- UV and ozone resistance for outdoor use
- FDA-compliant grades for food and medical contact
This design freedom is what makes Custom TPE Profiles the preferred choice for engineers who need more than a one-size-fits-all solution.
Custom TPV Profiles
For applications requiring higher temperature resistance, better compression set recovery, or long-term outdoor durability, Custom TPV Profiles are the answer. Key performance advantages include:
- Compression set resistance comparable to EPDM rubber
- Continuous service temperatures up to 135°C
- Excellent resistance to oils, greases, and automotive fluids
- UV and ozone stability for weathering applications
Industries such as automotive, mass transit, and building & construction rely heavily on custom TPV profiles for door seals, window glazing gaskets, edge trims, and more.
Extruded Thermoplastic Profiles: Shapes, Sizes & Applications
The range of Extruded Thermoplastic Profiles available today is remarkable. Profiles can be extruded in virtually any cross-sectional geometry, including:
- U-Channel Profiles – Used for edge protection and glass retention in windows and doors
- D-Shape Profiles – Common in door and hatch sealing
- T-Shape Profiles – Used in glazing systems and panel joints
- P-Channel Profiles – Ideal for compression sealing on enclosures
- H-Shape Profiles – Used in double-glazing and curtain wall systems
- Flat Strip & Cord – General purpose sealing and cushioning
Each profile can be extruded to tight dimensional tolerances, ensuring consistent fit and function across thousands of feet of product.
Custom Thermoplastic Extrusion: The Manufacturing Process
Understanding Custom Thermoplastic Extrusion helps you make smarter design decisions. Here is a simplified overview of the process:
- Material Selection – Choose the right TPE or TPV compound based on hardness, temperature requirements, chemical exposure, and regulatory needs.
- Die Design & Tooling – An extrusion die is custom-machined to match your profile geometry. Tooling can often be produced in days, not weeks.
- Extrusion – Pelletized material is fed into an extruder, melted, and pushed through the die at controlled speed and temperature.
- Cooling & Calibration – The extruded profile passes through a cooling tank and calibration tooling to ensure dimensional accuracy.
- Cutting & Coiling – Finished profiles are cut to length or coiled onto spools based on customer requirements.
- Quality Inspection – Each production run is inspected against dimensional tolerances, visual standards, and material properties.
Thermoplastic Rubber Profiles: Industrial-Grade Performance
Thermoplastic Rubber Profiles bridge the gap between hard engineering thermoplastics and soft elastomers. Key industries that rely on them include:
- Automotive – Door seals, trunk seals, hood seals, window glazing
- Building & Construction – Curtain wall gaskets, expansion joint seals, glazing profiles
- Industrial Equipment – Panel seals, machine door gaskets, vibration dampeners
- Mass Transit – Train door seals, bus window seals, hatch gaskets
Because thermoplastic rubber profiles can be extruded with consistent tolerances and joined into continuous loops, they are highly versatile for both OEM and aftermarket sealing applications.
Thermoplastic Weather Seal: Built for the Elements
A Thermoplastic Weather Seal serves one critical purpose, keeping the outside out and the inside in. TPV and TPE weather seals offer several advantages over traditional EPDM rubber:
- Easier to process and recycle
- Better color consistency and UV stability
- Compatible with automated assembly lines
- No sulfur or zinc oxide in the compound, cleaner for sensitive environments
From residential window glazing to heavy-duty industrial enclosures, thermoplastic weather seals deliver long-term performance in demanding outdoor conditions.
Thermoplastic Tubing Manufacturer: Precision-Made for Every Application
Beyond profiles and seals, thermoplastic extrusion is also the backbone of tubing production. A reliable Thermoplastic Tubing Manufacturer can produce tubing across a wide range of grades:
- General Grade TPV Tubing – For industrial fluid transfer, chemical, acid, pneumatic lines, and general-purpose applications
- FDA/NSF-Compliant (NSF 51/NSF 61) Food Grade Tubing – For dairy, brewing, beverage, drinking water, and food processing
- Medical Grade USP Class VI Tubing – For pharmaceutical and medical device applications
- Peristaltic Pump Tubing – Engineered for long flex life in dosing and pumping systems
All tubing grades are latex-free, RoHS compliant, and available in custom colors and durometers.
Choosing the Right Thermoplastic Profile Supplier
Not all extruders are created equal. When selecting a Thermoplastic Profile Supplier, look for:
- In-house tooling capabilities Faster lead times and lower tooling costs
- Material expertise – Deep knowledge of TPE, TPV, Santoprene™, and specialty compounds
- Quality certifications – ISO 9001, RMA tolerances, and material compliance documentation
- Custom capabilities – Ability to co-extrude, splice, cut, and assemble profiles to your specs
- Industry experience – Proven track record across automotive, medical, construction, and industrial markets
A true supplier partner does not just extrude your profile, they help you optimize the design, select the right material, and ensure consistent quality across every production run.
Conclusion
From precision Custom Thermoplastic Extrusion to high-performance Thermoplastic Rubber Profiles and specialized Thermoplastic Tubing, the world of TPE and TPV extrusion offers unmatched flexibility for engineers, designers, and procurement teams across every industry.
Whether you need a standard catalog profile or a fully engineered custom solution, the key is working with a manufacturer who understands your application, masters the material, and delivers consistent quality at competitive lead times.
SantopSeal Corporation, Your Trusted Custom Thermoplastic Extrusion Partner
SantopSeal Corporation is a USA-based manufacturer specializing in custom extruded TPE and TPV seals, gaskets, tubing, and profiles. With decades of extrusion expertise, in-house tooling, and a full range of compliant material grades, SantopSeal delivers precision-engineered sealing solutions for automotive, medical, food processing, construction, and industrial applications.
Contact SantopSeal today: www.santopseal.com | info@santopseal.com | +1 (412) 444-1888