Two popular materials stand out for sealing solutions and profiles in building applications: polyvinyl chloride (PVC) and thermoplastic elastomers (Two popular materials stand out in the world of sealing solutions and technical profiles in construction and industrial applications: polyvinyl chloride (PVC) and thermoplastic elastomers (TPE). Both materials offer distinct sets of properties that affect durability, flexibility, environmental impact, and cost. When you’re designing window systems, sealing transport equipment, or manufacturing custom components, understanding at least the basic differences between PVC and TPE can be useful. This article explores some key characteristics, applications, and performance considerations of these materials, with a specific focus on how TPE represents a forward-looking alternative that you might want to consider switching to.

Material Properties

To determine the right material for a specific application, it’s important to start by understanding its intrinsic material properties. How a material behaves under stress, exposure to different temperatures, and how it interacts with other substances will play an important role in determining how a profile will perform over time.

TPE (Thermoplastic Elastomer)

TPE represents a versatile class of materials that blends the elastic properties of rubber with the processing benefits of thermoplastics. TPE profiles are soft to the touch, highly flexible, and capable of returning to their original shape after compression. These qualities are essential in applications requiring a tight, adaptive seal.

Modern TPEs offer improved chemical resistance and UV stability, closing the gap between rubber and plastic materials. Some TPE grades are engineered for higher hardness and dimensional stability, making them suitable for structural applications that previously defaulted to PVC. Additionally, TPE materials are often recyclable and can be reprocessed with minimal material degradation, making them a more sustainable option.

PVC (Polyvinyl Chloride)

PVC is a synthetic thermoplastic polymer widely used across the construction and manufacturing industries. It is characterized by its rigidity and chemical stability, and offers reliable resistance to oils, acids, and other aggressive substances. One of its standout features is its inherent strength, which allows it to retain shape and structure even under mechanical stress. PVC performs well in outdoor conditions thanks to its UV resistance, making it a reliable option for exposed installations.

Furthermore, PVC is a cost-effective solution for high-volume projects, thanks to its availability and well-established production processes. However, its rigidity can become a drawback in dynamic or high-flex applications where elasticity and shape recovery are needed.

Applications

Now that we understand the base properties, the next key factor is application-specific suitability. PVC and TPE are both used in sealing and profile applications, but they excel in different environments and roles depending on mechanical demands, environmental exposure, and assembly methods.

PVC Seals and Profiles

PVC seals and profiles are primarily used in structural roles. Their rigidity makes them ideal for window and door frames, cladding, trunking, and pipe profiles, which are all areas where maintaining dimensional stability over time is critical. In building applications, PVC is commonly extruded into profiles that integrate into larger systems, such as glazing frames or exterior wall systems.

In transportation and heavy equipment manufacturing, PVC is used in semi-structural protective profiles, thanks to its resistance to corrosion and wear. Its long-standing presence in these industries also means PVC profiles are widely available and supported by a large network of tooling and processing expertise.

TPE Seals and Profiles

TPE profiles shine in applications that require frequent movement, thermal cycling, or dynamic sealing. These include automotive door seals, HVAC gaskets, vibration-damping elements, and components in consumer products. Their softness also allows TPE seals to form tight, adaptive contact with surfaces of varying geometries, making them ideal in applications where tolerances are inconsistent or subject to change, such as thermal expansion.

In building applications, TPE profiles are increasingly used in fenestration systems for flexible glazing gaskets and thermal break elements. Their acoustic and impact-absorbing properties also make them valuable in interior finishing systems and modular components. Unlike PVC, TPE can be co-extruded with other materials (like hard plastics), enabling multi-material profiles in a single production run.

Performance Considerations

Beyond physical properties and use cases, other performance metrics such as temperature resistance, sustainability, and lifecycle costs play an important role in material selection. Understanding how PVC and TPE behave under real-world conditions will help clarify which material is actually better suited for a which application.

Temperature Resistance

PVC maintains structural integrity at moderately high temperatures and offers decent resistance to heat deformation. However, it tends to become brittle in the lower temperatures, making it less suitable for applications exposed to sub-zero environments.

TPE, on the other hand, retains flexibility and elasticity in cold conditions and can also be formulated for high-temperature tolerance. Specialized TPE compounds can withstand operating temperatures above 120°C, and fire-retardant versions are available for critical safety applications in transportation, construction, and electrical housing.

Environmental Impact

Environmental performance is an important consideration in materials selection. TPE stands out as a recyclable material that can often be processed using energy-efficient methods, reducing overall environmental impact. In addition, many TPEs are produced without plasticizers, heavy metals, or halogenated compounds, making them safer to handle and dispose of than many other profile materials.

PVC’s environmental profile is more complex. While it is durable and long-lasting, its production and disposal raise concerns due to the use of chlorine and the generation of toxic byproducts like dioxins. Recycling of PVC is possible but limited by additives and cross-contamination risks. For companies focused on sustainability, TPE often represents a forward-looking alternative.

Cost Considerations

PVC’s widespread availability and long production history give it a cost advantage in many applications. It’s often the go-to solution for projects where budget constraints are strict and mechanical performance is not heavily demanding.

TPE, while generally more expensive up front, offers value over time. Its superior performance in dynamic and harsh conditions can reduce maintenance costs, extend service life, and support circular manufacturing through recycling. When total lifecycle costs are considered, including disposal and sustainability goals. TPE may offer better long-term value, especially in high-performance applications.

Should you switch over to TPE?

PVC and TPE are both versatile and reliable materials, each offering clear benefits depending on the intended use: 

• PVC excels in rigid, structural applications where cost efficiency and durability are the primary drivers 
• TPE provides advanced sealing performance, dynamic flexibility, and a more favorable environmental footprint, especially in modern engineered grades that rival the strength and stiffness of traditional plastics

For construction and industrial projects, the decision between PVC and TPE should be made based on application-specific requirements, environmental conditions, sustainability targets, and total lifecycle cost. With today’s advanced TPE compounds, replacing PVC even in traditionally rigid applications is increasingly possible, offering designers and engineers new flexibility in their material choices.

Whether you’re building resilient infrastructure, sealing sensitive machinery, or developing eco-conscious products, understanding the trade-offs between PVC and TPE empowers you to select the right profile material for lasting performance.

Our solutions

Our TPE profiles are widely used in the construction industry due to their insulating abilities, durability and high quality. Of course, windows and doors are the most apparent components where one could find our profiles, but so many things are still hidden from the naked eye, such as timber frames. You can read more about our customer case with Honkarakenne here.

TPE is a very versatile material, which is why it is also used in heavy industry. The pulp and paper industry requires chemical and tear resistance, which are TPE’s strong suits. We have several ways to make TPE profiles into frames, rings, hoops, and other forms that can be easily fitted into the heavy machinery used in the chemical industry. To learn more about manufacturing frames and rings, read this article.

Furthermore, we have several years of experience manufacturing regular and fireproof seals for the railway and maritime industries. Even though the profiles may look the same, their properties vary depending on the circumstances they will have to endure. One of our most recent transportation industry customer cases comes from the maritime industry, as we helped the largest cruise ship in the world, The Icon of the Seas, set sail on time. Read the full article here.

As we mentioned above, TPE is a more ecological alternative for PVC, but we have taken this even further by developing Bio-TPE profiles. Like regular TPE, Bio-TPE is fully recyclable, non-toxic, and has the same properties as regular TPE. 65% of the fossil raw materials have been replaced with bio-based oils, which makes it a much more ecological option.

Are you looking for a PVC replacement?

You are not alone. Many of our clients are looking for environmentally friendly alternatives for PVC profiles, and we are happy to help. Our experts can assist you in finding the right solution for your industry. Contact our sales team to start your journey towards a more sustainable future!