XPET – manufacturer of base profiles for windows and PET foam insulation materials
XPET specializes in producing base profiles for windows, doors and HS systems, as well as construction and insulation materials using advanced Kerdyn™ Green PET foams. This innovative, recycled structural material delivers outstanding mechanical strength, excellent thermal and acoustic insulation, and minimal water uptake. It is used in construction, transport, marine, wind energy and many other sectors—combining high performance with an eco-friendly, sustainable approach.
XPET base profiles were awarded a Medal at EXPO Kielce during WinDoGlass Innovation 2026
What is XPET
Advanced PET-based structural foam
XPET – PET Foam is an advanced structural foam made from recycled polyethylene terephthalate (PET), offering exceptional dimensional stability and excellent technical performance.
The material stands out for its very low water uptake, making it ideal for applications requiring long-term moisture resistance. With a wide range of available densities, PET can be precisely tailored to meet specific design requirements.
The versatility of XPET is evident in its full compatibility with various machining technologies—from standard cutting and milling to advanced CNC shaping and thermoforming. The material provides unique benefits: 50–66% lower weight compared to plywood or MDF, excellent dimensional stability without swelling or warping, high resistance to rot and pests, and recyclability. XPET leverages these advantages to offer solutions for construction, transport, marine, and many other applications that demand lightweight, durable and eco-friendly structural materials.
- High dimensional stability
- Minimal water uptake
- Excellent insulation properties
- Wide range of densities
- Full compatibility with machining technologies
Key material properties
Why XPET is the best choice
High mechanical strength
XPET offers excellent compressive strength and high stiffness, ensuring reliability in structural applications. The stiffness-to-weight ratio is 1.5–2x better than plywood or MDF when laminated.
Resistance to temperature and chemicals
The material retains its properties across a wide temperature range and shows high resistance to most chemicals.
Lightweight structure
Despite its high strength, XPET remains a lightweight material, which significantly eases transport, installation and machining.
Excellent insulation performance
A low thermal conductivity makes XPET an outstanding insulating material, eliminating thermal bridges.
Minimal water uptake
A closed-cell structure provides very low water uptake (<2%), protecting the material from moisture-related degradation and ensuring long-term dimensional stability without swelling or distortion.
Recyclability
XPET can be fully recycled, making it an environmentally responsible choice aligned with circular economy principles.
Why XPET outperforms traditional materials
An innovative solution combining performance with sustainability
Outstanding thermal and acoustic insulation
PET base panel delivers excellent thermal insulation (2–3x better than wood-based panels) and acoustic performance, providing higher R-values and reducing sound and vibration transmission. The material eliminates thermal bridges, significantly improving a structure’s energy efficiency.
Greater durability and resistance
PET base panel shows exceptional resistance to moisture and degradation, ensuring long-term dimensional stability and maintained performance over many years of service.
Full UV resistance
The material is fully resistant to ultraviolet radiation, eliminating the need for additional protective coatings and ensuring durability in exterior exposure.
Lighter and stronger than traditional materials
PET panel is 50–66% lighter than plywood or MDF while offering a 1.5–2x better stiffness-to-weight ratio when laminated. This enables the creation of robust yet significantly lighter structures, translating to energy savings and reduced transport costs.
Simplified installation
The lower material weight compared to traditional solutions makes transport and installation much easier, reducing labor time and installation costs.
Significantly lower carbon footprint
PET panel made from recycled PET can offer up to 65% lower CO₂ emissions compared to conventional foams. Production can use up to 100% recycled material from PET bottles, supporting a circular economy and sustainable development.
Applications for XPET material
A versatile structural material for construction, transport, marine, wind energy and many other sectors
Construction and architecture
Façades and cladding panels, garage and sectional doors, windows and doors (base profiles, warm sills), internal partitions and ceilings, worktops, modular furniture and cabinets. Ideal for projects that require lightweight, moisture-resistant and thermally insulating solutions.
Transport
Walls and floors for truck trailers, interiors of trains and buses, floors and furniture in campers (RVs), partitions and doors. Weight reduction contributes to fuel savings and lower CO₂ emissions while delivering excellent thermal insulation and dimensional stability.
Marine industry
Decks, bulkheads and stringers, ceilings and ceiling linings, sterns, interior panels and furniture. XPET reduces vessel weight, improving fuel efficiency, prevents moisture ingress and provides excellent thermal and acoustic insulation for onboard comfort.
Wind energy
XPET is well suited for wind turbine blade construction as a core in shear webs, blade shells, blade root inserts and nacelle and rotor covers. The material offers high shear and compressive strength, excellent fatigue resistance and weight reduction, supporting sustainable renewable energy development.
Sandwich and structural panels
XPET used as a core in sandwich panels provides high strength combined with excellent thermal and acoustic insulation. Compatible with various resin systems and processing methods, it is ideal for demanding structural applications.
Specific application examples
Detailed uses of XPET material across different sectors
Construction and architecture
- Façades and cladding panels
- Garage and sectional doors
- Windows and doors (profiling, sills, frames)
- Internal partitions
- Ceilings and coverings
- Worktops and countertops
- Modular furniture and cabinets
- Base profiles for windows and doors
- Base profiles for garage doors
Transport
- Trailer walls
- Trailer and trailer floors
- Train interiors (panels, partitions)
- Bus interiors
- Camper (RV) floors
- Camper furniture and cabinets
- Partitions and doors
- Structural components in vehicles
Wind energy
- Shear webs
- Shell cores
- Blade root inserts
- Nacelle and rotor covers
- Access panels
- Internal reinforcements
Marine industry and others
- Vessel decks
- Bulkheads and stringers
- Ceilings and ceiling linings
- Sterns
- Interior panels
- Onboard furniture
- Sandwich panels (as core)
- Base profiles for sliding systems (PSK, HST, Slide)
Technical specifications
Detailed technical data for XPET material
XPET – PET Foam is available in a wide range of densities (80–300 kg/m³), allowing precise adaptation to the requirements of any project. The material provides excellent mechanical, thermal and acoustic properties, enabling parameter optimization depending on the application. Manufactured from up to 100% recycled PET, it helps reduce the carbon footprint by up to 65% compared to traditional foams.
Thanks to advanced production technologies, it can be processed with various machining methods—from standard cutting and milling to advanced CNC shaping and thermoforming into complex shapes. The material is compatible with a wide range of resin systems (epoxy, vinyl ester, unsaturated polyester, phenolic). Panels are available in standard sizes of 2440 x 1220 mm and thicknesses from 5 to 150 mm (depending on density), making it possible to tailor the material precisely to the most demanding project specifications. XPET offers comprehensive solutions using this advanced material.
| Parametr | Wartość |
|---|---|
| Gęstość objętościowa | PET 80 – 80 kg/m³ PET 115 – 115 kg/m³ PET 180 – 180 kg/m³ |
| Wytrzymałość na ściskanie | PET 80 – 1 N/mm² PET 115 – 1,5 N/mm² PET 180 – 3,2 N/mm² |
| Przewodność cieplna | PET 80 – 0,0270 W/mK PET 115 – 0,0332 W/mK PET 180 – 0,0403 W/mK |
| Wymiary płyty | 2440 x 1220 mm |
| Grubość płyty | 5 – 150 mm |
| Klasyfikacja ogniowa | B2 (DIN 4102) |
| Materiał podstawowy | Recyklat PET |
Note: The values provided are indicative and may vary depending on the specific density and thickness of the material. Detailed parameters are available in the technical data sheet.
Ready to collaborate?
Contact us to learn more about how this material can be used in your project. XPET specializes in processing this innovative material for construction, transport, marine and many other applications. Our experts will help select optimal material parameters and answer all technical questions.