Modern architectural design depends on seamless transitions between walls and ceilings to define the volume and character of an interior space. The Kartonpiyer category by Polure offers high-density rigid polyurethane (PU) decorative profiles designed as a superior alternative to traditional gypsum plaster and heavy wood moldings. Engineered with a closed-cell structural density of 150-200 kg/m³, these profiles combine the crisp, sharp detailing of carved wood with a lightweight structure that does not add unnecessary load to the building's structural frame.
Technical Performance and Structural Integrity
Unlike fragile plaster alternatives, Polure Kartonpiyer profiles possess high impact resistance and dimensional stability. Under varying indoor climates, the material experiences no warping, shrinkage, or thermal expansion within a temperature range of -20°C to +80°C. With a negligible water absorption rate of under 1%, these rigid PU profiles are completely rot-resistant, preventing mold growth and material decay in high-humidity zones. In terms of safety, the material exhibits self-extinguishing properties, meaning it ceases to burn once the external flame source is removed.
Dimensional Variety and Architectural Profiles
The collection accommodates diverse design languages through precise dimensional variations. For compact spaces requiring subtle transitions, models like P81005 (58x2440x55 mm) and P81013 (68x2440x65 mm) offer clean proportions. Mid-scale residential projects with standard ceiling heights of 2.60 to 2.80 meters benefit from balanced profiles such as P81071 (112x2440x90 mm) and P81089 (102x2440x100 mm). For monumental public spaces, high-ceilinged lobbies, or historical restorations, prominent options like P81088 (90x2440x100 mm), P81110 (107x2440x110 mm), or the grand P81134 (125x2400x130 mm) establish visual balance. Specialty elements like 2P81175 (210x1540x470 mm) allow architects to implement elaborate custom ceiling configurations.
Surface Coating and Paint Guidelines
Each profile is shipped with a factory-applied primer that prepares the surface for paint adhesion. While this factory coating ensures a receptive surface, paint manufacturers typically do not extend performance warranties to surfaces painted without their own proprietary primers. Consequently, the application of an additional primer layer prior to final painting is optional and remains at the sole preference of the client. Polure does not guarantee any third-party paint products and accepts no liability for paint finish failures.
Usage Areas
Polure Kartonpiyer profiles are engineered for both interior and exterior architectural applications. Indoors, they provide clean junctions between ceilings and walls in residential living rooms, bedrooms, and commercial office spaces. Their moisture-resistant structure (water absorption under 1%) makes them suitable for humid indoor environments such as kitchens, bathrooms, indoor pools, and spa facilities where traditional plaster would fail. Externally, these profiles are utilized as roofline trim, under-eave moldings, and decorative cornices. For all exterior installations, applying a UV-resistant paint is mandatory to prevent the unpainted polyurethane material from yellowing under direct sunlight.
Installation
Successful installation of Polure Kartonpiyer requires adhering to a precise technical sequence. The installation surface must be clean, dry, and free of dust or loose paint. Begin by cutting the profiles at a 45-degree angle using a high-precision miter saw to ensure tight corner joints. Apply a high-quality polyurethane (PU) mounting adhesive along the rear bonding surfaces and joints; do not use silicone-based adhesives. Mechanical fixing with screws is mandatory to secure the profiles firmly while the adhesive cures. Once fixed, fill all joint lines and screw heads with a suitable joint putty. After curing, sand the puttied areas smooth using 180-220 grit sandpaper. Apply an optional primer coat if desired, and finish with two coats of high-quality water-based or synthetic paint. For exterior installations, the use of UV-resistant paint and exterior-grade putty is mandatory.
Care Information
Maintaining Polure Kartonpiyer profiles requires minimal effort due to their high-density, non-porous surface. Regular cleaning can be performed using a soft, dry, or slightly damp microfiber cloth to remove dust. Avoid using abrasive scrubbing pads, harsh chemical detergents, or alcohol-based solvents, as these can degrade the protective paint layers. Thanks to the high dimensional stability of the 150-200 kg/m³ rigid polyurethane, the profiles will not crack, crumble, or yellow over time, delivering a service life exceeding 20 years under normal indoor conditions.