The architectural detailing of modern interiors requires precise, clean lines that conventional materials struggle to provide. Polure’s high-density Düz moulding strip Köşesi (flat dado rail corner) range offers an advanced, engineered alternative to traditional gypsum plaster and timber. Manufactured from rigid polyurethane (PU) with a high-density rating of 150-220 kg/m³ (production target ~160 kg/m³), these flat corner elements combine the structural hardness of natural wood with the lightweight versatility of modern polymers. Featuring a closed-cell micro-cellular structure, they ensure zero warping, shrinking, or swelling under variable environmental conditions, making them the preferred choice for premium residential and commercial wall paneling schemes across Europe.
Technical Specifications and Structural Integrity
Polure’s Düz moulding strip Köşesi components are molded using state-of-the-art CNC steel and aluminum tooling. This guarantees a mathematically perfect 90-degree angle for every single piece, eliminating the need for complex, time-consuming miter cuts on site. The technical performance of our rigid PU material includes:
- Density Profile: 150-220 kg/m³ (production target ~160 kg/m³), providing high impact resistance while remaining lightweight and easy to handle.
- Thermal Stability: Temperature tolerance ranging from -100 °C / +80 °C with absolutely no structural deformation or loss of shape.
- Moisture Resistance: Water absorption rate of less than 1% due to the closed-cell polymer structure, preventing rot, mold, and mildew.
- Fire Performance: Self-extinguishing properties (the material ceases to burn once the external flame source is removed).
- Dimensional Stability: High resistance to expansion, contraction, or joint cracking over time.
Dimensional Versatility for Architectural Scaling
To accommodate diverse spatial volumes and design intentions, our Düz moulding strip Köşesi collection is available in a precisely calibrated range of sizes. Selecting the correct scale is critical to maintaining visual balance within a space:
- Compact and Subtle Detailing: For low ceilings, narrow corridors, or minimalist paneling, the P85002A (111x111x15 mm) provides a discrete yet clean transition. The P85002D8 (128x128x14 mm) offers a highly balanced, standard-scale corner perfect for typical residential wall framing. For a slightly more pronounced profile depth, the P85008B (133x133x20 mm) adds a structured, tactile presence.
- Medium to Large Scale Proportions: In larger rooms or commercial spaces, the P85002M (183x183x14 mm) and P85002D15 (198x198x14 mm) deliver a bolder frame definition. The P85002F (200x200x15 mm) and the thicker P85008A (200x200x20 mm) are designed to frame high-contrast wall coverings or deep paint transitions.
- Grand Scale and Premium Volume: For high-ceilinged lobbies, exhibition halls, or historic renovations, the P85016C (255x255x22 mm) provides maximum visual weight and structural depth.
Surface Preparation and Coating Standards
Each Düz moulding strip Köşesi element is delivered pre-treated with a high-grade factory primer (primer coat) designed to optimize topcoat adhesion. This factory-applied primer creates an ideal surface structure for both water-based and synthetic paints. However, please note that paint manufacturers generally do not guarantee paint adhesion unless their proprietary primers are applied directly to the substrate. Therefore, applying an additional primer coat on-site is optional and remains at the sole discretion and responsibility of the client. Polure does not provide paint warranties nor accept liability for third-party coating performance. For any outdoor or high-exposure exterior applications, the use of a high-quality, UV-resistant exterior paint is strictly mandatory to prevent polyurethane yellowing under direct sunlight.
Usage Areas
The Düz moulding strip Köşesi (flat dado rail corner) is highly versatile, serving both interior architectural detailing and exterior facade ornamentation. In residential interiors, it is commonly applied to create clean-lined wainscoting and wall frames in living rooms, dining halls, and master suites (especially as a backdrop for headboards). Its water-resistant properties make it an excellent choice for high-humidity areas such as luxury bathrooms, kitchens, and wellness spas. In commercial developments, these flat corner elements define panels in hotel lobbies, restaurant dining rooms, and executive office spaces, beautifully separating wallpapers from painted walls. Externally, when finished with UV-resistant coatings, they are utilized to frame window surrounds, entryways, pilasters, and decorative facade paneling on modern villa projects.
Installation
Installing the Plain Panel Trim Corner requires precision and the correct materials. 1) Surface Preparation: Ensure the substrate is completely clean, dry, and free of dust or grease. 2) Marking: Use a laser level to mark the exact 90-degree corner placements on the wall. 3) Cutting: Since the Plain Panel Trim Corner is pre-molded to a perfect 90-degree angle, do not cut the corner piece itself. Only the straight connecting dado rails need to be cut flat (zero-degree cut) to butt seamlessly against the corner element. 4) Adhesive Application: Apply a high-strength polyurethane (PU) assembly adhesive evenly to the rear bonding surface. Do not use silicone adhesives. 5) Mechanical Fastening: Press the piece firmly onto the wall. Mechanical fastening using screws is mandatory to secure the piece during the adhesive curing phase. 6) Finishing: Fill screw holes and joint lines with a high-quality putty. Once dry, sand the joints smoothly using 180-220 grit sandpaper. Apply an optional primer coat if desired, followed by two coats of premium interior or exterior paint.
Care Information
Thanks to its closed-cell rigid polyurethane formulation, maintaining the Plain Panel Trim Corner is exceptionally straightforward. Regular cleaning requires only a soft, damp microfiber cloth and a mild, non-abrasive detergent or soapy water. Avoid using harsh chemical agents, bleach, or acidic cleaners, as these can degrade the topcoat paint layer. The material is completely inert, meaning it will not rot, warp, attract insects, or foster mold growth. We recommend checking the acrylic filler at the joint seams annually to ensure no settlement cracks have formed in the building structure; any minor gaps can be easily touched up with standard interior putty and paint.