Polyurethane Plain Crown Moulding for High Ceilings
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Smooth, flat |
| Color | White |
| Density | 150-220 kg/m³ |
| Water Absorption | below 1% |
| Dimensional Stability Test | -20 °C / +70 °C |
| Fire Class | B2 (DIN 4102-1) |
| Paintable | Yes |
| Usage | Indoor + Outdoor |
| Water Resistant | Yes |
| Dimensions | 175 × 2400 × 175 mm |
| Weight | 1.47 kg |
| Sales Unit | piece |
Details
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Technical drawing: Download DWG (39 KB)
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The P83091 crown moulding profile is an exceptional architectural element designed to create a clean, modern transition between wall and ceiling surfaces. Featuring a generous 175x175 mm projection, this profile is specifically engineered to define large-scale rooms and high-ceilinged spaces, adding architectural scale without cluttering the visual field. It effectively conceals structural misalignments at ceiling corners while providing a crisp, linear frame that enhances the overall geometry of any room.
Manufactured from high-density rigid polyurethane (150-220 kg/m³), this profile offers a mechanical hardness comparable to light wood but with superior physical properties. The closed-cell structure helps the material resist moisture and humidity, with water absorption rates below 1%. It maintains exceptional dimensional stability across a broad temperature range of -20 °C / +70 °C, meaning it will not warp, shrink, expand, or crack over time.
Visually, the profile presents a deep, smooth concave cove curve framed by sharp, stepped geometric details at both the top and bottom edges. This minimalist yet structured design creates elegant shadow lines and a sense of structural depth. Its plain, desensized surface makes it highly versatile, blending effortlessly with modern, transitional, and neoclassical interior styles alike.
This durable moulding is highly suitable for premium residential and commercial applications, including spacious living areas, hotel lobbies, executive offices, and luxury retail showrooms. Thanks to its moisture resistance, it can also be safely installed in humid environments like high-end bathrooms, kitchens, and indoor pool areas where traditional plaster or MDF alternatives would deteriorate.
For installation, ensure surfaces are clean and dry before making 45-degree miter cuts. Apply a high-quality polyurethane (PU) assembly adhesive along the mounting edges—do not use silicone-based adhesives. Mechanical fastening with screws is mandatory to secure the profile during curing. Once fixed, fill joints with acrylic putty, sand smooth with 180-220 grit paper, apply an optional primer coat according to your paint manufacturer's guidelines, and finish with two coats of water-based or synthetic paint.
- With its substantial 175x175 mm dimensions, this crown moulding profile is ideal for expansive, high-ceilinged interiors (3 meters or above)
- It is perfectly suited for framing grand living rooms, hotel lobbies, corporate reception halls, and luxury dining spaces
- Because of its moisture-resistant performance, it is an excellent choice for wet areas like premium bathrooms, spas, and residential kitchens
- It can also be utilized on covered outdoor areas such as veranda ceilings and eaves, provided it is finished with a UV-resistant exterior paint
- Ensure all mounting surfaces are clean, dry, and dust-free
- Cut the profiles to the correct angles using a miter saw fitted with a fine-toothed blade
- Apply polyurethane (PU) assembly adhesive to the mounting surfaces; do not use silicone adhesives
- Secure the profile mechanically with screws to ensure stability while the adhesive cures
- Fill all joints and screw holes with an appropriate joint filler, sand smooth with 180-220 grit sandpaper, apply an optional paint-matching primer if recommended, and finish with two coats of high-quality water-based or synthetic paint
- The smooth, dense surface of this profile makes maintenance exceptionally simple
- Dust can be removed periodically with a dry cloth, and the surface can be washed with a damp cloth and mild soapy water when necessary
- Avoid using harsh abrasive cleaners, solvent-based chemicals, or wire brushes
- The profile is durable and can be lightly sanded and repainted in the future if you choose to change your interior color scheme
Can this profile be used in wet areas like bathrooms?
Yes, the closed-cell structure of the rigid polyurethane material ensures water absorption is below 1%. It performs well in humid areas and offers good resistance to rot, making it highly superior to plaster or MDF in bathrooms, kitchens, and wellness areas.
What is the recommended adhesive for mounting?
You must use a high-quality polyurethane (PU) assembly adhesive for bonding. Do not use silicone-based adhesives, as they do not provide the necessary long-term structural bond required for polyurethane profiles. Mechanical screw fastening is also mandatory.
Is the product prepainted, and do I need to apply primer?
The profile comes with a factory-applied matte white primer that prepares the surface for painting. However, because paint manufacturers do not guarantee adhesion without their own system primers, applying an additional primer coat is optional and depends on your choice of paint. Polure does not accept liability for paint performance.
How does this product compare to traditional plaster mouldings?
Unlike heavy, fragile plaster which is prone to cracking and difficult to install, this high-density (150-220 kg/m³) profile is extremely lightweight, impact-resistant, and easy to handle. It delivers perfectly sharp lines and does not crumble or degrade over time.
Can it be installed on outdoor ceilings or eaves?
Yes, it is suitable for outdoor applications such as covered veranda ceilings and eaves. However, to prevent yellowing from UV exposure, it must be coated with a high-quality, UV-resistant exterior paint.