


Polyurethane Indirect LED Lighting Profile
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 | 49 × 2400 × 99 mm |
| Weight | 0.92 kg |
| Sales Unit | piece |
Details
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The P81321G indirect lighting profile is a premium architectural element engineered to deliver sophisticated, glare-free ambient illumination. Designed to seamlessly integrate modern LED strips, this profile projects a soft, upward wash of light that eliminates harsh shadows and visually elevates low ceilings. It acts as a sleek transition between wall and ceiling, perfect for contemporary residential and commercial interiors seeking clean, minimalist aesthetics.
With a projection of 49 mm, a height of 99 mm, and a standard length of 2400 mm, this profile is manufactured with a density of 150-220 kg/m³. This high-density formulation provides the physical durability of traditional timber without the associated weight, preventing unnecessary stress on drywall or suspended ceiling framing. Its closed-cell structure provides high resistance to moisture, helping the profile remain dimensionally stable and resist warping, shrinking, or sagging over time.
The visual profile features an elegant, multi-stepped geometric design that channels light smoothly across the ceiling plane. The integrated rear cavity is optimized to conceal LED cabling and strips, preventing direct visibility of the light source. A factory-applied white primer coat provides a smooth, uniform surface ready for finishing. While this primer simplifies painting, paint manufacturers typically require their own specialty primers to validate their product warranties; therefore, applying an additional primer coat remains optional and at the discretion of the installer.
Perfect for high-end residential living rooms, master bedrooms, and long corridors, this profile also excels in commercial venues such as hotel lobbies, corporate offices, and boutique showrooms. Unlike traditional plaster, which is prone to cracking and chipping, or MDF, which absorbs moisture and swells, this advanced polymer material remains durable with use and is highly resistant to insect damage.
Installation is efficient and clean. The profiles can be cut precisely at 45-degree angles using standard woodworking mitre saws, then fixed to dry, clean walls using polyurethane (PU) mounting adhesive and secured with mechanical fasteners. Joints and screw recesses are filled, sanded smooth with 180-220 grit sandpaper, and finished with two coats of quality water-based or synthetic paint. This low-maintenance, highly durable system offers an outstanding return on investment by reducing labor times and eliminating future repairs.
- The P81321G profile is designed exclusively for indoor applications, serving as a highly functional and decorative light trough
- In residential homes, it is most commonly installed along living room and bedroom ceilings to create cozy, indirect lighting
- It is also highly effective in long hallways and entryways, guiding the path with soft illumination
- In commercial spaces such as offices, restaurants, and luxury boutique hotels, it defines architectural borders and accentuates high ceilings
- Assess water and moisture exposure using the product technical data, surface finish and installation details
- It can also be adapted as a modern curtain pelmet, hiding drapery tracks while projecting beautiful accent lighting downward
- Ensure the wall and ceiling surfaces are clean, dry, and free of dust or grease
- Measure the walls and cut the profiles using a fine-toothed mitre saw at a 45-degree angle for clean corners
- Apply a continuous bead of polyurethane (PU) mounting adhesive along the rear mounting edges of the profile
- Press the profile firmly into place at the wall-ceiling junction
- For safety and structural integrity, secure the profile mechanically with screws or brads at regular intervals
- Fill all joints and screw holes with a high-quality interior filler
- Once dry, sand the filled areas smooth with 180-220 grit sandpaper
- Finally, apply two coats of high-quality water-based or synthetic paint to match your interior decor
- Maintaining the P81321G profile is exceptionally easy
- Due to its non-porous, moisture-resistant surface, it can be wiped clean with a damp cloth or microfiber duster to remove any dust that accumulates inside the LED channel
- Avoid using abrasive sponges or harsh chemical cleaners, as these can dull or damage the paint finish
- If you update your interior color scheme in the future, the profile can be easily repainted with standard interior wall or ceiling paints without losing its crisp geometric details
Can this lighting profile be installed in damp environments?
Assess water and moisture exposure using the product technical data, surface finish and installation details. It will not rot, warp, or absorb moisture, making it ideal for bathrooms, kitchens, and indoor pool areas.
What type of adhesive is recommended for installation?
You must use a high-quality polyurethane (PU) mounting adhesive to bond the profile securely to the wall and ceiling surfaces. Do not use silicone adhesives, as they do not provide the necessary structural hold.
Is an additional primer layer required before painting?
The profile comes pre-primed from the factory, which prepares the surface for painting. However, paint manufacturers often require their own primers to validate their paint warranties. Therefore, applying an extra primer coat is optional and depends on the paint system you choose.
How does this product compare to plaster or wood alternatives?
This lightweight profile is much easier and safer to install than heavy plaster. Assess water and moisture exposure using the product technical data, surface finish and installation details.
Will the heat from the LED strips damage the profile?
No, the high-density polymer material has had its dimensional stability tested at +70 °C. Standard decorative LED strips do not generate enough heat to affect or deform the profile in any way.