Decorative Polyurethane Corbel Bracket P507
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Relief-worked, carved-detail classic motif |
| 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 | 255 × 520 × 430 mm |
| Sales Unit | piece |
Details
Support
Technical drawing: Download DWG (165 KB)
Similar Products(Wall Brackets and Niches)
The P507 is a premium architectural bracket engineered to deliver classical grandeur to high-end residential and commercial developments. Functioning as an ornate support element, this decorative corbel brings depth and historical character to interiors and facades alike. Crafted from high-density materials, it replicates the finest plaster craftsmanship without the heavy weight or fragility associated with traditional gypsum.
Measuring 255 mm in width, 520 mm in height, and projecting 430 mm, this substantial corbel is ideal for medium-to-large scale architectural compositions. Made from rigid polyurethane with a density of 150-220 kg/m³, the component possesses a wood-like hardness. It boasts a closed-cell structure that restricts water absorption to under 1% and has dimensional stability tested between -20 °C and +70 °C, ensuring zero warping, shrinking, or cracking over time.
The visual profile of the P507 showcases a rich Baroque-inspired design. It features elegant side volutes, a prominent central floral motif, and a delicate beaded column tapering down to a refined leaf-like terminal. The molded top platform provides a clean transition to flat surfaces, creating a dramatic shadow line that enhances the relief details under various lighting conditions.
This versatile architectural element serves multiple decorative and semi-structural purposes. It can be installed beneath roof overhangs, balconies, or window pediments on exterior facades. Indoors, it acts as an elegant support for heavy-looking mantelpieces, decorative wall shelving, deep ceiling beams, or arched openings, adding historical weight to corridors, libraries, and grand salons.
Compared to traditional stone, gypsum plaster, or timber corbels, this lightweight alternative reduces labor costs and structural loads significantly. Installation requires preparing a clean, dry surface, applying a dedicated polyurethane (PU) assembly adhesive, and securing the piece mechanically with screws. After filling screw holes with external-grade joint compound and a light sanding, the factory-primed surface is ready for standard coatings. For outdoor setups, a UV-resistant topcoat is mandatory to prevent yellowing.
- The P507 decorative corbel bracket is designed for both interior embellishments and exterior facade accents
- On building exteriors, it is highly effective when placed under balconies, bay windows, roof eaves, or decorative lintels to simulate traditional load-bearing stone supports
- Inside premium residences, hotels, or restaurants, it provides an exquisite visual anchor beneath fireplace mantels, heavy ceiling beams, arched entryways, and custom library shelving
- It can also be paired with classical columns or pilasters to create sophisticated transitions in grand entryways and hallways
- Ensure the mounting surface is clean, dry, and free of dust
- Position the P507 bracket and mark the placement
- Apply a high-quality polyurethane (PU) mounting adhesive generously to the mounting flanges
- Press firmly against the wall and ceiling/beam interface
- Due to the projection size (430 mm), mechanical fastening using corrosion-resistant screws is mandatory to ensure structural safety
- Cover screw heads with a suitable filler or polyurethane mastic
- Once dry, sand the joints smoothly with 180-220 grit sandpaper
- While the factory primer prepares the surface, applying an optional high-quality primer before the final two coats of water-based or synthetic paint is recommended for optimal durability
- For indoor applications, regular dusting or wiping with a damp cloth is sufficient
- Outdoor installations can be washed with low-pressure water if needed; avoid high-pressure power washers and abrasive chemical cleaners
- We recommend inspecting the paint coating on exterior corbels every few years and applying a fresh UV-resistant topcoat if signs of weathering appear, ensuring the underlying polyurethane remains protected
Can the P507 corbel support heavy physical loads?
While rigid polyurethane is extremely dense (150-220 kg/m³) and strong, our decorative corbels are designed primarily for aesthetic purposes. They can easily support lightweight decorative shelves, mantelpieces, or trim profiles. However, they should not be used as primary load-bearing structural elements for heavy concrete balconies or structural beams without independent internal metal or wood supports.
How does polyurethane compare to gypsum plaster or wood corbels?
Polyurethane is vastly superior in durability and ease of installation. Unlike plaster, it will not crumble, chip, or shatter upon impact, and it is significantly lighter, minimizing structural stress. Unlike wood, polyurethane resists rot, warping, splitting, and wood-boring insects, and its closed-cell structure makes it moisture-resistant, making it ideal for both damp indoor zones and exposed exterior facades.
Is a special primer required before painting this bracket?
The P507 comes with a factory-applied primer that prepares the surface for painting. However, paint manufacturers typically do not guarantee adhesion unless their own primer system is used. Therefore, applying an additional primer coat is optional but highly recommended to ensure the longevity of your topcoat. Please note that Polure does not accept liability for paint performance.
What type of adhesive must be used for installation?
You must use a specialized polyurethane (PU) assembly adhesive for a secure bond. Do not use standard silicone adhesives, as they do not provide the necessary structural adhesion for polyurethane products. Additionally, mechanical fastening with screws is mandatory for a safe and permanent installation of this size.
Can this corbel be installed on exterior facades exposed to sunlight?
Assess water and moisture exposure using the product technical data, surface finish and installation details. However, because raw polyurethane can yellow under direct ultraviolet rays, it is mandatory to paint the corbel with a high-quality, UV-resistant exterior paint to protect it from sun damage and maintain its pristine look.