Polyurethane Handrail and Balustrade Top Profile Design
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Flat, smooth |
| 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 | 278 × 2400 × 50 mm |
| Weight | 3.57 kg |
| Sales Unit | piece |
Details
Support
Technical drawing: Download DWG (41 KB)
Similar Products(Handrails and Balusters)
The PBK28 polyurethane handrail profile is a high-strength architectural element designed for balcony railings, terrace borders, and parapet tops. With its wide structure and clean linear lines, it serves as an elegant top capping profile in both classical and modern facade designs. It offers an innovative, long-lasting alternative to heavy traditional marble or high-maintenance wooden handrails.
Featuring a width of 278 mm, the profile provides a highly stable and wide mounting surface, while its 2400 mm length ensures a seamless appearance with minimal joints over long spans. The 50 mm height offers an ideal grip and a robust visual presence. Engineered with high-density rigid polyurethane (150-220 kg/m³), it delivers a wood-like hardness. Thanks to its closed-cell technology, water absorption is kept below 1%, largely preventing structural issues like moisture damage, rot, and swelling.
In terms of aesthetics, the PBK28 model features a smooth, flat top surface complemented by stepped, softened transition details along its edges. The specialized channel design on the underside allows it to sit perfectly atop balusters, posts, or load-bearing metal frames, ensuring flawless alignment and ease of installation.
This durable profile is highly favored in luxury residential projects, villas, hotel balconies, spacious terraces, and historical restoration projects. It offers versatile functionality, serving both to protect and beautify exterior parapet walls and to top wide interior staircases as a premium handrail.
Thanks to its lightweight composition, it does not add static load to buildings and is significantly faster to install on-site compared to heavy concrete or cast alternatives. During installation, Polure Polfix polyurethane adhesive should be applied to the cleaned surface, and mechanical fastening with screws is highly recommended for safety. Pre-primed at the factory, the profile is ready for topcoat painting. When finished with UV-resistant paints for outdoor applications, it ensures long-lasting, low-maintenance use.
- Thanks to its wide cross-section, the PBK28 polyurethane handrail profile serves as a versatile capping element for both exterior and interior projects
- Its primary application areas include balcony railing tops for private villas and residences, terrace borders for hotels and restaurants, parapet wall capping for garden walls, and wide interior stair handrails
- As a decoration tip: you can combine this wide profile with classic polyurethane baluster models to create grand balustrade systems reminiscent of palace and mansion architecture
- For exterior applications, it can be installed slightly projecting beyond the parapet edge to act as a drip edge, channeling rainwater away from the wall
- The application surface must be completely free of dust, moisture, and grease
- Measure the profile according to the installation area and make 45-degree miter cuts at the corners
- Apply Polure Polfix polyurethane adhesive to the joints and the mounting surface
- In addition to the adhesive, mechanical fastening with screws is mandatory for safety
- Cover screw heads and joints with exterior acrylic filler; once dry, sand smooth using 180-220 grit sandpaper
- An additional primer recommended by your paint manufacturer can optionally be applied over the factory-applied primer
- Complete the installation by applying at least two coats of UV-resistant paint for outdoor use, or water-based/synthetic paint for indoor use
- The polyurethane handrail surface can be easily cleaned with a damp cloth
- For outdoor applications, washing with high-pressure water is perfectly safe
- Avoid using abrasive chemicals or stiff wire brushes that could scratch the surface during cleaning
- To extend the lifespan of the paint and maintain UV protection, we recommend inspecting the exterior paint every few years and refreshing the topcoat if necessary
Will the PBK28 polyurethane handrail be affected by rain outdoors?
No, the PBK28 model is moisture-resistant thanks to its closed-cell structure and low water absorption (below 1%). Unlike wood, it will not swell, rot, or crack, making it perfectly safe for outdoor conditions.
Is it sufficient to use only silicone adhesive during installation?
No, silicone adhesive should never be used for installation. For a secure and long-lasting bond, you must use Polure Polfix polyurethane adhesive, supplemented by mandatory mechanical fastening with screws.
Does the product come painted, and is an additional primer required?
Our product is delivered with a factory-applied white primer and is ready for painting. However, since paint manufacturers do not guarantee applications done without their own primers, applying an additional primer before painting is optional and left to the customer's preference.
What advantages does it offer compared to concrete handrails?
Polyurethane handrails are extremely lightweight compared to concrete alternatives, adding no static load to the building. They carry a low risk of cracking or breaking, and the installation is significantly faster and cleaner.
What is the purpose of the channel underneath the profile?
The channel on the underside of the profile ensures perfect alignment with the metal framework, parapet wall, or baluster tops upon which the handrail sits, making the installation structurally much more robust.