Polyurethane Baluster for Classical Balustrade Systems
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Smooth-surfaced classic turned detail, plain and symmetrically curved |
| 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 | 168 × 168 × 750 mm |
| Weight | 1.68 kg |
| Sales Unit | piece |
Details
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Technical drawing: Download DWG (46 KB)
Similar Products(Handrails and Balusters System)
The PB7516 is a high-performance decorative baluster designed to construct secure and visually striking railing systems for balconies, terraces, and grand staircases. Serving as a lightweight alternative to traditional cast stone, concrete, or moisture-sensitive timber, this architectural component delivers structural presence without adding excessive dead load to the building. It offers a practical way to achieve a premium classical aesthetic in both residential and commercial properties.
Manufactured from high-density rigid polyurethane, the PB7516 features a density of 150-220 kg/m³, providing a solid, impact-resistant surface comparable to hardwood. With dimensions of 168x168x750 mm, it has a substantial profile that works exceptionally well on larger scale facades, wide terraces, and spacious indoor stairways. Assess water and moisture exposure using the product technical data, surface finish and installation details.
In terms of design, this baluster showcases a beautifully proportioned classical turned lathe profile. It transitions smoothly from a solid square base to a symmetrically curved, bulbous middle section, punctuated by crisp ring details, and finishes with a matching square top capital. This geometric harmony ensures a clean alignment with upper handrails and lower base rails, making it a versatile fit for neoclassical, Mediterranean, or Georgian architectural styles.
Perfect for demanding outdoor environments, the PB7516 is commonly specified for coastal villa balconies, hotel terrace boundaries, French balconies, and pool surrounds. Indoors, it acts as a majestic support for main staircases and mezzanine railings. Its smooth, non-porous surface ensures that once painted, the balusters maintain a uniform and immaculate finish that is easy to clean and maintain.
Installing the PB7516 involves securing the top and bottom blocks mechanically with internal metal dowels or structural screws, combined with polyurethane (PU) mounting adhesive on all joint surfaces. The product comes pre-treated with a factory-applied primer that prepares the surface for painting. However, because paint manufacturers do not guarantee adhesion without their own brand-specific primers, applying an additional primer is optional and at the discretion of the installer. For exterior applications, finishing with a high-quality, UV-resistant paint is mandatory to prevent discoloration over time.
- This classical baluster is designed for heavy-duty decorative railing applications
- It is ideal for exterior residential balconies, large estate terraces, patio boundaries, French balconies, and pool-side safety barriers
- Indoors, it serves as a robust and decorative spindle for grand foyer staircases, double-height loft mezzanines, and hotel lobby stairs
- To create a cohesive look, pair these spindles with compatible top handrails and bottom base profiles, keeping spacing compliant with local building safety codes
- Ensure all mounting surfaces are clean, dry, and level
- Insert a central metal rod or heavy-duty dowel through the baluster core into the floor and handrail for structural stability
- Apply polyurethane (PU) mounting adhesive to both the top and bottom contact areas
- Slide the baluster into place and secure it mechanically
- Fill any gaps or screw holes with a high-quality exterior grade filler, sand with 180-220 grit paper, apply an optional secondary primer if required by your paint manufacturer, and apply at least two coats of UV-resistant exterior paint
- Requires minimal maintenance
- Clean periodically with water and a mild detergent using a soft cloth or a low-pressure hose
- Avoid using abrasive scrubbers or harsh chemical solvents
- For outdoor installations, inspect the paint coating every few years and reapply UV-resistant topcoats as needed to preserve the underlying material from sun exposure
Can the PB7516 polyurethane baluster be used for structural safety railings?
Yes, but because polyurethane is a decorative, lightweight material, the structural integrity of the railing system must come from internal reinforcement. During installation, heavy-duty steel or threaded metal rods must run through the center of each baluster, anchoring them firmly to the subfloor and the handrail to meet local load-bearing safety codes.
How does this product perform in wet or coastal environments?
Assess water and moisture exposure using the product technical data, surface finish and installation details. Unlike wood, it is resistant to rotting, warping, or swelling, and unlike iron or concrete, it will not rust or crumble from salt air exposure, making it ideal for coastal properties.
Do I need to apply a primer before painting the baluster?
The product arrives with a factory-applied primer that prepares the surface. However, since paint manufacturers typically do not guarantee paint adhesion without their own brand-specific primers, applying an additional primer layer is optional and left to the customer's discretion. Polure does not take responsibility for paint performance.
What type of adhesive should be used during installation?
You must use a high-quality polyurethane (PU) mounting adhesive on all joint connections and contact points. Do not use standard silicone adhesives, as they do not provide the necessary bond strength or chemical compatibility required for long-term outdoor stability.
Is the white surface UV-resistant out of the box?
No, raw or merely primed polyurethane can yellow when exposed to direct sunlight. For all outdoor installations, it is mandatory to coat the balusters with a high-quality, UV-resistant exterior paint to protect them from solar degradation.