Polyurethane Plain Round Arch Frame Model
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Flat, smooth-surfaced round-curve form |
| 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 |
| Diameter | Ø 199 cm |
| Dimensions | 72 × 1988 × 994 mm |
| Sales Unit | piece |
Details
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Technical drawing: Download DWG (149 KB)
Frequently Used Together
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The P14D30D160VI is a high-performance architectural component designed to frame arched doorways, windows, and decorative wall recesses. Featuring a clean, smooth, non-ornamented profile, this semi-circular arch trim brings a balanced classical geometry to contemporary and traditional building designs alike. It serves as a durable, lightweight alternative to heavy plaster or high-maintenance timber architraves, ensuring structural integrity without adding dead load to wall assemblies.
With a generous span of 1988 mm, a height of 994 mm, and a profile thickness of 72 mm, this framing element is ideal for standard double-door spans and medium-to-large window headers. Manufactured from rigid polymer with a density of 150-220 kg/m³, the material offers the structural firmness of solid wood while remaining incredibly lightweight. It boasts a water absorption rate below 1%, making it highly resistant to swelling, rot, or fungal decay. Its exceptional dimensional stability ensures it remains free from warping or shrinking within a temperature range of -20 °C / +70 °C.
The visual profile of this arch is defined by its clean, stepped concentric curves that elegantly transition from the inner radius to the outer edge. This smooth, non-patterned texture allows it to blend seamlessly into various design languages, from sleek minimalist facades to neo-classical interior alcoves. The factory-applied primer coat creates a highly receptive surface for final painting, allowing designers to easily match the trim to adjacent masonry, wood, or drywall finishes.
Engineered for both interior and exterior environments, this round arch is highly versatile. Outdoors, it serves as an elegant window hood or decorative pediment arch for residential villas and boutique hotel facades. Indoors, it can be utilized to frame transitional archways between living spaces, create grand entrances in hotel lobbies, or outline decorative wall niches in upscale restaurants.
Installing this lightweight arch is straightforward compared to traditional plaster casts. The process requires preparing a clean, dry surface, applying a high-quality polyurethane (PU) mounting adhesive to the joints and backing, and securing the piece mechanically with screws. Once the adhesive cures, joints can be filled, lightly sanded, and painted. Unlike plaster, which is prone to cracking, or wood, which requires constant sealing against moisture, this modern polymer alternative ensures a lifelong, crack-free installation.
By choosing this advanced structural trim, architects and builders achieve the timeless aesthetics of masonry framing with a fraction of the installation labor. The robust material construction guarantees that the clean, elegant lines of the arch remain sharp and beautiful for decades, making it a highly cost-effective investment for premium construction projects across Europe.
- This semi-circular arch trim is primarily classified as a decorative framing profile designed for both interior and exterior architectural applications
- On exterior facades, it is ideal for framing arched windows and main entrance doors on classical villas, historical restorations, and high-end commercial buildings, where it must be painted with UV-resistant paint to prevent yellowing
- Indoors, it acts as an elegant architectural transition between hallways, dining rooms, and foyers
- It is also highly effective for creating dramatic recessed wall niches, framing decorative mirrors, or defining backdrops in luxury hotel lobbies, restaurants, and executive offices
- Its paintable, moisture-resistant nature allows for seamless integration into high-humidity areas like enclosed verandas or indoor pool lounges
- Ensure the mounting surface is clean, dry, and structurally sound
- Measure and dry-fit the arch to align with the vertical jamb profiles
- Apply a generous bead of polyurethane (PU) mounting adhesive along the rear mounting channels and joinery edges
- Press the arch firmly into place and secure it mechanically using non-corrosive screws to ensure a permanent bond
- Wipe away any excess adhesive immediately
- Once cured, countersink the screws and fill the screw holes and joints with a premium acrylic or polyurethane filler
- Lightly sand the joints using 180-220 grit sandpaper once dry
- While the product comes pre-primed from the factory, applying an optional compatible primer is recommended to ensure paint manufacturer warranties before applying two coats of high-quality water-based or synthetic paint
- For exterior installations, UV-resistant paint is mandatory
- Thanks to its closed-cell structure and high density, the arch requires minimal maintenance
- For interior installations, occasional dusting or wiping with a damp cloth is sufficient
- On exterior facades, the surface can be washed down with low-pressure water to remove dust and environmental grime; avoid using high-pressure power washers or abrasive acidic cleaning agents
- Inspect the exterior paint finish every few years to ensure the UV-protective coating remains intact, repainting only as necessary to prevent discoloration
- The material is highly impact-resistant but should be protected from sharp mechanical impacts
Can this arch be used on outdoor building facades?
Yes, the P14D30D160VI is highly suited for outdoor use. Thanks to its rigid polyurethane composition, it has a water absorption rate under 1%, meaning it will not rot, swell, or warp when exposed to rain or snow. However, because raw polyurethane can yellow under direct sunlight, it is mandatory to paint the arch with a high-quality, UV-resistant exterior paint to protect it from solar degradation.
What is the best adhesive to use for installing this arch?
For a secure and permanent installation, you must use a high-quality polyurethane (PU) mounting adhesive. Do not use standard silicone or hot glues, as they do not provide the necessary structural bond. Mechanical fastening with screws is also mandatory alongside the adhesive to support the arch while the glue cures and to ensure long-term stability.
How does this polyurethane arch compare to traditional plaster or gypsum arches?
Unlike heavy plaster arches, which are fragile, difficult to transport, and prone to cracking over time, this high-density polymer arch is lightweight, shatterproof, and easy to handle. It offers the same fine detail and smooth finish as plaster but installs in a fraction of the time with minimal structural load, making it a far safer and more cost-effective option.
Does the arch come prepainted, and do I need to prime it?
The arch is delivered with a white, factory-applied primer coat that prepares the surface for final painting. While this factory primer makes the surface ready for paint, paint manufacturers typically do not guarantee their coatings unless their own specific primers are used. Therefore, applying an additional primer is optional and left to the installer's discretion; Polure does not accept liability for paint performance.
Can the dimensions of this arch be adjusted or cut during installation?
Yes, the high-density material can be cut, mitered, and sanded easily using standard woodworking tools like a hand saw or miter saw. If your doorway or window span is slightly narrower than the 1988 mm width, you can carefully trim the ends of the arch to achieve a seamless alignment with your vertical side moldings.