









Polyurethane Round Curved Arch Model
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Smooth, flat |
| Color | White |
| Density | 150-220 kg/m³ |
| Water Absorption | below 1% |
| Service Temperature | -100 °C / +80 °C |
| Fire Class | B2 (flame retardant) |
| Paintable | Yes |
| Usage | Indoor + Outdoor |
| Water Resistant | Yes |
| Diameter | Ø 116 cm |
| Dimensions | 288 × 1160 × 580 mm |
| Weight | 4.41 kg |
| Sales Unit | piece |
Details
Support
- DWG Library
- Architectural Round Arch Trim: Dimensioning and Fitting Guide
- Gallery
- Polyurethane Window Casing & Decorative Facade Profiles
- Polyurethane Round Curved Arch and Transition Trim Model
- Polyurethane Round Arch Model 155 cm
- Decorative Polyurethane Round Arch Model
- Polyurethane Round Curved Arch with Keystone
- Contact
Arched door and window pediment P1456D307VIE with 307 cm radius
This curved header profile is designed for 307 cm door or window arches. It perfectly matches the P1456 straight casing molding to create a seamless, elegant frame.
Frequently Used Together


































































Similar Products(Round Arch Mouldings)






















































































































































The P1456D307VIE polyurethane curved arch is a high-relief architectural ornament designed to crown the tops of windows and doorways. Blending the grandeur and rich detailing of classical architecture with modern manufacturing technology, this product adds depth and a distinctive character to any space. It offers a highly practical, durable, and lightweight alternative to the heavy stone or plasterwork of traditional structures, significantly reducing labor time in your projects.
The product features dimensions of 116 cm in width, 58 cm in height, and 28.8 cm in depth (wall thickness). These balanced proportions offer a perfect scale for standard door widths and medium-sized windows. Thanks to its high-density rigid polyurethane structure (150-220 kg/m³), it possesses the strength of wood but is far more impact-resistant. With its closed-cell structure that prevents water absorption (<1%), this arch retains its shape in temperatures ranging from -100 °C / +80 °C, without shrinking, expanding, or cracking.
The design details showcase a prominent embossed keystone motif at the exact center, surrounded by baroque-inspired acanthus leaf scrolls. The stepped profile of the curved main body brings a three-dimensional dynamism to the facade through the interplay of light and shadow. The angled cross-section on the back of the product ensures a flush fit against the mounting surface, helping to achieve a clean finish at the joints.
This versatile decorative element is widely preferred in residential projects, luxury villas, hotel lobbies, and historical building restorations. Indoors, it is ideal for corridor transitions, niche headers, and over-mantel wall decorations, while on exteriors, it serves as a window pediment crown or an ornamental topper for arched entryways. Thanks to its moisture-resistant properties, it can also be safely installed at the entrances of wet areas like bathrooms and spas.
Installation is carried out on dry and clean surfaces using Polure Polfix adhesive. For maximum strength and safety, mechanical fastening with screws or nails from the back of the product is mandatory. The factory-applied primer prepares the surface for painting; however, due to warranties offered by paint manufacturers on their own priming systems, applying an additional primer before the topcoat is entirely at the user's discretion. For exterior applications, a UV-resistant exterior paint must be used to protect the material from UV rays.
- This polyurethane curved arch model offers a wide range of applications in both interior design and exterior decoration
- Indoors, it is used to create focal points in wide living room transitions, hallway arches, decorative wall niche headers, and headboard wall designs
- On exteriors, it serves as a decorative keystone in over-window ornamentations (pediment crowns) of prestigious buildings such as villas, hotels, and mansions, as well as under entrance door eaves and at floor molding intersections
- It is safely preferred in wet areas, pool zones, and coastal exterior facades with high humidity, as it does not rot or attract insects
- Ensure the application surface is smooth, dust-free, and dry
- After checking the fit of the arch on the mounting surface, apply high-strength Polure Polfix adhesive to the back
- Position the product on the wall and secure it mechanically by screwing at specific points to prevent slipping until the adhesive cures
- Fill screw heads and gaps along the wall joints with a flexible exterior filler
- Once the filler dries, smooth it using 180-220 grit sandpaper
- An optional additional primer can be applied over the factory-primed surface, followed by at least two coats of water-based or synthetic paint to complete the process
- Thanks to its closed-cell structure, the polyurethane arch is unaffected by water and moisture, making maintenance extremely easy
- Dust accumulated indoors can be easily wiped away with a damp cloth
- For exterior applications, an annual surface inspection is recommended to detect any paint wear caused by weather conditions
- Any minor surface damage from impacts can be easily repaired by filling with acrylic putty, sanding, and spot-painting
Does this arch model get affected by rain and sun on exterior facades?
Since the product is made of rigid polyurethane with a closed-cell structure, it has low water absorption (below 1%), meaning it is suitable for humid conditions. However, to prevent yellowing from direct exposure to UV rays, it must be painted with a high-quality, UV-resistant exterior paint after installation.
Can I use silicone adhesive during installation?
Silicone adhesives are not recommended for installing polyurethane decorative products, as they can stretch and lose grip over time. For a secure and long-lasting bond, only Polure Polfix adhesive should be used, supplemented by mechanical fastening with screws or nails.
Can I paint the product directly after receiving it?
Our product is shipped with a factory-applied primer, which facilitates paint adhesion. You can paint it directly; however, since paint manufacturers do not guarantee applications done without their own system primers, applying an additional primer before the topcoat is optional and depends on the user's preference.
What advantages does it have over plaster or wooden arches?
It is much lighter and shatterproof compared to plaster arches, which simplifies installation and reduces the structural load. Compared to wood, it is completely resistant to moisture, water, rot, mold, and insects. Additionally, unlike soft EPS foam products, it offers high hardness and sharp detail definition with excellent impact resistance.
Are the dimensions of the arch standard, and can it be shortened by cutting?
Yes, this product is molded in standard dimensions of 288x1160x580 mm. However, if you need to adjust it to fit your installation area, it can easily be cut from the ends using standard wood-cutting hand saws or miter saws, and then smoothed with sandpaper.
Arched door and window pediment P1456D307VIE with 307 cm radius
This curved header profile is designed for 307 cm door or window arches. It perfectly matches the P1456 straight casing molding to create a seamless, elegant frame.
Frequently Used Together


































































Similar Products(Round Arch Mouldings)






















































































































































The P1456D307VIE polyurethane curved arch is a high-relief architectural ornament designed to crown the tops of windows and doorways. Blending the grandeur and rich detailing of classical architecture with modern manufacturing technology, this product adds depth and a distinctive character to any space. It offers a highly practical, durable, and lightweight alternative to the heavy stone or plasterwork of traditional structures, significantly reducing labor time in your projects.
The product features dimensions of 116 cm in width, 58 cm in height, and 28.8 cm in depth (wall thickness). These balanced proportions offer a perfect scale for standard door widths and medium-sized windows. Thanks to its high-density rigid polyurethane structure (150-220 kg/m³), it possesses the strength of wood but is far more impact-resistant. With its closed-cell structure that prevents water absorption (<1%), this arch retains its shape in temperatures ranging from -100 °C / +80 °C, without shrinking, expanding, or cracking.
The design details showcase a prominent embossed keystone motif at the exact center, surrounded by baroque-inspired acanthus leaf scrolls. The stepped profile of the curved main body brings a three-dimensional dynamism to the facade through the interplay of light and shadow. The angled cross-section on the back of the product ensures a flush fit against the mounting surface, helping to achieve a clean finish at the joints.
This versatile decorative element is widely preferred in residential projects, luxury villas, hotel lobbies, and historical building restorations. Indoors, it is ideal for corridor transitions, niche headers, and over-mantel wall decorations, while on exteriors, it serves as a window pediment crown or an ornamental topper for arched entryways. Thanks to its moisture-resistant properties, it can also be safely installed at the entrances of wet areas like bathrooms and spas.
Installation is carried out on dry and clean surfaces using Polure Polfix adhesive. For maximum strength and safety, mechanical fastening with screws or nails from the back of the product is mandatory. The factory-applied primer prepares the surface for painting; however, due to warranties offered by paint manufacturers on their own priming systems, applying an additional primer before the topcoat is entirely at the user's discretion. For exterior applications, a UV-resistant exterior paint must be used to protect the material from UV rays.
- This polyurethane curved arch model offers a wide range of applications in both interior design and exterior decoration
- Indoors, it is used to create focal points in wide living room transitions, hallway arches, decorative wall niche headers, and headboard wall designs
- On exteriors, it serves as a decorative keystone in over-window ornamentations (pediment crowns) of prestigious buildings such as villas, hotels, and mansions, as well as under entrance door eaves and at floor molding intersections
- It is safely preferred in wet areas, pool zones, and coastal exterior facades with high humidity, as it does not rot or attract insects
- Ensure the application surface is smooth, dust-free, and dry
- After checking the fit of the arch on the mounting surface, apply high-strength Polure Polfix adhesive to the back
- Position the product on the wall and secure it mechanically by screwing at specific points to prevent slipping until the adhesive cures
- Fill screw heads and gaps along the wall joints with a flexible exterior filler
- Once the filler dries, smooth it using 180-220 grit sandpaper
- An optional additional primer can be applied over the factory-primed surface, followed by at least two coats of water-based or synthetic paint to complete the process
- Thanks to its closed-cell structure, the polyurethane arch is unaffected by water and moisture, making maintenance extremely easy
- Dust accumulated indoors can be easily wiped away with a damp cloth
- For exterior applications, an annual surface inspection is recommended to detect any paint wear caused by weather conditions
- Any minor surface damage from impacts can be easily repaired by filling with acrylic putty, sanding, and spot-painting
Does this arch model get affected by rain and sun on exterior facades?
Since the product is made of rigid polyurethane with a closed-cell structure, it has low water absorption (below 1%), meaning it is suitable for humid conditions. However, to prevent yellowing from direct exposure to UV rays, it must be painted with a high-quality, UV-resistant exterior paint after installation.
Can I use silicone adhesive during installation?
Silicone adhesives are not recommended for installing polyurethane decorative products, as they can stretch and lose grip over time. For a secure and long-lasting bond, only Polure Polfix adhesive should be used, supplemented by mechanical fastening with screws or nails.
Can I paint the product directly after receiving it?
Our product is shipped with a factory-applied primer, which facilitates paint adhesion. You can paint it directly; however, since paint manufacturers do not guarantee applications done without their own system primers, applying an additional primer before the topcoat is optional and depends on the user's preference.
What advantages does it have over plaster or wooden arches?
It is much lighter and shatterproof compared to plaster arches, which simplifies installation and reduces the structural load. Compared to wood, it is completely resistant to moisture, water, rot, mold, and insects. Additionally, unlike soft EPS foam products, it offers high hardness and sharp detail definition with excellent impact resistance.
Are the dimensions of the arch standard, and can it be shortened by cutting?
Yes, this product is molded in standard dimensions of 288x1160x580 mm. However, if you need to adjust it to fit your installation area, it can easily be cut from the ends using standard wood-cutting hand saws or miter saws, and then smoothed with sandpaper.

