





Polyurethane Round Arch and Transition Decor
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Smooth, flat curved |
| 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 84 cm |
| Dimensions | 137 × 840 × 420 mm |
| Sales Unit | piece |
Details
Support
- DWG Library
- Architectural Round Arch Trim: Dimensioning and Fitting Guide
- Gallery
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- Contact
Arched pediment crown molding for 44 cm door and window arches P1456D44VI
Decorative trim ornament designed to complement the P1456D44VI arched header. Create a cohesive and elegant look around your doors and windows with matching profiles.










Matching P1456 straight trim profile for P1456D44VI arched door and window headers
The P1456 straight molding profile perfectly aligns with the P1456D44VI arched crown. Designed for 44 cm arches, it ensures a seamless transition and a professional finish for your door or window frames.
Alternative curved arch profiles with the same dimensions as P1456D44VI
These curved arch models share the exact same dimensions as P1456D44VI but offer different design styles. Perfect for customizing your decorative projects while ensuring a seamless fit.
Frequently Used Together






























































Similar Products(Round Arch Mouldings)






















































































































































Designed to enrich transition areas and facade designs in architectural projects, the P1456D44VI round arch is a premium structural element combining aesthetic integrity with high durability. It is specially engineered to create a smooth, elegant curve over doors, windows, or within interior corridor transitions. While eliminating the heavy structural loads associated with traditional stone, marble, or plaster arches, its long-lasting nature makes it a highly preferred choice for modern restoration and next-generation construction projects.
With detailed technical dimensions of 137 mm depth, 840 mm outer width, and 420 mm height, this curved decor establishes a flawless symmetrical balance in any space thanks to its ideal circular proportions. The rigid raw material with a density of 150-220 kg/m³ (production target ~160 kg/m³) used in its production provides a wood-like surface hardness and high impact resistance. Thanks to its closed-cell structure, this specialized material has a water absorption rate of under 1%, offering complete protection against adverse external factors such as moisture, humidity, rotting, swelling, or insect infestation.
Visually, the product features striking, smooth, and stepped concentric circular rings on its surface. These concentric rings create beautiful shadows under natural and artificial lighting, adding a sense of depth to the space. Blending classical Roman arch forms with modern minimalist lines, this unique profile creates sharp, clean, and prestigious contours on any surface. The factory-applied white primer prepares the surface for the final coat, ensuring a flawless and smooth finish.
Offering a wide range of applications, this arch model can be safely installed both indoors and outdoors. In interior design, it serves as a stunning focal point in spacious living room transitions, hotel lobbies, or elegant restaurant corridors. Outdoors, it is ideal for window pediments, villa facade designs, and decorative garden wall niches. Unlike fragile plaster or concrete alternatives, it eliminates the risk of breakage or waste during transportation, cutting, and installation.
During installation, Polure Polfix adhesive should be applied to a clean, dry surface, followed by mechanical fastening with screws. Once screw holes and joints are filled with high-quality filler and sanded smooth, the painting phase can begin. Although the factory primer prepares the surface, paint manufacturers may not guarantee applications done without their own primers; therefore, applying an additional primer is optional and at the customer's discretion. For exterior applications, using UV-resistant exterior paint is mandatory to prevent yellowing caused by sunlight.
- This round curved arch is primarily used in door and window framing projects (casing/molding applications) and interior transition corridors
- It is ideal for creating aesthetic arched ceiling or wall transitions in spacious living room openings, hotel lobbies, villa entrance doors, restaurant niches, and classical facade restorations
- It can be safely used in humid areas and on exterior facades when finished with the correct paint application
- The installation surface must be dry, dust-free, and clean
- Apply Polure Polfix adhesive to the back of the arch and position it onto the surface
- Next, mechanical fastening with screws is mandatory to support the product's weight and ensure secure fixing
- Fill screw heads and joints with an exterior-grade filler, then sand smooth using 180-220 grit sandpaper
- After optionally applying an additional primer, paint with at least two coats of water-based or synthetic paint
- The use of UV-resistant paint is mandatory for outdoor applications
- Assess water and moisture exposure using the product technical data, surface finish and installation details
- Avoid using abrasive acids, stiff brushes, or solvent chemicals like paint thinner during cleaning
- For outdoor applications, it is recommended to inspect the painted surface every few years and touch it up if necessary to extend the lifespan of the paint
Will it yellow if used on exterior facades?
Unpainted raw material may yellow when exposed to direct sunlight. Therefore, for exterior applications, it must be painted with a high-quality UV-resistant exterior paint after installation. Once painted, the product will maintain its shape and color for a long time.
Which adhesive should be used for installation?
For a secure and long-lasting installation, only Polure Polfix adhesive should be used. Silicone-based adhesives should be avoided as they may flex over time. Additionally, mechanical fastening with screws is mandatory in addition to gluing.
What are its advantages compared to plaster arches?
Include the product weight and fixing loads when assessing the substrate and supporting structure. Being completely resistant to water and moisture, it will not crumble, mold, or crack. Its details are significantly sharper and smoother.
Can the product be used directly without painting?
The product is shipped from the factory with a white primer coat. However, to achieve an aesthetic look, conceal joints, and ensure protection against external factors, it is highly recommended to apply at least two coats of water-based or synthetic paint after installation. Applying an additional primer is optional, often preferred to meet the warranty terms of specific paint manufacturers.
Which architectural styles is the P1456D44VI model suitable for?
Thanks to its stepped circular contours, it seamlessly complements classical, neoclassical, and Ottoman architecture, as well as modern minimalist designs. Its clean, smooth lines are ideal for any project seeking a prestigious look without clutter.
Arched pediment crown molding for 44 cm door and window arches P1456D44VI
Decorative trim ornament designed to complement the P1456D44VI arched header. Create a cohesive and elegant look around your doors and windows with matching profiles.










Matching P1456 straight trim profile for P1456D44VI arched door and window headers
The P1456 straight molding profile perfectly aligns with the P1456D44VI arched crown. Designed for 44 cm arches, it ensures a seamless transition and a professional finish for your door or window frames.
Alternative curved arch profiles with the same dimensions as P1456D44VI
These curved arch models share the exact same dimensions as P1456D44VI but offer different design styles. Perfect for customizing your decorative projects while ensuring a seamless fit.
Frequently Used Together






























































Similar Products(Round Arch Mouldings)






















































































































































Designed to enrich transition areas and facade designs in architectural projects, the P1456D44VI round arch is a premium structural element combining aesthetic integrity with high durability. It is specially engineered to create a smooth, elegant curve over doors, windows, or within interior corridor transitions. While eliminating the heavy structural loads associated with traditional stone, marble, or plaster arches, its long-lasting nature makes it a highly preferred choice for modern restoration and next-generation construction projects.
With detailed technical dimensions of 137 mm depth, 840 mm outer width, and 420 mm height, this curved decor establishes a flawless symmetrical balance in any space thanks to its ideal circular proportions. The rigid raw material with a density of 150-220 kg/m³ (production target ~160 kg/m³) used in its production provides a wood-like surface hardness and high impact resistance. Thanks to its closed-cell structure, this specialized material has a water absorption rate of under 1%, offering complete protection against adverse external factors such as moisture, humidity, rotting, swelling, or insect infestation.
Visually, the product features striking, smooth, and stepped concentric circular rings on its surface. These concentric rings create beautiful shadows under natural and artificial lighting, adding a sense of depth to the space. Blending classical Roman arch forms with modern minimalist lines, this unique profile creates sharp, clean, and prestigious contours on any surface. The factory-applied white primer prepares the surface for the final coat, ensuring a flawless and smooth finish.
Offering a wide range of applications, this arch model can be safely installed both indoors and outdoors. In interior design, it serves as a stunning focal point in spacious living room transitions, hotel lobbies, or elegant restaurant corridors. Outdoors, it is ideal for window pediments, villa facade designs, and decorative garden wall niches. Unlike fragile plaster or concrete alternatives, it eliminates the risk of breakage or waste during transportation, cutting, and installation.
During installation, Polure Polfix adhesive should be applied to a clean, dry surface, followed by mechanical fastening with screws. Once screw holes and joints are filled with high-quality filler and sanded smooth, the painting phase can begin. Although the factory primer prepares the surface, paint manufacturers may not guarantee applications done without their own primers; therefore, applying an additional primer is optional and at the customer's discretion. For exterior applications, using UV-resistant exterior paint is mandatory to prevent yellowing caused by sunlight.
- This round curved arch is primarily used in door and window framing projects (casing/molding applications) and interior transition corridors
- It is ideal for creating aesthetic arched ceiling or wall transitions in spacious living room openings, hotel lobbies, villa entrance doors, restaurant niches, and classical facade restorations
- It can be safely used in humid areas and on exterior facades when finished with the correct paint application
- The installation surface must be dry, dust-free, and clean
- Apply Polure Polfix adhesive to the back of the arch and position it onto the surface
- Next, mechanical fastening with screws is mandatory to support the product's weight and ensure secure fixing
- Fill screw heads and joints with an exterior-grade filler, then sand smooth using 180-220 grit sandpaper
- After optionally applying an additional primer, paint with at least two coats of water-based or synthetic paint
- The use of UV-resistant paint is mandatory for outdoor applications
- Assess water and moisture exposure using the product technical data, surface finish and installation details
- Avoid using abrasive acids, stiff brushes, or solvent chemicals like paint thinner during cleaning
- For outdoor applications, it is recommended to inspect the painted surface every few years and touch it up if necessary to extend the lifespan of the paint
Will it yellow if used on exterior facades?
Unpainted raw material may yellow when exposed to direct sunlight. Therefore, for exterior applications, it must be painted with a high-quality UV-resistant exterior paint after installation. Once painted, the product will maintain its shape and color for a long time.
Which adhesive should be used for installation?
For a secure and long-lasting installation, only Polure Polfix adhesive should be used. Silicone-based adhesives should be avoided as they may flex over time. Additionally, mechanical fastening with screws is mandatory in addition to gluing.
What are its advantages compared to plaster arches?
Include the product weight and fixing loads when assessing the substrate and supporting structure. Being completely resistant to water and moisture, it will not crumble, mold, or crack. Its details are significantly sharper and smoother.
Can the product be used directly without painting?
The product is shipped from the factory with a white primer coat. However, to achieve an aesthetic look, conceal joints, and ensure protection against external factors, it is highly recommended to apply at least two coats of water-based or synthetic paint after installation. Applying an additional primer is optional, often preferred to meet the warranty terms of specific paint manufacturers.
Which architectural styles is the P1456D44VI model suitable for?
Thanks to its stepped circular contours, it seamlessly complements classical, neoclassical, and Ottoman architecture, as well as modern minimalist designs. Its clean, smooth lines are ideal for any project seeking a prestigious look without clutter.

