Polyurethane Round Curved Arch and Transition Trim Model
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Flat, smooth |
| 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 204 cm |
| Dimensions | 493 × 2041 × 137 mm |
| Weight | 2.94 kg |
| Sales Unit | piece |
Details
Support
- DWG Library
- Architectural Round Arch Trim: Dimensioning and Fitting Guide
- Gallery
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P1456D307VI curved door and window arch pediment for 307 cm spans
Matching decorative casing trim designed to seamlessly combine with the P1456D307VI arched pediment. Ideal for creating elegant, cohesive door and window surrounds.
Curved architrave crown P1456D307VI for 307 cm door and window arches
This curved header profile is designed to perfectly match the P1456 straight casing molding. Create a seamless, elegant frame for your arched doors and windows with this durable polyurethane combination.
Frequently Used Together
Similar Products(Round Arch Mouldings)
This premium architectural element seamlessly blends the aesthetic contours of classical architecture with modern engineering, making it perfect for installation over doors, windows, or wide hallway transitions. Its round curved design creates a soft, welcoming transition between spaces while enhancing the overall sense of depth. Ideal for both residential and commercial projects, it adds rich volume to wall surfaces and facade transitions, elevating the architectural character of any space.
Designed for wide spans with dimensions of 493 mm in width, 2041 mm in height, and 137 mm in depth, this large-scale piece is manufactured from high-density (150-220 kg/m³) rigid polyurethane. Emulating the durability and texture of wood, this closed-cell formula offers complete resistance to water and moisture. It remains unaffected by temperature fluctuations (ranging from -100 °C / +80 °C), ensuring no shrinking, cracking, or warping.
The stepped profile structure and elegant inner curve give the product a classic crown appearance. Its smooth, sleek surface blends seamlessly into projects where modern minimalist lines meet classical details. The sharp corner lines and soft concave curves interact with light and shadow to create an aesthetic focal point. The symmetry in its details reflects the quality of traditional craftsmanship.
Thanks to its generous dimensions, it is highly preferred for high-ceiling living room transitions, hotel lobbies, villa entrance doors, and arched partitions in restaurants. With a water absorption rate of less than 1%, it can be safely installed on exteriors as an over-window pediment or entrance canopy element. It helps establish a cohesive architectural language across both interior and exterior spaces, offering designers ultimate flexibility.
Remarkably lightweight compared to heavy plaster moldings or moisture-sensitive wood, this polyurethane profile adds no static load to buildings. During installation, Polure Polfix adhesive should be applied to a clean surface, followed by mechanical fastening with screws. The factory-applied primer prepares the surface for the topcoat; however, as paint manufacturers often recommend their own primers, an additional primer coat is optional. For exterior longevity, UV-resistant paints should be preferred.
- The P1456D307VI curved arch model is a versatile architectural element thanks to its generous dimensions and elegant curved structure
- Indoors, it is primarily used to define or highlight transitions in living rooms, dining rooms, and entryways
- It creates a luxurious atmosphere in high-ceiling villas, historic building restorations, and hotel reception areas
- On exteriors, it serves as a decorative moulding or pediment above windows, adding depth and movement to the facade
- Thanks to its complete resistance to moisture and water, it maintains its pristine form for years in outdoor areas such as garden gates, verandas, and terrace arches
- Indoors, it can be combined with indirect lighting or spotlights to design modern transition corridors
- Integrated with wall panels, it helps create cohesive wall compositions in classical and neoclassical styles
- The installation surface must be clean, dry, and smooth
- Measure the arch components according to the application area and make 45-degree miter cuts if necessary
- Only Polure Polfix adhesive should be used for bonding; silicone-based adhesives must be avoided
- Due to the product's large scale and for safety reasons, mechanical fastening to the wall with screws is mandatory in addition to the adhesive
- Screw holes and joints should be filled with acrylic exterior putty, and once dry, sanded smooth with 180-220 grit sandpaper
- The factory-applied primer prepares the surface for painting; however, since paint manufacturers often recommend their own primers, an additional primer coat is optional
- Finally, complete the process by applying at least two coats of water-based or synthetic paint
- Maintenance of the polyurethane curved arch element is highly practical
- Thanks to its closed-cell structure, it is unaffected by water and moisture, allowing for easy cleaning with a damp cloth
- Avoid using abrasive chemicals, acidic solvents, or stiff brushes during cleaning
- For exterior applications, it must be painted with a UV-resistant exterior paint to protect it from the harmful effects of sunlight (UV)
- Checking the painted surface once a year and performing local paint touch-ups when necessary will extend its lifespan
- It is suitable for high-pressure water washing, but this should be done from a reasonable distance to prevent damaging the paint
Is it suitable for exterior use, and is it affected by weather conditions?
Yes, the product is fully suitable for exterior use. Thanks to its closed-cell structure, its water absorption rate is below 1%, meaning it is unaffected by weather conditions like rain, snow, and humidity, and it will not rot. It maintains its shape in temperatures ranging from -100 °C / +80 °C. However, to prevent yellowing caused by sunlight (UV) outdoors, it must be painted with a UV-resistant exterior paint after installation.
What are its advantages compared to plaster or wooden arches?
Plaster arches are quite heavy and can crack, flake, or break over time. Wood, when exposed to moisture, rots, attracts insects, and warps, leading to cracks. This product, however, has a density of 150-220 kg/m³ (production target ~160 kg/m³), offering the hardness of wood while remaining extremely lightweight and shatterproof. Assess water and moisture exposure using the product technical data, surface finish and installation details. Installation and transport are much easier and more practical compared to alternatives.
Which adhesive should be used for installation?
To ensure a secure and long-lasting bond during arch installation, only Polure Polfix adhesive should be used. Silicone or similar flexible adhesives should be avoided, as they can loosen over time on polyurethane materials. Additionally, due to the product's wide and curved design, it is mandatory to mechanically secure it to the wall with screws in addition to the adhesive.
Can the product be painted directly, or is a primer required?
Our product is shipped from the factory with a special primer coat. Although this primer prepares the surface for painting, paint manufacturers do not guarantee paint jobs done without their own system primers. Therefore, applying an additional primer coat is optional and left to the installer's preference. It can be easily painted with water-based or synthetic paints.
How are the arch dimensions adjusted for the project, and can it be cut?
Yes, this 493x2041x137 mm arch element can be easily cut, sanded, and sized using standard woodworking tools, hand saws, or miter saws. Depending on the width of your project, it can be applied modularly by cutting from the ends or joining with additional pieces. Once the joints are filled with exterior putty and sanded, the seams become completely invisible.
P1456D307VI curved door and window arch pediment for 307 cm spans
Matching decorative casing trim designed to seamlessly combine with the P1456D307VI arched pediment. Ideal for creating elegant, cohesive door and window surrounds.
Curved architrave crown P1456D307VI for 307 cm door and window arches
This curved header profile is designed to perfectly match the P1456 straight casing molding. Create a seamless, elegant frame for your arched doors and windows with this durable polyurethane combination.
Frequently Used Together
Similar Products(Round Arch Mouldings)
This premium architectural element seamlessly blends the aesthetic contours of classical architecture with modern engineering, making it perfect for installation over doors, windows, or wide hallway transitions. Its round curved design creates a soft, welcoming transition between spaces while enhancing the overall sense of depth. Ideal for both residential and commercial projects, it adds rich volume to wall surfaces and facade transitions, elevating the architectural character of any space.
Designed for wide spans with dimensions of 493 mm in width, 2041 mm in height, and 137 mm in depth, this large-scale piece is manufactured from high-density (150-220 kg/m³) rigid polyurethane. Emulating the durability and texture of wood, this closed-cell formula offers complete resistance to water and moisture. It remains unaffected by temperature fluctuations (ranging from -100 °C / +80 °C), ensuring no shrinking, cracking, or warping.
The stepped profile structure and elegant inner curve give the product a classic crown appearance. Its smooth, sleek surface blends seamlessly into projects where modern minimalist lines meet classical details. The sharp corner lines and soft concave curves interact with light and shadow to create an aesthetic focal point. The symmetry in its details reflects the quality of traditional craftsmanship.
Thanks to its generous dimensions, it is highly preferred for high-ceiling living room transitions, hotel lobbies, villa entrance doors, and arched partitions in restaurants. With a water absorption rate of less than 1%, it can be safely installed on exteriors as an over-window pediment or entrance canopy element. It helps establish a cohesive architectural language across both interior and exterior spaces, offering designers ultimate flexibility.
Remarkably lightweight compared to heavy plaster moldings or moisture-sensitive wood, this polyurethane profile adds no static load to buildings. During installation, Polure Polfix adhesive should be applied to a clean surface, followed by mechanical fastening with screws. The factory-applied primer prepares the surface for the topcoat; however, as paint manufacturers often recommend their own primers, an additional primer coat is optional. For exterior longevity, UV-resistant paints should be preferred.
- The P1456D307VI curved arch model is a versatile architectural element thanks to its generous dimensions and elegant curved structure
- Indoors, it is primarily used to define or highlight transitions in living rooms, dining rooms, and entryways
- It creates a luxurious atmosphere in high-ceiling villas, historic building restorations, and hotel reception areas
- On exteriors, it serves as a decorative moulding or pediment above windows, adding depth and movement to the facade
- Thanks to its complete resistance to moisture and water, it maintains its pristine form for years in outdoor areas such as garden gates, verandas, and terrace arches
- Indoors, it can be combined with indirect lighting or spotlights to design modern transition corridors
- Integrated with wall panels, it helps create cohesive wall compositions in classical and neoclassical styles
- The installation surface must be clean, dry, and smooth
- Measure the arch components according to the application area and make 45-degree miter cuts if necessary
- Only Polure Polfix adhesive should be used for bonding; silicone-based adhesives must be avoided
- Due to the product's large scale and for safety reasons, mechanical fastening to the wall with screws is mandatory in addition to the adhesive
- Screw holes and joints should be filled with acrylic exterior putty, and once dry, sanded smooth with 180-220 grit sandpaper
- The factory-applied primer prepares the surface for painting; however, since paint manufacturers often recommend their own primers, an additional primer coat is optional
- Finally, complete the process by applying at least two coats of water-based or synthetic paint
- Maintenance of the polyurethane curved arch element is highly practical
- Thanks to its closed-cell structure, it is unaffected by water and moisture, allowing for easy cleaning with a damp cloth
- Avoid using abrasive chemicals, acidic solvents, or stiff brushes during cleaning
- For exterior applications, it must be painted with a UV-resistant exterior paint to protect it from the harmful effects of sunlight (UV)
- Checking the painted surface once a year and performing local paint touch-ups when necessary will extend its lifespan
- It is suitable for high-pressure water washing, but this should be done from a reasonable distance to prevent damaging the paint
Is it suitable for exterior use, and is it affected by weather conditions?
Yes, the product is fully suitable for exterior use. Thanks to its closed-cell structure, its water absorption rate is below 1%, meaning it is unaffected by weather conditions like rain, snow, and humidity, and it will not rot. It maintains its shape in temperatures ranging from -100 °C / +80 °C. However, to prevent yellowing caused by sunlight (UV) outdoors, it must be painted with a UV-resistant exterior paint after installation.
What are its advantages compared to plaster or wooden arches?
Plaster arches are quite heavy and can crack, flake, or break over time. Wood, when exposed to moisture, rots, attracts insects, and warps, leading to cracks. This product, however, has a density of 150-220 kg/m³ (production target ~160 kg/m³), offering the hardness of wood while remaining extremely lightweight and shatterproof. Assess water and moisture exposure using the product technical data, surface finish and installation details. Installation and transport are much easier and more practical compared to alternatives.
Which adhesive should be used for installation?
To ensure a secure and long-lasting bond during arch installation, only Polure Polfix adhesive should be used. Silicone or similar flexible adhesives should be avoided, as they can loosen over time on polyurethane materials. Additionally, due to the product's wide and curved design, it is mandatory to mechanically secure it to the wall with screws in addition to the adhesive.
Can the product be painted directly, or is a primer required?
Our product is shipped from the factory with a special primer coat. Although this primer prepares the surface for painting, paint manufacturers do not guarantee paint jobs done without their own system primers. Therefore, applying an additional primer coat is optional and left to the installer's preference. It can be easily painted with water-based or synthetic paints.
How are the arch dimensions adjusted for the project, and can it be cut?
Yes, this 493x2041x137 mm arch element can be easily cut, sanded, and sized using standard woodworking tools, hand saws, or miter saws. Depending on the width of your project, it can be applied modularly by cutting from the ends or joining with additional pieces. Once the joints are filled with exterior putty and sanded, the seams become completely invisible.