Polyurethane Round Curved Arch Designs

Designed to crown door and window openings or define interior transitions, this decorative round curved arch (model code P1456D135VIB) is a premium architectural element. Featuring a wide curved structure and an embossed keystone detail at its apex, it creates a striking visual focal point in both traditional neoclassical facades and modern buildings.

The product is manufactured from high-density rigid polyurethane (150-220 kg/m³). With a thickness of 21.1 cm, an outer width of 175 cm, and a height of 94.4 cm, it offers perfectly balanced proportions for wide window and door openings. Thanks to its closed-cell structure, water absorption is under one percent, making it resistant to harsh outdoor conditions like rain, snow, or extreme humidity. It maintains its dimensional stability between -20 °C / +70 °C, preventing cracking or expansion.

In terms of visual design, the smooth, stepped curves of the arch blend seamlessly with the acanthus leaf motif keystone at its center. This detailed keystone adds vertical movement to the circular arch form, enhancing the perception of depth on building facades. The flawless surface quality features high detail precision, beautifully reflecting the interplay of light and shadow.

This decorative element is ideal as an arched pediment over exterior windows in private villa projects, a transition arch in hotel lobbies, or a pediment over wide living room doors. Since it adds no extra static load to the building structure, it is safely preferred over plaster or concrete alternatives in restoration projects.

For installation, Polure Polfix adhesive should be applied to the cleaned surface, followed by screws for mechanical fastening. Delivered with a factory-applied white primer, the surface is ready for painting; however, applying an extra coat of primer is optional depending on the topcoat durability and paint manufacturer warranties. For exterior applications, using UV-resistant paint is highly recommended to protect against sunlight.