Classic Polyurethane Door Surround Arch Model KKAP30

The KKAP30 polyurethane door surround combination is an exclusive architectural element designed to transform standard entrances into grand statements of classical aesthetics. Engineered for wide doorways and monumental entryways, this comprehensive set seamlessly integrates side pilasters, decorative capitals, an elegant arched header, and a central keystone into a single cohesive design. Elevating the first impression of any property, it delivers exceptional durability and visual harmony for both interior transitions and exterior facades.

With dimensions of 220 mm in depth, 2160 mm in width, and 2960 mm in height, this system offers perfect proportions for grand-scale door designs. Manufactured from high-density (150-220 kg/m³) rigid polyurethane, the surround matches the hardness of wood while remaining remarkably lightweight. Its closed-cell structure ensures a water absorption rate of less than 1%, helping to reduce issues like dampness, cracking, crumbling, or rotting commonly associated with traditional plaster or cast stone. Furthermore, its dimensional stability has been tested between -20 °C and +70 °C, and it retains its shape.

The design details of the KKAP30 model draw inspiration from classical Roman and Neoclassical architecture. A decorative keystone at the apex of the arch, acanthus leaf motifs on the pilaster bases, and finely crafted corbels on the capitals add rich visual depth to the facade. Smooth transitions and symmetrical curved profiles interact beautifully with light, creating a striking three-dimensional shadow effect. Pre-primed at the factory, the surface provides an ideal base for the final topcoat of paint.

This majestic door frame is highly favored for main entrances of luxury residential projects, villas, hotel lobbies, and prestigious public buildings. When used on exteriors, it serves as a stunning focal point that defines the building's architectural identity. Indoors, it can be applied to high-ceilinged salon entrances, grand hallway transitions, or ballroom doors to evoke a palatial atmosphere. Its suitability for damp conditions also makes it ideal for semi-open terraces or vestibules.

During installation, Polure Polfix adhesive must be applied to the cleaned surface, followed by mechanical fastening with screws for secure mounting. Include the product weight and fixing loads when assessing the substrate and supporting structure. Free from issues like warping or insect infestation common to wood, it guarantees a long-lasting, maintenance-free lifespan. Once installed, joints are filled with exterior-grade filler, sanded smooth, and prepared for painting.

For the final finish, UV-resistant paints must be used on exterior applications. While the factory-applied primer simplifies preparation, an additional coat of primer can be optionally applied in line with the paint manufacturer's recommendations. KKAP30, with its maintenance-free structure designed to last for decades, is a durable and prestigious architectural investment that adds significant value to your projects.