Curved Architrave Header

Polure curved architrave header delivers magnificent arched architectural framing for luxury entryways, window pediments, and interior portal passages. Manufactured from high-density rigid polyurethane (150-220 kg/m³), this arched header molding offers wood-like mechanical durability while remaining lightweight to prevent wall overload. Featuring a closed-cell composition with water absorption under 1%, it will not rot, mold, swell, or split when exposed to outdoor weather or indoor humidity across temperatures from -100 °C / +80 °C. Rated Class B2 for self-extinguishing fire safety, it arrives pre-coated with factory white acrylic technical primer. Designed as a wall-mounted decorative crown, it fits over pilasters and doorway frames. Installation requires continuous polyurethane assembly adhesive along contact faces, paired with mechanical countersunk screws. Fill seams with acrylic putty, sand smooth with 180-220 grit paper, and finish with quality paint.