Polyurethane Corner Piece
The polyurethane corner piece by Polure provides a seamless transition for wall frames, wainscoting borders, and panel moldings. Engineered from high-density rigid polyurethane (150-220 kg/m³), it combines structural toughness comparable to timber with a lightweight profile that will not stress wall surfaces. Featuring a closed-cell composition with less than 1% moisture absorption, it prevents rotting, swelling, and mold growth in damp indoor settings such as kitchens and bathrooms. Able to withstand temperature variations from -100 °C / +80 °C without distortion, it satisfies Class B2 flame retardancy requirements. The component is delivered pre-coated with a factory white acrylic technical primer. Installation involves securing cleaned components with fine 45° miter cuts, continuous PU assembly glue on contact joints, and mechanical countersunk screws. Seal joint gaps with acrylic filler, sand smooth with 180-220 grit paper, and finish with water-based acrylic or synthetic enamel paints.
Frequently Asked Questions
What density rating does the Polure polyurethane corner piece feature?
It features a high-density rigid polyurethane construction rating between 150-220 kg/m³ (production target ~160 kg/m³), providing wood-like mechanical durability and B2 fire safety.
Can the polyurethane corner piece withstand moisture in kitchens?
Yes, its closed-cell structure keeps water absorption under 1%, preventing swelling, mold, or rotting in high-humidity areas.
What adhesive should be used for installing the polyurethane corner piece?
Use a continuous bead of polyurethane assembly adhesive on all contact edges alongside countersunk screws. Silicone adhesives must not be used.
How is the surface prepared for topcoat painting?
Lightly sand the factory-applied white acrylic primer with 180-220 grit sandpaper to remove mold release traces before painting.