Durable Exterior Polyurethane Moulding
Durable exterior polyurethane mouldings crafted from high-density rigid polyurethane (150-220 kg/m³) provide weather-defying architectural trim for building facades, window surrounds, and cornices. Offering wood-like mechanical toughness without cracking or peeling, these mouldings are engineered for demanding outdoor exposure. Their closed-cell structural formulation guarantees water absorption under 1%, protecting against rot, mold, and freeze-thaw cycles (-100 °C / +80 °C). Pre-primed at the factory with a white acrylic technical primer, Polure exterior mouldings must be painted with an elastic, UV-resistant exterior facade paint to prevent UV discoloration. Installation requires clean facade surfaces, 45° miter cuts, continuous PU assembly adhesive, and countersunk screw attachment (silicone adhesive is strictly forbidden). Lightly sand with 180-220 grit paper prior to painting for ideal coating durability.
Frequently Asked Questions
Why choose polyurethane for exterior architectural mouldings?
High-density polyurethane (150-220 kg/m³) offers wood-like mechanical durability, complete rot protection, water absorption under 1%, and zero distortion from heat or frost.
What paint is required for exterior polyurethane mouldings?
Apply an elastic, UV-resistant exterior facade paint. Ensure topcoat primer brand matches topcoat paint brand for maximum warranty and performance.
What adhesive should be used for installing exterior mouldings?
Always use a continuous bead of PU assembly adhesive along with mechanical screws. Silicone is forbidden.