Exterior Column Capital
Polure exterior column capitals provide weather-resistant architectural capping for porch pillars, entrance colonnades, and outdoor facade columns. Formed from high-density rigid polyurethane (150-220 kg/m³), these exterior capitals match timber mechanical strength without rotting, splitting, or expanding during heavy rains and freeze cycles. With closed-cell water absorption under 1%, they withstand continuous atmospheric exposure between -100 °C / +80 °C. Certified B2 for fire safety, each capital is factory pre-primed with white acrylic primer. Installation is completed by applying continuous polyurethane assembly adhesive to all contact edges, securing mechanically with countersunk screws, filling holes with exterior filler, sanding smooth with 180-220 grit, and applying elastic UV-resistant exterior paint.
Frequently Asked Questions
What material is used for Polure exterior column capitals?
They are manufactured from high-density rigid polyurethane (150-220 kg/m³), offering wood-like durability and B2 fire rating.
Are exterior column capitals weather-resistant?
Yes, with water absorption below 1% and thermal stability from -100 °C / +80 °C, they resist rain, frost, and outdoor weather.
How do you install exterior column capitals?
Apply continuous PU assembly adhesive on contact edges, secure with mechanical screws, fill screw holes with filler, sand, and paint with exterior paint.
Is silicone permitted for exterior column capital mounting?
No, silicone is strictly forbidden as it degrades outdoors. Always use polyurethane assembly adhesive together with mechanical screws.