Door Topper Crest
Polure door topper crests create grand architectural entryways by crowning interior and exterior door frames, pediments, and window surrounds with historic pediment motifs. Manufactured from high-density rigid polyurethane (150-220 kg/m³), these door crowns deliver wood-like structural strength without heavy overhead weight. The closed-cell material features under 1% water absorption, preventing warping, rotting, or mold in humid hallways or exposed entrance portals. Rated B2 fire class, they withstand room temperatures from -100 °C / +80 °C. Factory-coated with a white acrylic primer, each crest accepts topcoat paints seamlessly. Installation requires a continuous bead of polyurethane assembly adhesive across back contact faces, secured firmly with mechanical screws.
Frequently Asked Questions
What material is the Polure door topper crest manufactured from?
Polure door topper crests are made from high-density rigid polyurethane (150-220 kg/m³), providing wood-like impact strength and B2 fire rating.
Can door topper crests be used above exterior entrance doors?
Yes. Polyurethane crests have under 1% water absorption and resist weathering, but must be painted with UV-resistant facade paint for outdoor use.
What adhesive should be used for installing a door topper crest?
Continuous polyurethane assembly adhesive must be applied along rear contact faces with countersunk screws. Silicone is strictly forbidden.
How do you prepare a door topper crest before painting?
Lightly sand the factory white acrylic primer with 180-220 grit sandpaper, then apply two coats of water-based or synthetic paint.