Interior Door Jambs
Polure interior door jambs provide structurally sound, moisture-proof framing surrounds for interior doorway openings. Precision-molded from rigid high-density polyurethane (150-220 kg/m³), these casing profiles offer wood-like mechanical durability and impact resistance without the splitting, shrinking, or warping common to timber. Featuring a closed-cell polymer structure with water absorption under 1%, they resist humidity, steam, and mold growth, making them perfect for bedrooms, hallway passages, kitchens, and bathrooms. Thermally stable from -100 °C / +80 °C and rated Class B2 for fire safety, each length is delivered pre-coated with factory white acrylic primer. Installation requires applying a continuous bead of polyurethane assembly adhesive on rear contact faces and miter joints (silicone is strictly forbidden), combined with countersunk mechanical screws. Fill screw recesses and joint lines with acrylic putty, sand smooth with 180-220 grit paper, and finish with two coats of paint.
Frequently Asked Questions
What density material is used in Polure Interior Door Jambs?
Polure Interior Door Jambs are molded from high-density rigid polyurethane (150-220 kg/m³), ensuring wood-like impact resistance.
Is Interior Door Jambs suitable for damp areas like bathrooms?
Yes, with water absorption strictly under 1%, it will not warp, rot, or cultivate mold in humid interior environments.
What adhesive should be used for installing Interior Door Jambs?
Always use polyurethane assembly adhesive across back contact faces and joining edges, combined with screws. Silicone is strictly forbidden.
How do you prepare Interior Door Jambs for final painting?
Fill screw holes and miter seams with acrylic putty, sand smooth with 180-220 grit paper, and apply two coats of paint.