Lightweight Stone Panels
Polure lightweight stone panels recreate authentic stone texture while eliminating the weight and installation challenges of real masonry. Manufactured from high-density rigid polyurethane (150-220 kg/m³), these panels offer wood-like mechanical durability and high impact resistance without adding heavy structural load to walls. Their closed-cell structure keeps water absorption under 1%, ensuring they will not rot, swell, mold, or attract insects in humid areas or outdoor environments. Engineered to withstand temperature extremes from -100 °C / +80 °C without warping, they possess a B2 fire safety classification. Pre-primed at the factory with a white acrylic coating, the panels are ready for topcoat application. Installation involves applying continuous PU assembly adhesive on contact edges and securing with countersunk screws. Finish by filling joints and painting with UV-resistant paint.
Frequently Asked Questions
What material are Polure lightweight stone panels made from?
Polure lightweight stone panels are made from high-density rigid polyurethane (150-220 kg/m³), delivering a realistic stone effect with high impact resistance and B2 fire rating.
Are lightweight stone panels suitable for outdoor facade installation?
Yes. Because their water absorption is under 1%, lightweight stone panels will not rot, swell, or mold, remaining stable between -100 °C / +80 °C.
How do you install lightweight stone panels onto a wall?
Cut panels with a fine-tooth saw, apply continuous polyurethane assembly adhesive on back surfaces and joints, and secure with countersunk screws. Fill screw heads with facade putty and sand before painting.
What kind of paint should be applied to lightweight stone panels?
For exterior installations, apply elastic, UV-resistant exterior paint over the factory primer after light sanding with 180-220 grit.
Is silicone adhesive permitted for mounting lightweight stone panels?
No, silicone adhesive is strictly forbidden as it lacks structural bonding strength. Only polyurethane assembly adhesive paired with screws must be used.