FAQ：

KSL composite products achieve Class B1 (EN 13501-1 Class B-s1,d0 / ASTM E84 Class A/B) flame retardancy standards. They are self-extinguishing upon flame removal and produce minimal smoke, making them fully compliant with commercial architecture and residential building safety codes.

Yes, we provide free sample kits for verified contractors, architects, and building material distributors worldwide. Our standard sample box includes color chips, 3D wood grain texture swatches, cross-section profile cutouts, and hidden fasteners. We typically dispatch sample parcels via DHL/FedEx/UPS within 1–2 business days. You only need to provide your courier account or cover the international freight.

For standard 140x25mm hollow profiles on export pallets, a 20ft container (20GP) typically loads approx. 800-1,000 square meters (around 18-20 tons). A 40ft HQ container accommodates approx. 1,800-2,200 square meters (up to 26-27 tons). We also support customized loading plans optimized for your local road transport weight limits.

Our standard production lead time is 10–15 business days for a 20ft container (approx. 800–1,000 sqm of decking or wall panels) and 15–20 days for a 40ft HQ container. For standard catalog models and stocked colors, our MOQ starts from 200–300 square meters. We also support mixed-container orders combining decking boards, wall siding, fence kits, and hidden fastener accessories.

Yes, KSL products are 100% eco-friendly, non-toxic, and splinter-free, ensuring total barefoot safety for children and pets. Our composite formulation is free of hazardous volatile organic compounds (VOCs), formaldehyde, and heavy metals (SGS RoHS certified lead-free), resisting pet claw scratches with superior surface hardness.

Engineered with advanced thermal stabilizers and hydrophobic polymers, KSL profiles endure temperature extremes from -40°C to +60°C. With water absorption under 0.3%, our composite profiles withstand over 100 severe freeze-thaw cycles without core delamination or structural deformation.