What are the differences in screw pull-out strength between WPC and aluminum composite planters?

When choosing between WPC (Wood-Plastic Composite) and aluminum composite planters, understanding their screw pull-out strength is crucial for durability and long-term use. WPC planters, made from a blend of wood fibers and plastic, generally offer moderate screw retention due to their fibrous structure. However, they may weaken over time when exposed to moisture. Aluminum composite planters, on the other hand, provide superior screw pull-out strength thanks to their rigid metal core and layered design, ensuring better stability for heavy or frequently moved planters. Factors like material thickness, screw type, and environmental conditions also influence performance. For high-stress applications, aluminum composite is often the preferred choice, while WPC suits lighter, decorative setups.