What are the differences in thermal deformation between WPC and aluminum composite planters under direct sunlight?

When exposed to direct sunlight, WPC (Wood Plastic Composite) and aluminum composite planters exhibit distinct thermal deformation behaviors. WPC planters, made from a blend of wood fibers and plastic, tend to expand and contract more significantly due to temperature fluctuations. This material absorbs heat, leading to gradual warping or bending over time. In contrast, aluminum composite planters, with their metal core and protective coating, have higher thermal stability. They expand minimally and retain their shape better under prolonged sun exposure. While WPC may offer a more natural aesthetic, aluminum composites provide superior durability in high-temperature environments. Choosing between them depends on climate conditions and long-term maintenance preferences.