What are the differences in thermal expansion between WPC and ceramic-coated metal planters?

When choosing outdoor planters, understanding thermal expansion differences between materials is crucial. Wood-Plastic Composite (WPC) planters and ceramic-coated metal planters exhibit distinct behaviors under temperature changes.

WPC planters, made from a blend of wood fibers and plastic, have moderate thermal expansion. They expand and contract uniformly, reducing the risk of cracking. However, prolonged exposure to extreme heat may cause slight warping.

Ceramic-coated metal planters, on the other hand, feature a metal core with a ceramic layer. Metal expands significantly under heat, but the ceramic coating’s rigidity can lead to stress cracks if the expansion isn’t accommodated. Proper design with expansion joints is essential.

In summary, WPC offers more flexibility, while ceramic-coated metal requires careful engineering to handle thermal stress. Choose based on your climate and aesthetic preferences.