What are the challenges of achieving smooth finishes on WPC outdoor sculptures?
Achieving smooth finishes on WPC (Wood-Plastic Composite) outdoor sculptures presents several unique challenges. WPC, a blend of wood fibers and plastic, is durable and weather-resistant but can be difficult to sand and polish due to its fibrous texture. The material's uneven surface often requires extensive sanding, which can weaken the structure. Additionally, WPC's porosity makes it prone to absorbing moisture, leading to swelling or warping that disrupts smoothness. Temperature fluctuations further complicate finishing, as WPC expands and contracts, causing cracks or roughness. Specialized coatings and sealants are often needed, but finding compatible products that adhere well and last outdoors is another hurdle. These factors make achieving a flawless finish on WPC sculptures a demanding task.
