How does the addition of zinc borate to WPC improve resistance to fungal decay in planters?
The addition of zinc borate to Wood-Plastic Composite (WPC) significantly improves its resistance to fungal decay, making it an ideal material for planters. Zinc borate acts as a biocide, inhibiting the growth of fungi and mold that thrive in moist environments. When incorporated into WPC, it forms a protective barrier that prevents microbial degradation, extending the lifespan of planters exposed to outdoor conditions. This additive also enhances dimensional stability and reduces water absorption, further minimizing the risk of fungal infestation. As a result, WPC planters treated with zinc borate maintain their structural integrity and aesthetic appeal even in humid climates, offering a durable and low-maintenance solution for gardening and landscaping.