Our company has specialized in PVC foamed profiles for nearly two decades, which is the primary application area for our PVC additive products. We pay close attention to key performance metrics such as foaming density, cross-sectional hardness, whiteness, surface flatness, smoothness, and the presence or absence of pinholes or pitting. To address common issues like pinholes and poor nail-holding strength in foamed profiles, our R&D team has recommended adjusting the formulation by appropriately reducing the proportion of calcium carbonate powder. We have developed a higher-viscosity modifier, P-502, and recommend its use in conjunction with suitable lubricants, specifically PE wax (J-1200P) and G60. This combination effectively improves the material's properties, ensuring better quality and performance in the final product.