There are numerous varieties of gypsum board available in the market today. Among these, four types are particularly popular due to their distinct properties and applications: Plain Gypsum Board Characterized by its ivory-white core and gray paper, this type is both economical and widely used. It’s ideal for spaces that don’t require any special features, provided the relative humidity remains below 65%. Many opt for the 9.5mm thickness for ceilings or partitions because of its affordability. However, it's worth noting that thinner boards like this can be prone to warping under humid conditions. For better durability, consider using 12mm or thicker sheets, which also help reduce the risk of joints cracking over time. Water-Resistant Gypsum Board This variety has a waterproofed core and face paper. According to national standards, the surface and core must meet specific waterproofing criteria (surface water absorption should not exceed 160g, and the water absorption percentage should be under 10%). This makes it perfect for environments with higher humidity levels, such as bathrooms and kitchens, where the relative humidity may reach up to 95%. Fire-Retardant Gypsum Board These boards contain a fire-retardant material along with a significant amount of fiberglass. If you cut one open, you’ll notice plenty of glass fibers visible on the cross-section. High-quality fire-retardant boards typically use non-alkali glass fibers known for their excellent fire-resistance. Cheaper alternatives might incorporate medium or high-alkaline glass fibers instead. Mold-Resistant Gypsum Board Designed to resist moisture effectively, this type boasts a surface water absorption rate of less than 160g/m². Mold-resistant gypsum boards are particularly useful for ceilings, partition walls, and veneer walls in areas exposed to fluctuating environmental conditions. They provide an additional layer of protection against mold growth and structural damage caused by prolonged exposure to dampness. Laboratory Galvanized Clean Door Laboratory Galvanized Clean Door,Laboratory Galvanized Single Clean Door,Laboratory Galvanized Double Clean Door,Laboratory Galvanized Folding Clean Door Shenzhen Yue Ma intelligent Technol , https://www.ymcleanroomdoor.com