Premium XPS Polystyrene Board – High-Performance Waterproof Backer Board
Ultra-lightweight yet rigid XPS foam core ensures exceptional durability and thermal insulation. High molecular density structure resists alkali, moisture, and mold for long-term stability in harsh environments. Precision-engineered with an alkali-resistant surface coating, ideal for tile backing, exterior wall insulation, and below-grade waterproofing applications. Seamless installation with easy cutting and shaping. Perfect for contractors and DIY projects requiring a reliable, cost-effective substrate for wet areas like bathrooms, basements, and commercial facades. Bulk pricing available for large-scale construction needs. Global wholesale supplier guaranteed – unmatched quality at the lowest prices, shipped worldwide.