Polyguard 650 WB is a high-performance, water-based liquid adhesive formulated for both residential and commercial construction. This rubber-based, low-tack adhesive serves as a critical component of Polyguard Systems, specifically designed to prime and condition dry substrates—including concrete block, brick, plywood, OSB, and exterior gypsum sheathing—to be dust-free and ready for the application of self-adhered membranes.

Key Performance & Application

• Versatile Compatibility: Engineered for use on vertical and horizontal surfaces, including cast-in-place concrete, precast concrete, CMU, and masonry. It is also compatible with rigid insulation boards (Polyisocyanurate, XPS, EPS/ICF) and existing Polyguard rubberized asphalt membranes.
• Environmental Efficiency: Features a low VOC content of 5 g/L and appears pink upon application for easy visual coverage verification.
• Application Standards: Designed for use in ambient and surface temperatures of 40°F (5°C) and rising.

Important Note: To ensure product integrity, Polyguard 650 WB must not be allowed to freeze during transit, storage, or use.

To learn more about Below Grade Sheet Applied Waterproofing Bundle, click here.