Waterproof Sealant and Adhesive for GoBoard GoBoard® Pro Sealant is a one-component, moisture-curing hybrid sealant and adhesive designed to waterproof GoBoard joints and fastener penetrations. Its permanently elastic, 100% solids formula also bonds GoBoard to itself and other compatible building materials without solvents or isocyanates. Flexible Joint Sealant with Multi-Surface Adhesion The sealant bonds to metal, compatible plastics, concrete, wood, foam, and ceramic in addition to GoBoard components. Its no-sag consistency works on vertical and horizontal surfaces, while the cured sealant accommodates up to 25% joint movement. Interior and Exterior Sealant Performance GoBoard Pro Sealant is paintable, non-yellowing, non-corrosive, and VOC compliant for interior and exterior applications. It provides long-term weather resistance, meets ASTM C920 Type S, Grade NS, Class 25 or better, and skins quickly to support same-day tile installation.
