GoBoard® Sealant is a silyl-modified polyether hybrid sealant and adhesive that is moisture curing, permanently elastic and provides superior adhesion to GoBoard and other common building materials. Use GoBoard Sealant to waterproof GoBoard joints and fastener penetrations and adhere GoBoard to itself and other building materials. Because it contains no solvents or isocyanates, GoBoard sealant is environmentally friendly, non-toxic and exhibits minimal odor.