M-1 by Chem Link is a moisture cure, multi-purpose structural adhesive/sealant designed for bonding and sealing a wide range of construction materials. M-1 forms a tough, elastic & waterproof seal to most roofing materials, masonry, wood, glass, aluminum and foam. M-1 bonds well to most building surfaces including metal flashing, copings, skylights, and HVAC surfaces and makes for an excellent construction adhesive sealant for multiple applications.