M-1 is a moisture curing, polyether adhesive/sealant designed for application in damp, dry, or cold climates. M-1 is solvent free and contains no isocyanates. M-1 will not shrink upon curing, will not discolor when exposed to UV light, and cannot bubble on damp surfaces as urethane sealants often do. M-1 is capable of joint movement in excess of 25% and can be used effectively in wet or dry climates and at low temperatures (30 degrees F).