M-1® is a moisture curing, polyether adhesive/sealant designed for applications in damp, dry, or cold climates.
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M-1® is a high strength, multi-purpose, moisture curing, polyether structural adhesive/sealant designed for applications in damp, dry, or cold climates. M-1® forms a tough elastic, waterproof seal on most roofing materials, as well as masonry, wood, glass, aluminum and foam insulation. Application to flashing, coping, skylights and HVAC are typical. M-1® is an ideal emergency repair sealant because it can be applied underwater for a temporary repair of leaks. M-1® features 400 psi shear strength, 575% elongation, and a class A fire rating. 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 can not “out-gas”, or bubble on damp surfaces as urethane sealants often do. M-1® is capable of joint movement in excess of 35%in both compression and extension. M-1® can be used effectively in many difficult construction site conditions such as wet or dry climates and at temperatures as low as 32°F (0°C).
Remove all dirt, oil, loose paint, frost and other contamination from all working surfaces with alcohol DO NOT USE petroleum solvents such as mineral spirits or xylene. Maintain M-1® at room temperature before applying to ensure easy gunning and tooling. Test and evaluate to ensure adequate adhesion. Carefully gun the sealant with a smooth, continuous bead. If tooling is needed, do so within fifteen minutes of application.