838 Coatings

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. Its 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. The 2-gallon pail format is commonly used for larger repair areas, seam work, and detail applications where brushing or pouring is preferred. 838 MS conforms to the...

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. The 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. This sealant is commonly used for sealing metal roof seams, fasteners, gutters, and roof penetrations. It conforms to the shape it is applied to, hangs vertically with...

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. Its 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. The 750 ml resealable pouch format is well suited for sealing gutters, penetrations, and detailed repair areas where controlled dispensing and minimal waste are...

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. Its 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. The 5-gallon pail format is ideal for larger repair areas, extended seam runs, and restoration work where brush or pour application is preferred. 838 MS conforms to the...