Sto ExtraSeal

Sto ExtraSeal from Sto Corp. is a single-component air barrier and continuous insulation adhesive for use on vertical above-grade concrete, concrete masonry units and glass-mat gypsum sheathing wall surfaces. Its qualities let it function as an air barrier and water resistive barrier for direct-applied stucco on CMU. It can also be used as continuous insulation adhesive for EPS, XPS or PI rigid insulation boards on CMU and glass-mat gypsum sheathing. The product complies with continuous insulation requirements of the IBC, IRC, ASHRAE 90.1, and other codes and standards.