For heavy-duty projects, Sto ExtraSeal is an air barrier and continuous insulation adhesive in one, for use on vertical above-grade concrete, concrete masonry units (CMU), and glass mat gypsum sheathing. The single-component material offers freeze/thaw resistance, fast drying times, and same-day application for the air barrier and scratch coat or adhesive coat. ExtraSeal can qualify for LEED points. Sto | 800.221.2397 |