Monday-Friday | 8:00 am – 5:00 pm (EST)
Sto Americas Headquarters
3800 Camp Creek Parkway SW
Building 1400 • Suite 120
Atlanta, Georgia 30331 USA
Phone (800) 221-2397 – Fax (404) 346-3119
Sto ExtraSeal® is a portland cement-based air and moisture barrier component for use beneath direct applied stucco brown coats. It is applied by trowel or pump to vertical above grade concrete and concrete masonry (CMU) wall surfaces.