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
StoPowerwall®ExtraSeal is an Air and Moisture Barrier with a Direct-Applied stucco system.
Sto ExtaSeal is designed for use as an air barrier, moisture barrier, and stucco scratch coat on prepared concrete and CMU beneath StoPowerwall Stucco (ICC ESR 2323) or any other ASTM C 926 compliant stucco brown coat.