Sto Corp. has launched StoShield SA and Sto GoldSeal STPE, air and water-resistive barrier (AWRB) solutions that are part of the complete Sto system of envelope technology.
StoShield SA is a self-adhered AWRB available in two configurations:
- StoShield SA VP: A vapor-permeable barrier that prevents air leakage and water intrusion while allowing moisture and vapor to escape, reducing the risk of trapped condensation.
- StoShield SA NP: A non-permeable version that provides maximum protection by preventing both air and vapor movement, making it ideal for high-moisture or cold-climate applications.
With factory-controlled thickness, an aggressive primerless adhesive, and instant waterproofing, StoShield SA ensures consistent coverage, improved installation efficiency, and reliable long-term protection. The UV-cured acrylic adhesive bonds in cold temperatures and offers visual alignment through a printed grid pattern, streamlining on-site application.
Sto GoldSeal STPE is a premium, fluid-applied, vapor-permeable AWRB designed for superior performance in extreme conditions and jobsite flexibility. Formulated with solvent- and water-free moisture-cured chemistry, it offers:
- Excellent adhesion across substrates, including glass mat gypsum, wood-based sheathing, concrete, and CMUs.
- Fast, all-weather application: It skins in one hour, cures in under 12, and can be applied in temperatures as low as 20 degrees Fahrenheit.
- A safer jobsite experience: Includes low VOC, isocyanate-free, and tin-free, with no respirator required.