StoShield SA and Sto GoldSeal STPE are air and water-resistive barrier (AWRB) solutions that are part of the complete Sto system of envelope technology.
StoShield SA is a high-performance, 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.
StoShield SA features factory-controlled thickness, an aggressive primer-less adhesive and instant waterproofing. 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 fluid-applied, vapor-permeable AWRB designed for performance in extreme conditions and jobsite flexibility. Formulated with solvent- and water-free moisture-cured chemistry, it offers:
- Adhesion across substrates, including glass mat gypsum, wood-based sheathing, concrete, and CMUs.
- Fast, all-weather application – skins in one hour, cures in under twelve, and can be applied in temperatures as low as 20°F.
- A safer jobsite experience – low VOC, isocyanate-free, and tin-free with no respirator required.
Compatible with StoGuard detailing components and engineered for use with StoTherm ci with Sto Fireblocking, StoPowerwall ci, StoQuick Silver, and StoVentec Rainscreen systems, Sto GoldSeal STPE simplifies sequences and enhances performance within Sto’s integrated envelope solutions.