OSI Sealants & Adhesives – Superior Strength for Any Project

Engineered for professional-grade durability, OSI offers high-performance sealants and adhesives for roofing, siding, and construction applications.

Why Choose OSI?

OSI is the go-to choice for contractors and builders, delivering exceptional bonding strength, flexibility, and weather resistance for long-lasting results.

✔ Weatherproof & Durable – Formulated to withstand extreme temperatures and harsh conditions.
✔ Superior Adhesion – Bonds to a variety of surfaces, ensuring a strong, lasting hold.
✔ Flexible & Crack-Resistant – Expands and contracts with building materials to prevent failure.
✔ Professional-Grade Formulas – Trusted by contractors for roofing, siding, and window applications.

OSI Product Line

🔹 QUAD® Max – High-performance siding and window sealant offering unmatched adhesion and flexibility.
🔹 QUAD® Foam – Expanding foam sealant for energy-efficient insulation and weatherproofing.
🔹 FUSION™ Construction Adhesive – Strong, all-weather adhesive for bonding multiple materials.
🔹 TeQ Mount – Versatile adhesive for heavy-duty applications, including stone and masonry.

Why Contractors & Builders Trust OSI

🏡 Proven Durability – Built to last in the toughest environments.
🌦️ Weather-Ready Performance – Designed to resist water, UV exposure, and temperature changes.
🛠 Easy Application – User-friendly formulas for quick, efficient installation.

Get the Right OSI Product for Your Next Project

Upgrade your sealing and bonding solutions with OSI's industry-leading adhesives and sealants.

📞 [Get a Quote Today →] (314) 298-9090