STI Silicone Firestop Sealant, sil305

This is a premium-grade elastomeric firestopping product primarily designed for high-performance sealing in structural joints and through-penetrations. Key Product Features • Movement Capability: Provides up to ±50% movement capability in low-modulus joints, offering extreme flexibility. • Auto-Bonding Properties: Freshly applied sealant easily adheres directly to previously cured coats. • Environmental Resistance: Formulated to offer exceptional ozone, UV, and water resistance, ensuring lasting durability in exposed installations. • Compliance Standards: Extensively listed and tested under UL systems to establish a robust water and fire barrier (Class 1 W Rating).