Dynatrol I-XL Hybrid features an advanced hybrid STPU (silyl-terminated polyurethane) chemistry that ensures exceptional performance and versatility. Its low odor and isocyanate-free formula make it a safe and user-friendly option for various applications. This sealant is designed to be non-staining and non-yellowing, preserving the appearance of surfaces without discoloration over time. With a moisture-curing mechanism, it efficiently reacts with atmospheric moisture to create a durable and lasting seal. Additionally, its gun-grade application allows for precision and ease during use, making it a reliable choice for both professionals and DIY projects.