Dynatrol I-XL Hybrid Sealant is a state-of-the-art, hybrid STPU (silyl-terminated polyurethane) chemistry-based sealant designed for diverse and dynamic joint applications. This one-part, moisture-cure, gun grade product is engineered to provide exceptional adhesion across both porous and non-porous surfaces. It cures to a low modulus rubber capable of accommodating significant joint movement (±50%), and is formulated to remain stable under UV exposure without yellowing, cracking, or crazing.
Key Features and Benefits:
- Non-Staining and Non-Yellowing: Ensures aesthetic integrity in visible applications.
- Highly Flexible: Maintains elasticity and movement capability of ±50%.
- Fire Rated: Suitable for use in UL fire-rated joint systems, enhancing safety.
- Low VOC and Isocyanate-Free: Meets environmental safety standards across all 50 states.
- Excellent Adhesion: Bonds effectively to green concrete and other common construction materials.
- Paintable: Compatible with high-quality moisture-permeable coatings.
- Jet Fuel Resistance: Ideal for demanding environments including airport construction.
Applications:
- Dynatrol I-XL Hybrid is highly versatile for both interior and exterior applications, including window and door perimeters, expansion joints, and in settings requiring fire resistance or chemical durability.
Installation Tips:
- Surface Preparation: Surfaces should be clean, dry, and free of any contaminants to ensure optimal adhesion.
- Joint Design: Adheres to a 2:1 width-to-depth ratio for dynamic joint conditions to maintain sealant performance.
- Tooling: Applied sealant should be tooled to achieve a smooth finish and ensure full contact with joint surfaces.
Limitations:
- Not suitable for direct contact with asphaltic or bituminous substrates, water immersion applications, or under urethane coatings without full cure.
Packaging:
- Available in 10.1 oz. (300 mL) cartridges, facilitating easy application and storage.