TOWER TECH²™ is 1 component high performance, gun-grade, Urethane Modified Acrylic Sealant with exceptional strength and durability. Superior adhesion to most substrates with 800% elongation. It's internally plasticized, has reduced dirt pickup, won't yellow, and prevents paint shiners. Forms a permanently flexible, airtight, water-resistant seal in gaps up to 2" wide.  Tower Tech²™ offers 50% total joint movement, is UV and mildew resistant, and is VOC compliant in all 50 states.

Performance Features: 

• Exceeds ASTM C-920, Grade NS, Class 25. Use M, G, A, O & NT
• Exceeds ASTM C-834, Type OP, Grade -18°C
• Meets ASTM E84 Class A rating according to Flame Spread Index and Smoke Developed Index values
• Exceeds Fed. Spec TTS-00230C, Type II, Class A
• Up to 2” in properly designed joints
• 800% Elongation
• Superior Adhesion
• Internally Plasticized
• Exceptional Adhesion and Durability
• Cured UV & Mildew Resistant Bead
• Interior / Exterior
• Vacuum Filled Tubes
• Lifetime Warranty