Spans 2" gaps, reduced dirt pickup, eliminates yellowing, paint discoloration and forms an airtight, water resistant seal. 50% total joint movement and 800% elongation, has unsurpassed flexibility and durability. Exceeds ASTM C-920, Class 25, Fed Spec TTS-00230C and complies with AMMA 808.3 standards. Waterborne urethane = easy tooling & gunning, 60 minute tack free (no dirt collection), paint in 4 hours Water clean-up.