1003802/WINTEQ Features: -Window flange sealant.-For back caulking vinyl or aluminum window nailing flanges, sealing between nailing flanges and weather resistant barrier and exterior sheathing.-Permanently flexible.-Weather resistant.-Paintable.-Qualifies for LEED points.-Meets stringent state and federal VOC regulations.-Will not harden, crack, separate or yellow over time.-Can be installed in any weather condition.-Adheres to wet surfaces.