Sill Tape

TESCON EXTOSEAL® sill tape is a flexible flashing tape for use around framed joinery openings as part of flexible or rigid weather resistive barrier (WRB) systems. It provides optimum weather protection around penetration openings, under all conditions. TESCON EXTOSEAL® provides a wind tight and watertight adhesive seal to the substrate forming a weathertight sill to drain water safely to the outside.

  • Excellent UV resistance (180 days exposure)
  • Long-term durability
  • Self-sealing around nail and screw penetrations
  • Excellent adhesive strength
  • Weathertight & airtight component of your WRB