BT20XL Butyl™

BT20XL Butyl is a cold applied self-adhering membrane composed of a tough cross laminated high density polyethylene film coated on one side with a layer of our proprietary butyl adhesive.

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Features & Benefits

  • A 20 mil butyl self-adhering membrane
  • Seals joints in exterior sheathing
  • Self-adhered flashing to seal window and door nailing flanges
  • 120 day UV exposure rating
  • Safe for use on all wood, wood clad, aluminum, fiberglass and vinyl windows and doors, and PVC membranes
  • Safe for use on all window and door flanges/nailing fins
  • Recommended for high altitude, high temperature and/or highly conductive metal cladding/flashing (copper, Cor-Ten, zinc) applications
  • Compatible with most construction sealants and will adhere to most construction surfaces
  • IAPMO ER 362 certified
  • Complies with ASTM E2112 requirements
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Technical Resources

Literature

Literature

Technical Data

Technical Data

Safety Data Sheet

Safety Data Sheet