XtraFlash™ Membrane - Butyl Based Waterproof Flashing

An aggressive self-adhesive & self-sealing waterproof flashing membrane that adheres to plywood, OSB, masonry, aluminum, vinyl, steel, drywall, and housewrap. The membrane is based on our proven water and moisture vapor barrier technology. It's perfect for use around Windows & Doors, Joints & Vents, Pot Shelves & Recessed Windows and virtually any opening that requires a high-performance waterproof barrier.


    Perimeter sealing of:
  • Windows & Doors
  • Joints & Vents
  • Pot Shelves & Recessed Windows
  • Virtually any openings


  • Mold & Mildew Resistant
  • Wind & Tear Resistant
  • UV Resistant Up to 365 days
  • Fast & Flexible Installation
  • Resists Cracking
  • Will not De-laminate or Shrink
  • Highest Adhesion in its class
  • Self Sealing around Fasteners and/or nails


ASTM C-920 Type S & TTS-0230C, Grade NT, Class 25. AAMA 808.3-92 Exterior Perimeter Sealing.

Technical Specs

Material Top: Polyester
Product thickness 0.64 mm (25 mil), 1.02 mm (40 mil)
Adhesive Butyl
Color White w/ black back
Service Temps -30 deg. F to 230 deg. F
Application Range 35 deg. F to 130 deg. F
Recommended exposure limit 60 days subject to climate
Roll width(s) 100 mm (4 in.), 150 mm (6 in.), 225 mm (9 in.), 305 mm (12 in.), 450 mm (18 in.), 915 mm (36 in.)
Roll length(s) 22.9 m (75 ft)



This product is available in the following colors:

  • White with black back


The XtraFlash Membrane is available for the following industries


This product is available in the following configurations:

  • 4” - 9 Rolls Per Case
  • 6” - 6 Rolls Per Case
  • 9” - 4 Rolls Per Case
  • 12" - 3 Rolls Per Case
  • 18" - 2 Rolls Per Case
  • 36" - 1 Roll Per Case

Limited Lifetime Warranty

This product is guaranteed to give satisfactory performance if applied in accordance with the label directions. Liability to Premier Industrial Supply, Inc. (Premier) is limited to a full refund of the purchase price or product replacement if product is proven defective. Premier shall not be liable for loss or damage, whether direct, consequential or incidental. There are no other warranties expressed or implied including the implied warranty of merchantability or fitness for a particular purpose.