Bostik Flashing Tape

Bostik Pro Seal N Tight

Flashing Tape



Bostik Pro Seal N’ Tight flashing tape is comprised of a butyl adhesive on a polypropylene facestock. Used to provide a waterproof seal around the rough opening of a building prior to installation of windows, doors, or skylights. Bostik Pro Seal N’ Tight flashing tape provides an excellent bond to plywood, housewrap, OSB, stucco, anodized aluminum, and other common building materials.

Key Features and Benefits

  •  Bonds to a variety of surfaces
  • Excellent moisture resistance
  • Compatible with Bostik sealants
  • Meets AAMA 711-13 & ASTM E-96 requirements
  • Easy handling characteristics
  • Great tear resistance and nail sealability
  • Adhesive is not coated to the edge of the film making for easier release, handling, and the edge of the roll will not stick to unwanted areas

Typical Physical Properties

Appearance: White film with black tape

Tensile Strength (ASTM D412, method A, die C): 2,000 psi

Thickness: 18 mil


Bostik Pro Seal N’ Tight flashing tape is supplied on a polypropylene film with a release liner in a variety of widths and a length of 75 feet per roll. For more information please call your Bostik sales or technical representative.

Application Techniques

For best adhesion, apply Bostik Pro Seal N’ Tight flashing tape at or above 32°F