Eternabond - DoubleStick Leak Repair Tape - 60 Mil Adhesive Thickness

EternaBond DoubleStick tape features a double-sided MicroSealant adhesive protected by release liners on both sides. It forms a permanent waterproof bond between two surfaces, even dissimilar materials such as metal and membrane. Designed for extreme environments, it remains flexible to −70 °F and eliminates the need for liquid adhesives or curing.

Key features:

• Double-sided MicroSealant adhesive bonds two surfaces instantly
• Compatible with dissimilar materials such as metal, membrane, and concrete
• Flexible down to −70 °F (−57 °C) and resists thermal cycling and movement
• Ideal for lap sealing, curb bases, skylight flanges, and joint transitions
• No curing time required; forms immediate waterproof adhesion

• Composition: Double-sided MicroSealant adhesive between siliconized liners
• Adhesive thickness: 60 mil standard thickness
• Total thickness: 60 mil
• Adhesion: 19 lbs per inch width
• Low temperature flexibility: −70 °F (−57 °C)
• Application temperature range: −25 °F to over +150 °F
• Service temperature range: −70 °F to over +200 °F
• Water vapor transmission (ASTM E96B): 0.005 g per 100 in² per 24 hr @ 100 °F
• Permanence: 0.001 perms max
• Elongation: > 500 %
• Dielectric strength: > 12 kV
• Insulation resistance: 10⁶ megohms
• Roll widths: 1″, 2″, 3″, 4″ × 50′ standard; up to 48″ by special order
• Per case: 1″ × 50′ – 24/Case; 2″ × 50′ – 12/Case; 3″ × 50′ – 8/Case; 4″ × 50′ – 6/Case
• Shelf life: Up to 5 years
• Color: Gray adhesive body
• Typical uses: sealing joints, transitions, curbs, wall flashings, and roof penetrations

• Clean and dry both surfaces, removing dust, oil, and debris.
• If surfaces are porous or below 40 °F, apply EternaPrime primer before installation.
• Remove one release liner and apply the tape to the first surface, pressing firmly.
• Remove the second liner and set the second surface into place, smoothing to remove air pockets.
• Apply uniform pressure or use a steel roller to ensure full contact and seal integrity.

Q: What is the adhesive technology used in DoubleStick?
A: DoubleStick uses MicroSealant technology made of 100% solids including synthetic resins, thermoplastics, and non-curing rubber with a built-in primer layer.

Q: What substrates can DoubleStick be used on?
A: It adheres to aluminum, galvanized steel, wood, rubber, concrete, masonry, and many thermoplastics, creating a long-lasting waterproof bond.

Q: How should DoubleStick be stored for best performance?
A: Keep the tape in its original packaging at 40 °F to 100 °F (4 °C to 38 °C). Under these conditions, it has a shelf life of up to five years.

Q: Are there any materials incompatible with DoubleStick?
A: Silicone-based sealants or lubricants should not be used on or near the installation area, as they can interfere with adhesion.