Eternabond DoubleSided Tape (1" x 50' / 15.2 m) delivers a next‑level, pressure‑activated seal that permanently bonds two surfaces—even if they’re dissimilar. Built around EternaBond’s advanced MicroSealant Technology, this tape forms a true, waterproof bond that stands up to weather, temperature shifts, and everyday movement. The DoubleStick design features a removable siliconized release liner on each side, so you can prepare one surface, apply, and then seal the second surface with confidence.

What makes DoubleStick different

• Dual-sided, self-sealing action: Pressure-activated MicroSealant bonds instantly to create a tight, durable seal between two surfaces, with a gasket-like performance that adapts to irregular shapes.
• Wide substrate compatibility: Bonds to EPDM, TPO, most PVC, CSPE/Hypalon, CPE, SBS, APP-modifieds, asphalt and coal tar BURs, tiles, shingles, coated or non-coated metals, aluminum, galvanized steel, gypsum board, wood, plastics (PE/PP), fiberglass, brick, concrete, masonry, OSB, shielding membranes, and more.
• Extreme-temperature resilience: Remains flexible to temperatures as low as -57°C, reducing the risk of thermal shock and leaks in cold seasons or rapid temperature changes.
• Versatile bonding for irregular surfaces: Works as a lap seal, under the foot of equipment curbs or skylights, or rolled into a bead for a gasket that fills gaps and holes.

Ideal uses and scenarios

• Roof repairs: seal flashing, gutters, skylights, copings, ductwork, and penetrations without invasive methods.
• Weatherproof seals: create a permanent bond around irregular seams where traditional tapes struggle to conform.
• Gaps and holes: roll into a bead or ball of MicroSealant to form a gasket that blocks wind-driven rain and leaks.
• Equipment installations: secure curbs, skylights, or vents with a dependable, watertight bond that moves with the roof.

Application and surface prep for best results

• Prepare the surface so it’s clean and dry. Remove moisture, dust, and contaminants for optimal adhesion.
• Decontaminate heavily oiled or dirty areas with Eternaprime (RVO699) or a non-residue cleaner such as acetone or lacquer thinner; ensure all residues are completely removed and dry before application.
• Position the tape, then remove one release liner and press firmly to bond the first surface; peel away the second liner and seal the second surface to complete the bond.

Why this matters for you

• Longevity you can trust: A single application creates a lasting waterproof seal that reduces maintenance, callbacks, and material waste from frequent repairs.
• Time‑saving and user-friendly: Dual-sided design means fewer steps and a cleaner installation, even on roofs with irregular shapes or difficult access.
• Cost-effective resilience: By replacing multiple sealants and patches, it offers a durable, single‑solution approach for roof and building envelope repairs.

Precisely what you get

Roll size: 1" wide by 50' long (1 in x 50 ft / 25.4 cm x 15.2 m).

Whether you’re a professional roofer, facility manager, or DIY homeowner tackling a weatherproofing project, Eternabond DoubleSided Tape with MicroSealant Technology delivers a dependable, flexible, and lasting seal where it matters most—on roofs, seams, and around penetrations that demand resilience.