Eternabond - RoofSeal Plus, Black UV Stable Seam Repair Tape 60mm

EternaBond RoofSeal Plus Black is designed specifically for granulated roofs and other surfaces that require a deeper seal. It features MicroSealant® adhesive technology applied at a thicker profile (65 mils) bonded to a UV-stable backing to create a waterproof, moisture- and air-tight barrier. The tape remains flexible at very low temperatures and adheres to multiple roofing materials and substrates.

Key features:

• 65 mils total adhesive/coating thickness for deeper sealing performance
• UV-stable black backing for long-term exposure resistance
• One-step permanent repair tape—no additional sealant required
• Adheres to rough, granulated, textured or porous roofing substrates
• Maintains flexibility and integrity down to −70 °F for thermal cycling durability

• Designed for surfaces requiring deeper seal (granulated or textured)
• Total thickness: 65 mils (±2 mils)
• Adhesion: 20 lbs+/in width
• Low temperature flexibility: remains effective to −70 °F
• Application temperature: >150 °F to −25 °F (with optional primer for 40 °F to −20 °F installs)
• Service temperature range: −70 °F to >200 °F
• Elongation: >700% (±100)
• Shelf life: Up to 5 years
• Standard roll sizes: up to widths of 48″ (as noted for RoofSeal/Plus line)
• Case quantities (as listed):
  • 4″ × 25′ – 6/Case
  • 6″ × 25′ – 4/Case

• Clean the surface thoroughly to remove rust scale, dust, talc, oil, grease, and other contaminants.
• If ambient temperature is below 40 °F or the surface is porous, apply EternaBond EternaPrime® primer per manufacturer instructions.
• Cut the tape to required length and peel back the release liner gradually while aligning the tape on the repair zone.
• Press the tape firmly into place, smoothing out voids and ensuring full contact along edges.
• Use a steel or hand roller or apply firm hand pressure to activate the adhesive bond and ensure complete adhesion and seal integrity.

Q: Can RoofSeal Plus Black be applied on heavily granulated or rough surfaced roofs?
A: Yes. RoofSeal Plus is specifically formulated with a thicker MicroSealant coating (65 mils) to penetrate and seal textured or granulated roof surfaces.

Q: Is RoofSeal Plus Black suitable for low temperature installation?
A: Yes. The tape remains flexible down to −70 °F and can be applied at ambient temperatures as low as −25 °F, with primer support for 40 °F to −20 °F installs.

Q: What is the storage condition and shelf life for RoofSeal Plus Black tape?
A: Store in its original packaging at temperatures around 40 °F to 100 °F. Under proper storage, the shelf life is up to five years.

Q: Are silicone-based sealants or lubricants compatible with this tape?
A: No. The manufacturer advises against the use of silicone-based products near the tape application area, as they may interfere with adhesion.