Basic Use
Eternabond WebSeal Tape is used to seal roof joints (seams) and tears, flashings,
copings, skylights, gutters, etc. Perfect for repairing and restoring roofs on mobile
homes and RVs. Extremely flexible, with no memory, so WebSeal conforms to virtually
any shape without springing back. WebSeal also seals to itself so it can be cut and
folded around an object, as if wrapping a present.
Composition
Eternabond WebSeal utilizes EternaBond’s advanced MicroSealant™ Technology, a
100% solids formulation of synthetic resins, thermoplastics and non-curing rubber
(non butyl) with a built in primer, bonded to a woven polyester backing for maximum
conformability. Designed not to harden under even the most rigorous conditions.
Sag temp > 200ºF. Adhesive is protected (while in a roll) by a tough, easily removed
siliconized polymer release liner, which prevents contamination prior to its use.
All materials are prefabricated to provide uniform thickness.
Technical Data
Standard roll size: 2", 4", 6", 8", 12", 24", 36" X 50’
Standard case quantity: 100 sq. ft. per case
Available widths: Up to 48"
Total thickness: 30 mils (1mm)
Adhesion: 19lbs/in width
Low temp flexibility: Excellent
Temperature range: -70°F - >200°F
Pliability: No cracks in membrane
Water vapor test (ASTME 96B): .005 grms/100" sq./24hrs/100°F
Permanence: .001 perms maximum
Elongation: >500%
Application temp: >150°F to -20°F (with EternaPrime)
Shelf life: Up to 5 years
Surface Preparation
Surface must be clean and dry; free of loose rust and scale, dust, talc, and dirt. Oil,
grease, and other contaminants should be removed with a suitable solvent/cleaner.
Use of EternaPrime reduces clean up. For older plastic roofs, score surface with sand
cloth and wipe away dust.
Application
Install Eternabond WebSeal over the repair area, removing the siliconized plastic
release liner gradually to prevent contamination of the adhesive prior to application.
Rub or roll with pressure with hand or steel roller to activate bonding process. This
material may be applied to clean dry surfaces from 150ºF+ to -20ºF. Treat surface
with EternaPrime for installations from 40°F to -20°F. A topcoat of roof coating is
necessary for UV protection.