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EternaBond 4" x 50' Tan RoofSeal Sealant Tape

EternaBond RoofSeal
EternaBond RST-4-50 4" x 50' Tan RoofSeal Sealant Tape

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Price: $70.30
Note: Please call or email [email protected] for alternatives
MFG P/N: EB-RT040-50R
MFG: EternaBond
Weight (lbs): 3

Quantity in Stock :(Out of Stock)

Out of Stock
Product Code: RST-4-50


The EternaBond RST-4-50 RoofSeal tape is tan with a 50 foot length and a 4 inch width. Total thickness is 35 mil. RoofSeal's UV protected backing makes it ideal for use in areas with a lot of sun. The elongation factor is very high, allowing it to expand or contract with the conditions as they change.

  • Easy installation, only a small amount of surface prep needed
  • Liquid tight seal
  • UV stable backing
  • High elongation factor
  • Can stick to itself & fit around objects
  • Adhesive has silicone lining to prevent tape from sticking before application
  • Recommended for roof & leak repair, land-fill or pond linings, skylights, gutters, and seam repair
  • Features MicroSealant Technology - 100% solids formulation consisting of synthetic resins, thermoplastics and noncuring rubber with a built-in primer
  • Works on EPDM, TPO, most PVC, CSPE/Hypalon, CPE, SBS, APP modifieds, aluminum, galvanized steel, wood, most plastics, fiberglass, brick, concrete, and other kinds of roofing material


  • Roll Size: 4" x 50'
  • Color: Tan
  • Adhesion: 20 lbs+ /in width
  • Application Temperature: -20 F to 150 F ambient
  • Elongation: > 700% +/- 100
  • Low Temperature Flexibility: 1/2" radius at -30 F
  • Flexibility Temperature Range: -70 F to >200 F
  • Permanence: 0.001 perms max.
  • Pliability: No cracks in membrane
  • Shelf Life: Up to 5 years
  • Tensile Break PSI: 4500 PSI +/- 500 PSI
  • Total Thickness: 35 mil +/- 2 mil
  • Water Vapor Test: 0.005 grms/100" sq./24hrs/100 F


The area should be dry and free from debris or other substances before RoofSeal can be applied. Remove the lining as the tape is being applied to prevent mistakes and keep the tape from coming into contact with other surfaces or objects. Pressure should be applied to set up the bonding process and remove any air bubbles. This can be done with your hand, although a steel roller provides the best results. If the ambient temperature is 40 F to -20 F, the surface should be treated with EternaPrime surface conditioner before applying.

EternaBond RoofSeal Downloads

EternaBond RST-4-50 Tan Roof Leak Repair Tape