Preformed Butyl Tape

TREMPRO® 691 is a 100% solid, cross-linked butyl, preformed sealant.

Basic Uses
  • TREMPRO 691 is used for lap sealing between panels.
  • TREMPRO 691 adheres tenaciously to a wide variety of substrates, including steel, aluminum and porcelain.
  • It effectively seals dissimilar metals while preventing their contact that could cause galvanic corrosion.
  • Typical uses include truck trailers and cabs, bus bodies, recreational vehicles and modular homes.
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Product Details, Safety, and Installation
  • What is the shelf life of your TREMPRO sealants?

    Most of the sealants have a 12-month shelf life based on the manufacturing date and batch numbers from the tubes or cases.

  • Within what temperature range can the TREMPRO sealants be applied?

    Tremco recommends that our sealants be applied at substrate temperatures of 40°F (5°C) and rising to 120°F (49°C).