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Concrete expansion joint filler

Flex 100 Expansion Joint Material

Concrete Expansion Joint Filler

Expansion Joint Filler

Flex is flexible, lightweight, closed cell foam expansion joint filler for interior and exterior applications including concrete placement and repair needs. Ideal use for expansion, contraction and/or isolation joints.


  • Closed cell foam that is:
  • Chemically resistant
  • Ultraviolet stable
  • Non-absorbent
  • Flexible and lightweight
  • Resilient
  • Compressible
  • Non-staining
  • Easy to remove pre-scored ‘tear-away’ strip provides a uniform sealing cavity in the joint.
  • Ability to be formed around curved objects.
  • Cost saving installation and application eliminating need for sawing and routing.
  • Multiple applications including expansion joint filler in concrete and acts as a sealant bond breaker.
  • Available in:
  • Standard 1/2” thickness.
  • Standard widths of 3”, 4”, 5”, 6” and 8”.
  • Custom thicknesses and widths are available upon request.
  • 500 foot rolls.
  • white or Black