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Product Description
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XpanX™ Concrete Joint Filler is self-adhering closed cell cross linked expansion gasket seal is made up of durable polyethylene foam that is moisture resistant and designed to maintain its form without collapsing under pressure. XpanX is the only self-adhering expansion joint spacer that is designed for sealing and gasketing which allow for expansion and contraction of concrete.

This product is a extremely cost effective way to help prevent radon gas escaping through the gaps that are created when the concrete cures and shrinks around the wall line in basements. This peel and stick product can use around the perimeter of the inside of the basement to create a pour line or use it around column post to help prevent rusting.

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Basic Uses
Anywhere a concrete expansion joints is needed.

Allow For Expansion Use XpanX

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Concrete is a vary porous material that expands and contracts with moisture and temperature changes. Cracks in hardened concrete can occur when moisture, temperature and movement are not accounted for. The use of XpanX at joints provide predetermined locations for these joints to reduce or eliminate random surface cracking when designed properly.
XpanX helps control moisture from entering the joint from above and aid in helping dirt enter the joint. This product is uses high performance cross-linked with high rebounding characteristics and excellent compression recovery.

Reduce Your Concrete Repairs

  • For Residential or Commercial Use
  • Flexible Installation with Peel and Stick
  • Self-adhering, Peel and Stick
  • Air and Moisture Barrier
  • Helps Stop Energy Loss
  • Separates and Provides a Thermal Break
  • Stays Elastic, Does Not Oxidize or Dry Out
  • Conforms to Surfaces Irregularities
  • Can be Used to Isolate Slabs
  • No VOCs and Environmentally Friendly
  • Micro-Grab Adhesive Technology
  • 5 year Shelf Life
  • Limited Lifetime Warranty
  • Made in USA
Available Sizes


3.5" x 25'

5.5” x 25'










Customizable Sizes Available

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