NAC ECB 75 Crack Isolation Membrane (225 SF/Roll)

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ECB 75 provides protection for up to 1/4" of lateral substrate movement. Available in 3' x 75' rolls (225 sf).


ECB 75 is a 40 mil thick (approx. 1/16") sheet applied membrane designed for interior use under floor surfaces that require protection from structural movement. ECB 75 provides protection for up to 1/4" of structural movement and is an ideal solution for residential installations that require crack protection.

  • For residential interior use
  • Meets ANSI A118.12 and ANSI A118.10
  • Protects against reflective cracking and delamination
  • IIC: 65 per ASTM E492-04
  • STC: 67 per ASTM E90-04
  • Safely covers asbestos flooring and provides an effective barrier against radon and mold
  • Resists Moisture Vapor (MVT) 10#/1000SF/24HRS when used with NAC TAC or NS97 Primer or 7#/1000SF/24HRS when used with NAC TAC II Primer
  • Eliminates need to cut tile to meet control/cold joints
  • No need to remove old floors or recess new ones
  • Can be used for thin-bed and medium-bed applications
  • Self-bonding and self-healing formula
  • Tile can be installed the same day as membrane
  • Works with radiant-heated floors and tile warming systems
  • Roll Size: 3' x 75' (225 sf)

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