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WP3101-INT Arc Inc. Internal Waterproofing Corner

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Arc Inc.

Product Details

Product Details

Arc Inc. Internal Waterproofing Corner

The Arc Inc. internal corner is a rugged, flexible, preformed corner tape for covering joints to prevent penetration of moisture and provide a sound foundation for tile or stone over-layments. It also acts as an anti-fracture protection between substrates and hard surface coverings.


  • Use to cover joints between ARC TrueDEK shower foundations and surrounding tile backer, and to cover joints between tile backer panels
  • Bonds well with TANK/10 waterproofing compound
  • Dimensions
  • Width: 4-3/4" overall; 1" mesh edges; 2-3/4" center
  • Length: 11" overall; 5-1/2" each leg
  • Thickness: approximately 1mm
  • Invert to embed over outside corners
  • Impermeable center polyester (blue) areas
  • Use where three surfaces interface at 90°
  • Fill gaps beneath tape that are 1/8" wide or more using latex caulk or thinset mortar (do not use silicone)
  • Remove all dirt, debris, and contaminants from surfaces prior to embedding tape. Surfaces must be completely dry before embedding tape
  • Tape is not designed as a wear surface; cover with tile, stone, or other appropriate material

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