PFI / PFO Corners


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NAC Pre-Formed Inside (PFI) & Pre-Formed Outside (PFO) corners are a lightweight, breathable fabric providing an extra layer of waterproof protection in corner areas.

  • Allows for substrate movement in walls and floors while assuring waterproof integrity
  • Breathable fabric material allows for SubSeal® liquid to soak into the fibers, assuring a strong & waterproof corner
  • Low profile, durable construction for easy and fast installation
  • Suitable for interior/exterior use and thin or thick-bed applications.
  • Tile can be installed same day if no flood testing is required
  • Can be cut to size with razor blade if necessary
Additional Resources

Install Sheet

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