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Easymat® Tile & Stone Underlayment

Easymat® Tile & Stone Underlayment

A versatile mat underlayment for setting tile and stone over any acceptable subfloor. EasyMat® is so fast and easy to install because it is up to 25 times lighter than 1/4″ (6 mm) backerboard, cuts easily with a utility knife, doesn’t require any nails or screws, and comes in a peel & stick version. The mat was specially designed so that the mortar locks in, creating a bonded crack-prevention system for subfloor movement up to 1/4″ (6 mm). This bonded system will withstand repeated stress and still maintain its tenacious bond. It is a superior alternative to cork underlayments because it will not rot, shrink, or absorb water. EasyMat® has SoundGard® Technology and therefore offers high and credible impact sound reduction. Use EasyMat® with other Custom® materials to qualify for a lifetime warranty.

Suitable Tile Types

EasyMat® can be used with the following tile types:

  • Ceramic tile, all types including impervious porcelain
  • Natural stone
  • Precast terrazzo tile

Suitable Substrates

  • Concrete, cement mortar, masonry
  • Cement Backerboard
  • Exterior Plywood and OSB (interior, dry areas only)
  • Exterior Decks – Contact Technical Services
  • Post-Tension Concrete – Contact Technical Services
  • Lightweight Concrete (min. 2000 psi compressive strength)
  • Gypsum-Based cement topping (min. 2000 psi compressive strength)
  • Existing ceramic tile and resilient flooring

Composition & Materials

Polypropylene foam spheres bonded together with the use of Polyurethane Adhesive in sheet format.


  • Set tile and stone over any acceptable subfloor
  • Up to four times faster to install than 1/4″ (6 mm) backerboard
  • Optional peel & stick version
  • Up to 25 times lighter than 1/4″ (6 mm) backerboard
  • Cuts easily with a utility knife
  • Mortar locks in to form a bonded-crack prevention system
  • No mechanical fasteners or tape needed
  • High and reliable-impact sound reduction


  • Do not bond directly to hardwood, Luan plywood, particle board, parquet, cushion or sponge-back vinyl flooring, metal, fiberglass or plastic.
  • Do not use as a wear surface.
  • When setting glass tile, contact Custom’s Technical Services for recommendations.
  • When setting dimensional stone larger than 12″ x 12″ (30 x 30 cm), contact Custom’s Technical Services for recommendations regarding subfloor deflection requirements.
  • Not for controlling vertical or differential movement cracks.

Tile Underlayment

Stone Underlayment