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How to Install Everlast® Natural Stone

For both Pebblestone and Granitestone, follow the same set of instructions below

What Tools will you need?

Movement Joint Profiles

  • Movement Joint Profiles to allow for movement of the concrete and prevent stresses that can damage the flooring.

Transition Strips

Blending Option 1 - Cement Mixer (easiest option)

Blending option 2 - Hand Mixing



  • Wear chemical goggles when blending the epoxy.
  • Wear nitrile gloves when handling the epoxy. 

Step 1: Substrate Preparation

Everlast® Natural Stone can be installed over concrete and also over hard floor tile so long as the tile is solidly adhered to the floor.


The first step is to prepare the surface and remove any existing coating or concrete laitance. The surface needs to be porous and able to absorb the
adhesive binder. You can do this simple test – pour a little solvent on it and see if it soaks in. If the solvent lays on the surface than you need to
scratch up the surface further. Use Xylene, Toluene or M.E.K. as the solvent for this test instead of water – you will also use this solvent to keep your tools clean.

If you are installing over a glazed tile, then you need to first remove much of the glaze. Anytime you are installing over tile or over concrete that is
not pourous (see above) than we highly recommend that you first prepare the surface with a diamabrush.

If attempting to remove asbestos, there are health and legal concerns whenever dealing with asbestos, which we are not qualified to advise on, so we recommend that you consult your local environmental health authorities.

The Home Depot Tool Rental Center- Concrete Floor Preparation

Diamabrush Hand Tools for Pros - The Home Depot

Video: Diamabrush Removal Tool Training

Video: Diamabrush Hand Tools

    Diamabrush tools are also available for sale at Amazon. Here are some links to get you started.

4.5" Hand Grinder Set from Amazon

    Diamabrush 4.5” Removal                 Tool

    Diamabrush 4.5” Dust             Shroud

7" Hand Grinder Set from Amazon

    Diamabrush 7” Removal                 Tool

     Diamabrush 7” Dust             Shroud

Diamabrush Floor Preparation Tools

Before buying replacement blades for Diamabrush the Concrete Prep Plus Tool recommend first making sure that either a new head or the larger set
of replacment isn't cheaper - as the prices fluctuate.

Check for any moisture problems with the concrete or tile. New concrete must cure for at least 28 days at 70°F (21°C), and have been free from water
for at least 7 days. Tile or Concrete hydrostatic, capillary or moisture pressure must be no greater than 3.0 lbs./ 1000 sf / 24 hours.

Calcium Chloride Moisture Content Test

Calcium chloride tests should be conducted to determine if the concrete is sufficiently dry for the installation
of  Everlast® Floor. The calcium chloride tests should be conducted in accordance with the latest edition of ASTM F 1869, Standard Test Method for Measuring Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride. When running a calcium chloride test, it is important to remove any grease, oil, curing agents, etc. so accurate readings can be obtained. Concrete hydrostatic, capillary or moisture pressure must be no greater than 3.0 lbs./1000 sf/24 hours.

Gram Scale
Use for weighing the calcium chloride test kits before and after the test.

Step 2: Primer

The next step is to prime the floor with a blend of 3 parts Everlast® Hi-Grip Primer part A and 2 parts Everlast® Hi-Grip Primer part B. This primer is applied with a paint roller. Prime the entire surface unless your floor has a moisture problem – then use our Vapor Vent method instead. Our Vapor Vent method is to prime only the edges, and a criss cross pattern in the floor leaving 3 foot by 3 foot open unprimed areas squared out with a 9” checkerboard primed border. This will allow for the moisture to escape through the Natural Stone.

Step 3: Coverage per Kit Area Markings

Mark out your first section on the floor so you know how much area each kit needs to cover. Make sure your gauge rake is set to the proper depth - which is usually 1/8” more than the desired thickness. You may need to mark out the next section before blending each new batch until you are confident that you are getting the right coverage.

  • - 32 square feet per kit at a depth of 3/8”
  • - 24 square feet per kit at a depth of 1/2” (we recommend a depth of 1/2” for pools, patios and walkways)
  • - 16 square feet per kit at a depth of 3/4” (we recommend a depth of 3/4” for driveways)

Step 4: (blending)

Blending Instructions:

Add 64 ounces (by volume) of Natural Stone Indoor Epoxy Part A into 24 ounces (by volume) of Natural Stone Indoor Epoxy Part B and blend thoroughly.

Pour the blend over 2 bags of pebbles.

Blend thoroughly. Note: It is important to blend thoroughly. If you do not blend the stones in thoroughly with the epoxy, there will be some "dry spost" in your mix and you will have some areas of missing stones to patch later after the floor starts getting some use.

Step 5: Installation

Pour out the pebbles and spread them with the gauge rake to get a uniform coverage. Then use a finish trowel to smooth out the pebbles to make an even surface. Try to have an even finish with no trowel marks or stray rocks sticking up. It is easy to do a nice job, but it does take extra time. If you try to hurry it will not look nice.

Step 6: Curing

The next step is to let the Natural Stone get hard. Indoor epoxy will be cured the next morning. Outdoor polyavastic will take an extra day to cure. Then scrape off any stray pebbles that are sticking up and sweep or blow off the floor to remove the extra pebbles.

Step 7: Topcoat

Topcoat Blending Instructions:

Blend 2 parts of Everlast® Natural Stone Stay-Clean Sealant with 1 part of Everlast® Natural Stone Stay-Clean Sealant.

Roll an even topcoat over the Natural Stone.

* Approximate coverage for 1 gallon of Everlast® Natural Stone Stay-Clean Sealant is 100 square feet.

Step 8: Slip Resistance Additive

When outdoors or anywhere where the floor will be wet, broadcast slip resistance additive into the topcoat. We recommend 1500 square feet of slip resistance additive per quart.