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TufTile, Inc.
                                                                                               Job No. 14629
               Gaynes Labs, Incorporated

                                                                                            October 15, 2014
               TufTile Inc.
               1200 Flex Court
               Lake Zurich, IL. 60047

               Attention:  Mr. Ted Meyers
               Regarding:  Taber Abrasion Testing of Cast Iron Tile

               Dear Mr. Meyers,

               Please find below the procedures and results of the test that was conducted on Cast Iron ADA
               Tactile Warning Tile submitted and identified by TufTile Inc.

               TEST PRROCEDURE:

               Testing was conducted in accordance with ASTM C501-84 (2009) Standard Test Method for
               Relative Resistance to Wear of Unglazed Ceramic Tile by the Taber Abraser.  Testing was begun
               by weighing the test specimen to the nearest 0.01 gram.  The sample was secured to the spindle
               of the Taber abrasion machine so that the smooth, non-nub side of the tile was subjected to the
               abrasion test.  The abrasion machine was equipped with H-22 coarse Calibrade wheels.  A 1 kg
               load was applied to each abrasive wheel.  The machine was activated and allowed to run for
               1000 cycles.  The test specimen was removed from the spindle and reweighed.  The abrasive
               wear index (I ) is calculated using the following equation:  I  = 88/(W -W ) where W  is the
               original weight of the specimen, and W  is the final weight of the specimen.
               TEST RESULTS:
               Abrasive Wear Index = 88

               Please contact me if you have any questions regarding this test program.

                                  Report Prepared By:
                                                               Andy Boersema

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