3.1 Find the center of the room with the measure. Draw a vertical halving cross at the center.
3.2 Start with any 1/4 area of the room. Spread the adhesive evenly with a flat "V" notched trowel while being careful to leave no puddles of adhesive. If the substrate has been shot blasted or a rough textured underlayment has been applied, additional adhesive may have to be purchased to assure proper adhesive coverage. Spread coverage is approximately 150 square feet.
3.3 On porous substrates, allow the adhesive to "flash off" for approximately 15 minutes. On non—porous substrates, allow the adhesive to "tack up" for approximately 30 minutes. Caution: "tack up" time, open time,and curing characteristics will vary upon the type of substrate, temperature of the substrate, ambient temperature, humidity, and proper conditioning of the adhesive. Observe the adhesive to assure it has not surpassed its open time and started to cure. The best installation time is: Allow the adhesive to dry to the touch, so that there is little or no transfer of adhesive to the finger.
3.4 Start laying the tile where the perpendicular lines cross (center of the room), firmly press the first tile into place. Make sure the edges are flush with chalk line. Make sure it's positioned correctly and then press down firmly.
3.5 Fitting Partial Tiles
3.5.1 To fit partial tiles, lay the tile to be cut exactly over the last full tile; place another full tile against the wall and mark the cutting line where the tiles overlap.
3.5.2 Cut tile on line. Before laying, check that the cut tile fits. Do not force it into place.
3.5.3 Install the tile, and press it firmly into the position