Open the rubber flooring and place it inside the installation room along with the tubs of adhesive. Leave them there for one week to allow the material to acclimate to the surrounding air temperature and humidity.
Fill a bucket with 1 gallon of water and 2 to 3 tablespoons of a degreasing cleaner. Scrub the subfloor well using a long-handled push broom to remove all traces of grease or grime from it.
Empty the bucket and fill it with clean water. Rinse the brush and remop the floor to removal all traces of cleaner. Wait until the subfloor dries completely before proceeding.
Place a long 2-inch by 4-inch board at one end of the floor and pull it across the entire surface to the other side. As you pull it, note any gaps under the board which indicate depressions in the floor. Circle these areas with chalk.
Open a tub of self-leveling concrete compound and apply one trowel full at a time to the center of each chalked area. The material will feather out along the edges to fill in the depressions. Wait 24 hours and sand the repair site with a floor sander and rough-grit sandpaper. Vacuum the sanding dust up with a shop vac.
Measure the length and the width of the room using a tape measure. Divide each measurement in half and locate the center mark of each wall. Snap a chalk line across the center length and width of both walls to create four equal quadrants.
Open the two part epoxy-based rubber floor adhesive. Pour the smaller bucket into the larger bucket and mix them up using a drill with a paddle attachment on it. Continue mixing until the solution is a single consistent color throughout.
Spread the epoxy adhesive over one quadrant using a notched trowel. Press the rubber floor tiles into place along the center line, filling one quadrant before moving on. Press each tile directly next to its neighbor. Install additional rubber tiles into each of the remaining quadrants until completing the floor.
Roll a 100-lb. floor roller over the entire floor to press it securely into the adhesive.