Removing Garage Oil Stains with Stain Solver
"I have garage floor that hasn't been cleaned in 20 years. Plan on using a pressure washer to clean. Wondered if Stain Solver to pre-treat would be advisable, to especially treat oil stains from the vehicles, etc. If so, please advise how to proceed before pressure washing ... thanks,"
Rich Chrencik of Marysville, OH
Yes, it would be a good idea to treat the oil stains with Stain Solver before pressure washing the concrete.
Take a before photograph to chronicle the base line of what the oil stains look like before the cleaning process.
Mix 8 ounces, one-half cup, of Stain Solver per gallon of HOT tap water. Stir until completely dissolved. This can take up to ten minutes.
Pour the solution onto the oil stains. Allow to soak for up to an hour. Add more solution if it starts to dry or evaporate.
At the end of the hour wait period, add a generous squirt of liquid Dawn dish soap to the oil stains. Scrub the oil stains while adding a little more Stain Solver solution.
Longer soaking periods, up to three hours, can produce great results if you scrub periodically during the soaking period and add fresh Stain Solver solution.
Rinse the floor. Allow to dry. You can hasten this process with a leaf blower or fan.
Check to see if lots of the oil has been removed. It should be. Allow concrete to dry completely before continuing to repeat the above process until most or all of the oil is removed.
Deep oil stains that have soaked into the concrete for years may be very difficult to remove.