Before Using Foam, Its Necessary to Prepare and Treat the Surface (GAP), Washing it with Water. To this, you can use a regular spray guun, Which is used to moisturize Plants or Linen During Ironing. «Wet Cleaning» of the Place Werek Is Coming, Has a Beneficial Effect on Staging the Foam, T. To. For the Process, it is Important Not only Temperature, But Also Air Humidity.