Greenseal GS-200 dry powder broadcast and floated into concrete slabs will protect the floor from spalling due to oil, salt and freeze/thaw action. Since Greenseal is worked thoroughly into the concrete during the finishing operation, the penetration of the chemicals in Greenseal is fast since the chemicals use the moisture of hydration. Gasoline, oil spillage, road salt and moisture cannot penetrate the Greenseal surface ensuring longing life to your parking garage floors.