RAINSTOPPER® 110, 120, and 140 Silanes are chemical treatments that cause concrete, masonry, limestone, or mineral substrates to become repellent to salt and water.
 
Available in two commercial grades, RAINSTOPPER® 120 or 140, for concrete, masonry, and limestone, with a third grade; RAINSTOPPER® 110 available for brick, synthetic stone, flagstone, and other residential applications.