Answer
Sep 18, 2022 - 11:51 AM
Yes, if the oil stain is organic like cooking oil. It is s slow acting/cleaning process. What happens the oil penetrates deep into the porous concrete and no surface cleaning products will work. SealGreen Gray-Out Waterless Oil Cleaner (gray color) upon application will activate the enzymes and they will slowly crawl into the concrete eating all the oil out. This takes time since it is a microscopic process. Once the enzymes eat all the oil the gray powder will release and go away over time. Apply product according to instructions.
Application Video:
Source: SealGreen Website