Answer
Oct 27, 2021 - 02:31 PM
SealGreen Gray-Out Waterless Oil Cleaner is a light gray color close match to new concrete color. Wherever you apply the product it will look light gray until it removes the oil stain then it will release from the concrete surface and leave the concrete with it original color.
The product was designed to remove organic oil stains (Basic car oils – No composites). They are an infinite number of oils in the market, this makes it impossible to offer a warranty that it will remove every oil stain or stains that look like oil stains, but they are not. But considering that there are truly little alternatives to remove oil stain from concrete SealGreen Gray-Out offers an exceptionally good option to try.
SealGreen Gray-Out Waterless Oil Cleaner once it is applied to the surface when it is dry it will stick to the concrete after 2 -3 days. It will release after it has removed the oil on its own. If it rains during the initial 1 or 2 days it has the potential to wash away. Reapplication will be necessary.
Depending how much oil is inside the concrete a re-application may be necessary from time to time. If after some time you see the oil spot appear on the concrete it is time for a re-application.
Source: SealGreen Website