OneRestore速 GEL is a versatile, gelled restoration detergent that allows extended dwell times for tougher situations. OneRestore速 GEL is capable of removing the deepest stains from a wide variety of surfaces, including metal oxide stains. The extended dwells will allow more time for the product to work as well as more time for rinsing. OneRestore速 GEL is especially powerful under sills and other areas that do not get a lot of sun. This product can stand alone or be used in conjunction with OneRestore速 as a phenomenal one-two punch. With the extended dwell times, precautions should be taken not to allow it to sit on glass or anodized aluminum.