not to recommend any action in the outdoor area

have the means 2 x applied within 4 weeks, unfortunately, is the effect to zero.
This includes an outside staircase Granite black, virtually no impregnation.
Now we had from a supplier of oil to the shoes had probably two spots in the granite.
Wipe unsuccessfully is fully retracted "Super", also is the dog like on the stairs and going through his Leftzen not even these can be easily wiped away even stains.
Perhaps also as granite exterior stairs a wrong decision but this means at the price useless.
Will try it another and hope for success

two stars because it is easy to apply.

Addendum.
To avoid stains I now famous after a rain check that the water droplets form as for a car wash.
Is that not the case necessarily to impregnate because then lack of protection and patches are only a matter of time. So every 4 weeks !!! not good.