Ashbys anti grease is a prespotter/prespray for traffic lanes etc, ive had fairly good results with it, the customer reckons it was cleaned about a year ago but it was bad, incontinent chihuahua,p*ssed twice while i was there so you can imagine the build up, needless to say im busy the next time it needs doing,i didnt want it this time but stupidly felt sorry for her (near housebound pensioner), still you live and learn!!