“I highly recommend seal it classic product - a protective seal is now on the concrete path to our front door and on driveway from tree fallout that created bad brown stains. Dean and Caily provided great service, support with product being delivered promptly / including providing me a free return by mail slip and crediting my account promptly when I bought the wrong pack size pack. My only suggestion was to better measure the area / work out more accurately the pack size needed - I should have bought a 10L / not 3x4L as my concrete was quite thirsty :-) I’ve tried many things to guy the problem abd this is the only one that has worked !!’”