I had 3 Mid-Easterners stop by and want to coat my Driveway. They had a pickup truck with a pump and tank along with crushed asphalt. They were going to put the particles of asphalt in all the cracks and then coat the whole drive with a coating. It would have had a 72 month guarantee. The price started at 48.00 a gallon and then it was down to 30.00 a gallon. Did not take them up on their offer. Question does this appear to be gypsy scam and does anyone know of what I can put down that will do a good job and last??