That seems to work somewhat like the solution that I got from Sears for my garden tractor tires. You put it in before or after you have a puncture and then drive around for a little while to spread it all inside the tire and it acts as a sealant and also almost like a lubricant as it keeps the inside of the tires flexible and it works itself into the rubber. I ran over a piece of heavy wire with the front tire and pulled it out and I could just barely see where the green stuff came into the hole and it has never leaked. Also took a tire off after a year and looked at the inside and it looked like brand new. I have wondered if it would work on a car tire.
Ron