Retreading is a process through which we can use our old tyres. In this method, a worn casing of a tyre that has a good structural quality is taken off and put through a process in which it gets a completely renewed tread and sidewall rubber. After that, the revamped tyre is taken forward for a curing process in which the new rubber is vulcanized to the original casing and hence, the tyre gets a newly made tread pattern. I recently had a job doing this in the U.S (Ohio) and most of the steps they did was similar, but for instance. After the tire came out of the Oven the side walls of the tire was painted. The tire also never touched the ground once the process started. Definitely an interesting job, and it takes a lot of skill to get them correct. Fascinating to watch with somewhat different equipment. I grew up working in my Dads tyre retreading and recap factory in New Zealand. Everyday after school and school holidays thru the 1990's. At that time Dad has been retreading longer than anybody else in NZ and he worked 6 days a week. When I was 15 I started work full time. I did everything with the exception of buffing heavy truck tires which were a 2 man job.