Tire side wall cracks
Posted August 14 2012 - 7:41 AM
Posted August 14 2012 - 7:58 AM
Posted August 14 2012 - 2:40 PM
Posted August 20 2012 - 7:23 AM
the same thng happened to my xterra and i also had dry rot throughout the treads, the tires where only 2 years old and I called the manufacture and they gave me 60% credit towards new tires. I would change them out not worth the risk.
Posted August 20 2012 - 7:26 AM
Great video never knew one could find the year tire was made. I also need 4 new tires for just this reason age cracks while the tread looks VG the tires do show rot. I am going to replace the tires but want a tire that will be better in the sand than the regular radial tires any suggestions. I wonder what precautions can be taken to try and eliminate this cracking? any treatment that can be applied? I know I cover my trailer tires to avoid sun damage I am wondering if the sun can contribute to this cracking on car tires. I have had one of the tires that show cracking and there is no evidence on the inside of the tire could the cracks be superficial or sort of a cosmetic thing? Lou
Posted August 20 2012 - 9:30 AM
UV light can damage tires, but "dry rot" is not due to vaporization of chemicals from the tires, as suggested. It is actually from air pollution--ozone anyway. Rubber and synthetic rubber are organic compounds--polymers--essentially long chains of elements to make one molecule.
For sake of argument and without further explanation, these molecules have three kinds of bonds holding together the individual elements of the molecule (single, double and triple). The cracks are are not a physical change because of evaporation as stated; but, a chemical change in that double bonds within molecules of tire are broken.
This was just FYI about "dry rot." (If you really need to know more, do some looking into ozonolysis.)
UV, ozone and polymers: fishing line.
Posted August 20 2012 - 1:04 PM
I've heard that that tire shine stuff the people put on to make the sidewalls look all shiny accelerates the dry rotting process of the sidewalls!
Posted August 22 2012 - 1:19 PM