Now, how can you measure the degree of weather checking?
Visually, a person can make an educated judgment as to the severity of the cracking, with the help of a visual reference guide. As an example, Bandage Inc., a leader in tire retreading technology, has such a tool. It is a visual template that is held up to the sidewall of a tire being prepared for retread. On the template are graphic example of the varying degrees of weather checking. By placing the template against the sidewall on an un-mounted, un-inflated tire with beads in a natural state, a person only has to make sure that the condition of the sidwall is not visually worse that the desired displays three difference degrees of ozone cracking: acceptable, suspect, and reject (see illustrations). Bandag, with more than 40 years experience, and a process used in more than 100 countries has established itself as an industry leader. By using a visual reference, a person can make an educated decision as to the degree of weather checking on a tire.