Siping (rubber) wear and extends the life of the tire. Both Bridgestone and Michelin sell snow tires that are siped at the factory, while Saf-Tee Siping and Grooving sells machines that can sipe most standard vehicle tires. Siping can also be done by hand. Siping tires may void the manufacturer's warranty. Claims that extended life is achieved by siping may only apply to certain environments, operating temperatures, and rubber compound builds. Siped soles are a characteristic feature of boat shoes. Siping (rubber) Siping is a process of cutting thin slits across a rubber surface to improve traction in wet or icy conditions.
Cooper Tire & Rubber Company is still occupied by Cooper Tire, adjacent to The Cooper Corporation facility. The Cooper name originates from 1919 when Cincinnati auto-parts dealer I. J. Cooper formed The Cooper Corporation in Findlay, to manufacture new tires. The Cooper Corporation, the M and M Company, and The Falls Rubber company merged in 1930 to form the Master Tire and Rubber Company. The company name was changed to Cooper Tire & Rubber Company in 1946. The Cooper oval trademark with the Cooper Knight headgear was first registered and used in 1941. In those early years of the brand's identification, the logo also included