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.
United States Rubber Company company again expanded the plant in 1965 to produce tires for construction machinery, and for many years it was the largest private employer in Eau Claire and the second largest in neighboring Chippewa Falls before it was closed in 1991. In late 1943, U.S. Rubber engineer Dr. Louis Marick developed a propeller de-icing system in which a rubber boot was fitted onto the leading edge of a propeller. The boot contained wires that conducted electricity to heat the edge and break-up ice. In 1958, Uniroyal entered into a partnership with the Englebert tire company of Liège, Belgium, which became known