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.
The Factory time Warhol had achieved a reputation, he was working day and night on his paintings. Warhol used silkscreens so that he could mass-produce images the way corporations mass-produced consumer goods. To increase production, he attracted a ménage of adult film performers, drag queens, socialites, drug addicts, musicians, and free-thinkers who became known as the Warhol Superstars, to help him. These "art-workers" helped him create his paintings, starred in his films, and created the atmosphere for which the Factory became legendary. Speaking in 2002, musician John Cale said, "It wasn't called the Factory for nothing. It was where the assembly line