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.
GRI Tires GRI Tires GRI (Global Rubber Industries, Pvt. Ltd.) is a tire manufacturer in Sri Lanka producing industrial and specialty tires for the global market. GRI produces tires for over 50 countries across the world. GRI was established in Sri Lanka in the year 2002 by Prabhash Subasinghe, its current Managing Director. GRI is headquartered in Sri Lanka and operates in six countries including the United States, Germany, France, Netherlands and Australia. The company’s first off-shore sales offices were established in the United States and France in 2003 . It opened its latest sales and service offices in Australia in Brisbane,