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 in 2014 followed by another in Melbourne in 2015. Currently, GRI is one of the major tire manufacturers operating in Sri Lanka. GRI’s main products are Material Handling tires; a tire used on material handling equipment such as forklifts. These tires are produced using natural rubber compounds, which have properties of high-heat dissipation, high run-time and low rolling resistance . GRI also produces tires required for agricultural purposes which are used in farming vehicles especially those in tractors and harvesters. Agricultural tires are unique in aspects of tread pattern & high-load carrying capacity. Other tires produced by GRI include Industrial