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 Development of Since 1995 New Industries Ltd has developed a new technique for mixing hard granules into the tread body of a tire. The production has now entered mass production levels for the Northern European market. The patented technique is now used by several producers of tires for the production of Green Diamond Tires. The performance of Green Diamond Tires is based on the many small sharp-edged granules making firm contact with the icy ground, giving it extra traction without the hammering effect of studded tires. Green Diamond Tires eliminate the two main drawbacks of studded tires, road wear and noise emission. This is done while still maintaining it's effectiveness in slippery conditions and prolonging the wear of the tire. The success of Green Diamond Tires has already been confirmed in Iceland by a rapid increase in market share, reaching 10% for winter tires in competition with studded tires and other brands of winter tires. In Sweden the production has increased from 3,000 tires in 1998-99 to 15,000 in 1999-2000 and is expected to exceed 50,000 in the 2000-2001 winter season. |
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What is a Green Diamond Tires are tires in which hard granules are distributed evenly on all the wear-surfaces of the tire. These granules provide better traction in slippery conditions. Hard granules (silicium carbide and aluminum oxide) are used as a substitute for industrial diamonds, fixed to grinding wheels and sprockets, e.g. in the metals industry. In the manufacture of Green Diamond Tires, the granules are spread evenly throughout the rubber. This even distribution of the granules throughout the tire’s wear surface ensures that as the tire wears down and granules are worn away, new ones are uncovered. Green Diamond Tires are particularly suitable for use with ABS braking systems, and perform best against other tires in the most difficult of slippery conditions, around 0°C. Green Diamond Tires are an Icelandic invention. The patent for the production method is held by New Industries Ltd, Reykjavík, Iceland. Green Diamond Tires are environmentally friendly. |
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Use of Green Diamond Tires Green Diamond Tires are produced in both winter patterns and all-season patterns. For use in areas with heavy snow, the winter patterns are more suitable but for areas with less snow but more ice on the roads then the all-season patterns are better suited. Green Diamond Tires should normally be run-in by driving 500 to 1,000 km on clear roads. This will bring out the granules located in the top of the tread since new Green Diamond Tires have a thin layer of rubber over the granules, which soon wears off in use. As the Green Diamond Tire wears, some of the visible granules fall out of the tire and new granules appear. This feature is the main attribute of Green Diamond Tires since the granules enhance the pattern as the performance of the pattern itself decreases with wear. This applies particularly to studded tires; tests show that after 10,000 km on the road a studded tire has lost 85% of it's added properties. TODAY'S REMOLDED TIRES   |
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