Product development

Green Diamond Tires are an Icelandic invention. The patent for the production method is held by New Industries Ltd, of Reykjavík, Iceland.

The patented technique is licensed for use by several progressive producers of tires in the manufacture of the Green Diamond Tire. 

The high standards of performance of Green Diamond Tires are based on the thousands of small sharp-edged granules making firm contact with the icy road surfaces, giving them superior traction without the hammering and damaging effect of studded tires.

Green Diamond Tires eliminate the two serious drawbacks of studded tires, road wear and noise emission. This is achieved while maintaining control effectiveness in slippery conditions and prolonging the wear of the tire.

The success of Green Diamond Tires is 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 manufacturing a Green Diamond Tire, the granules are distributed evenly throughout the rubber. This infusion 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 vehicles equipped with anti-lock braking systems (ABS), with superior, scientifically-proven performance against any other tires with in the most difficult of slippery conditions, around 0°C. 

Green Diamond Tires are produced in both winter patterns and all-season patterns (light truck only). For use in areas with heavy snow, the winter patterns are more suitable and for regions with less snow but more ice on the roads, all-season tread patterns are generally better suited.

Green Diamond Tires must be 'run-in' by driving 1,500 to 2,000 miles on clear, dry roads.  It is during this driving period that the silicium carbide granules will begin to emerge.  To protect the manufacturing equipment, Green Diamond Tires have a thin veneer of ungranulated tread rubber molded over the  granules, which 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 a main benefit and 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.