An integral part of the tyre production process, calendaring is where textile and steel cords are “sandwiched” between two layers of compound to form sheets. These sheets, when superimposed over each other during tyre assembly, create the casing ply and breaker belts (below the tread) required for strength, shock resistance, compliance and durability.
1. Ply; 2. Rubber compound; 3. Calendered ply