TECH Centech Radial OTR repairs are reinforced with Aramid cord for maximum strength and flexibility to the repair unit to help reduce sidewall bulges. Advanced rubber compounds provide longer performance life in the most extreme OTR tyre service conditions. Centech Radial OTR repairs are very flexible, resulting in easy installation, minimizing the chances of trapped air as well as restoring the strength of the tyre with little resistance to the tyre’s flex characteristics. Thermacure cushion gum permanently vulcanizes to the tyre in hot or cold applications.