“HOT” Retreading:

Hot Retreading involves the vulcanization of a tire in a mold at a temperature of around 150 °C. The tread and the sidewall veneer of the tire are made up of non-vulcanized rubber compounds. The shape and tread of the tire are created in the heating press.

Arguments in favor of hot retreading:

  1. Suitable for all tire applications, including car and aircraft tires.
  2. Material costs are lower than the more complex products required for precure retreading.
  3. Hot retreading also allows extensive repairs to be carried out on the tire carcass (e.g. belt replacement).
  4. Even bias-ply carcasses can undergo hot retreading without any problems.

Points to note:

  1. A separate mould is required for each tread and size. This requires a high level of investment in a range of moulds, which will be need to be regularly updated.
  2. The production process needs to be designed for large numbers of tires. This calls for a central production workshop, an extended customer area and therefore brings with it relatively high logistics costs.