Reuse is the operation whereby non-waste products or components are used again for the same purpose for which they were originally designed.
Reusable used tyres are mainly used for the second hand tyre market or for retreading.
Retreading essentially consists of replacing the worn tread with new one. Retreading is thus a way of extending the service life of a tyre through re-use.
The retreading process commences with a detailed inspection of the carcasses to make sure they are not damaged and, therefore, that tyre performance and safety are not compromised. The next step is to scrape off the old tread before bonding a new one which is then vulcanised.
Retreads offer the same performance characteristics as a new tyre, namely:
Good road behaviour
Grip on all types of road surface
Retreading delays the generation of a worn carcass and contributes to significant savings in raw materials given that ony 25% of new materials are added.
Is retreading governed by regulations?
The production of retreaded tyres is subject to international regulations governing approval (United Nations Geneva Convention R-108 for passenger car tyres and R-109 for commercial vehicles). These Regulations require retreaded tyres produced in approved facilities to meet a series of technical prescriptions.
Tyres which are classified as reusable for the second hand tyre market have been certified by a specialist as being suitable for continued road use.
Responsibility for second-hand tyres lies with the vendor and hence sorting must be performed by qualified staff capable of detecting, down to the smallest detail, whether or not a tyre is suitable for this market.