In the production of "green tyres, the hybrid crosslinker Vulcuren has a reputation as a balanced anti-reversion agent and a scorch-proof secondary accelerator. The additive optimises vulcanisation during tyre manufacture and also functions as an anti-reversion agent to improve product performance. It generates thermally stable carbasulfane crosslinks in the elastomer matrix that are not subject to the typical rearrangement reactions of vulcanisates that are crosslinked with sulphur. Thus, it provides protection against the slow hardening of SSBR rubber, which, with increasing age, can have a negative impact on the wet grip properties. In its function as a secondary accelerator, it also supports the development of tyres with low rolling resistance based on silanes such as Si 363.