When Grinding Rubber, the compound can quickly build up of rubber on the face of the Grinding Wheel. The friction then generated by the rubber-on-rubber contact, as the wheel cuts, combined with the poor thermal conductivity of rubber, lead to excessive heat generation and difficulty in the Grinding process.
Heat build up can lead to potentially lethal wheel cracking and breakage.
This problem manifests itself most acutely when vitrified wheels are used to grind soft rubbers.
For this reason, Rolmacon Global are hesitant to supply vitrified grinding wheels for this application.