The rubber compound of a tire consists of several components:
- Natural and synthetic rubber
- Fillers, e.g. carbon black, chalk, silica
- Softeners, e.g. oils and lubricants
- Anti-aging agents (aromatic amines)
- Vulcanizing aids, e.g. sulfur
- Vulcanization accelerators; e.g. zinc oxide
- Pigments and dyes
Depending on the compound, the rubber content is around 40-60%. The filler amounts to 15-30% and the remaining components approx. 20-35%.