Devulcanization Technology

When rubber is formed into a tire, it is vulcanized. This is a process where rubber is mixed with sulfur and exposed to heat. The result is a hard, durable rubber product – perfect for making tires. However, vulcanized rubber is difficult to recycle because it cannot be easily reformulated.

We use a supercritical, carbon dioxide assisted, thermal-mechanical extrusion process to continuously convert scrap tire rubber into Tire-Derived Polymer, or TDP. No devulcanization chemicals or chemical solvents are used in the process.

See video below – Tyromer devulcanization technology in action.

Tyromer Devulcanization

Our patented process has successfully devulcanized different scrap tire crumbs – whole-tire, tread-only, ambient grind, cryo-grind, truck retread buffing, OTR retread buffing, etc. from 20 mesh to 60 mesh.

Our technology can also devulcanize non-tire rubbers such as EPDM and silicone rubber for reuse.

The Tyromer technology features the following unique benefits:

  • Environmentally sound: No devulcanization chemicals or chemical solvents are used.
  • Rapid devulcanization: from crumb feed to in less than two minutes.
  • Reliable process: continuous operation by mature extrusion equipment.
  • High conversion: 99%+ conversion rate of crumb to .
  • Energy efficient: less than 400 kWh per Metric Ton of .
  • Broad applicability: works for scrap tire crumbs, EPDM, and other rubbers.