Customer Portal
Products
Waverly Carbon makes two Recovered Carbon Black products:
Waverly Emerald 225 – rCB grade in pelletised form
Emerald 220 is our rCB material in powder form, produced to a tied specification. It is made from a blend of passenger and truck tyre, raw material feedstock in fixed proportions to ensure consistent quality. The material is milled to a fine particle size to improve consistency and dispersion when added to plastic or rubber compounds. The powder also helps it disperse easily in aqueous solutions or very low viscosity compounds.
Waverly Emerald 220 – rCB grade in powder form, specifically designed for the coating sector
Emerald 225 is our rCB material in pellet form, produced to a tied specification. Like Emerald 220, it is made from a fixed blend of passenger and truck tyre feedstock. After milling to a consistent particle size, the refined rCB powder undergoes a secondary process in which it is pelletised to produce uniform pellets, similar to virgin carbon black pellets. Pelleted material improves bulk handling in factory conveying systems – such as conveyors, belts, dosing units and pipes – and supports better dispersion in plastic masterbatch and rubber compounding.
Our Emerald grades can be used as a replacement or high-percentage partial replacement for many ASTM carbon black grades.
Characteristics
- RCB from end of life tyres contains about 80% carbon black, and 20% other constituents such as silica and zinc. These are often referred to as impurities or ash content. While they can reduce the reinforcing properties of the rCB, they can also improve rCB’s overall qualities.
- Using rCB offers environmental and technical benefits for masterbatch manufacturers and rubber compounders, providing a sustainable alternative to virgin carbon black.
- Uniform particle size distribution (PSD), essential for high-end applications in coatings, plastics, and rubber goods, ensures greater property and dispersion consistency.
- rCB is often pelletised to increase bulk density, making shipping, storage, handling and mixing easier. Pelletising allows up to four times more material to be packed into a bulk bag compared with powder.
- rCB can also help achieve an Improved matt surface finish when required.
.
Applications/industries
Recovered carbon black is a high performance, circular alternative to virgin carbon black, delivering strong reinforcement, pigmentation, and sustainability benefits across multiple industries. Its unique structure and carbon footprint advantages make it suitable for a wide range of technical applications.
Rubber & Tyre Compounds
rCB integrates seamlessly into non critical and semi reinforcing rubber formulations, offering both performance and sustainability gains. Typical uses include:
- Inner liners and sidewalls
- Tread underlayers
- Butyl rubber compounds
- Industrial rubber goods.
Mechanical Rubber Goods (MRG)
A rapidly growing segment where rCB delivers excellent value and reliable performance:
- Conveyor belts
- Anti vibration components
- Seals, gaskets, and hoses
- Footwear soles
Plastics & Masterbatch
rCB provides strong tint strength, UV protection, and circularity benefits in:
- PE and PP compounds
- ABS and PS
- PVC applications
- Black masterbatch for films, pipes, and moulded parts
Coatings, Inks & Pigments
High surface area rCB grades support pigmentation and conductivity in:
- Industrial coatings
- Powder coatings
- Printing inks
- Antistatic and conductive finishes
Conductive & Antistatic Applications
The inherent structure of rCB enables cost effective conductivity for:
- ESD flooring
- Antistatic packaging
- Conductive plastics
- Battery housings
Advanced Carbon Applications
Emerging pathways leverage rCB’s high fixed carbon content:
- Activated carbon production
- Gasification and carbon rich composites
- Chemical feedstock applications
Performance
Dynamic Behaviour
Due to the morphology of rCB—derived from the original virgin carbon black grades used in tyres—and its high structure and surface area, our rCB delivers strong dynamic performance. With reinforcing properties comparable to semi-reinforcing ASTM carbon black grades, it provides low hysteresis, lower storage modulus, and low Tan Delta compared with conventional carbon blacks used in similar applications.
High Strength Applications
For applications requiring greater reinforcing properties, we use rCB with a higher carbon black concentration. This is achieved through careful feedstock selection and optimised pyrolysis process settings that minimise volatile content and carbonaceous deposits.
Low Electrical Conductivity
Normal furnace carbon black has a graphitic character that allows electrical conductivity to vary depending on its structure and surface area. Recovered carbon black contains some inorganic material and saturated carbon on its surface, meaning its electrical resistivity sits between pure and oxidised furnace black. This makes rCB suitable for applications requiring low, stable electrical conductivity, with performance that remains consistent regardless of loading levels in the compound.
Contact Us
Please contact us for more information about
the Waverly Carbon and our partners.