What Is rCB Grades & Specs Applications Quality Sustainability For Buyers Contact

Recovered carbon black — the sustainable alternative to virgin carbon black.

A lower-carbon-footprint substitute for furnace carbon black in tyres, rubber and masterbatch — explained for technical buyers.

What recovered carbon black delivers

N330 / N550 / N660
the virgin grades rCB replaces in compounds
Tyres first
the largest application for rCB
8 facilities
Klean rCB plants delivered in India
5 more
signed under Letter of Intent

Recovered carbon black (rCB) is a high-carbon material recovered from end-of-life tyres through pyrolysis, offering a lower-carbon-footprint substitute for virgin carbon black across rubber and plastics.

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Grades & specifications

rCB functionally replaces a portion of the N300, N500 and N600 series of virgin furnace grades. Emerging standards make spec-based procurement practical.

ApplicationVirgin grade replaced
Tyre compounding (tread / sidewall)N330, N550
Non-tyre rubber goodsN550, N660
Masterbatch & plasticsN600 / N700 series

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Where it's used

Tyres

The largest application — sidewall, liner and undertread.

Technical rubber

Hoses, mats, seals and moulded goods.

Masterbatch

Pigment, UV stability and conductivity.

Coatings & inks

Colour and conductive compounds.

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Backed by real production capacity

Klean has built 8 recovered carbon black facilities in India over the past two years, with a Letter of Intent for 5 more, and is recognized by the Canadian government (DFAITC) for circular-economy leadership.

Evaluating rCB for your compound?

Tell us your application and the virgin grade you're replacing — we'll match you to the right rCB specification.

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