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U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications

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FCN No. 2420

Cancarb Limited

According to Section 409(h)(1)(C) of the Federal Food, Drug, and Cosmetic Act, food contact substance notifications (FCNs) are effective only for the listed manufacturer and its customers. Other manufacturers must submit their own FCN for the same food contact substance and intended use.
Food Contact Substance: Carbon Black (Thermal Carbon Black or Thermal Black) (CAS Reg. No. 1333-86-4).
Notifier: Cancarb Limited
Manufacturer/Supplier: Cancarb Limited
Intended Use: To improve the physical properties, like tensile strength, of repeat-use rubber articles, such as gaskets, hoses, tubing, O-rings, and conveyor belts, used as components of food processing equipment, except for use in contact with infant formula and human milk (see Limitations/Specifications).
Limitations/Specifications: The FCS will be used at levels not to exceed 50% by weight in the finished articles in compliance with 21 CFR 177.2600. The FCS is not for use in contact with infant formula and human milk. Such uses were not included as part of the intended use of the substance in the FCN.
Effective Date: Mar 15, 2025
National Environmental Policy Act (NEPA)** Submission: Categorical Exclusion 25.32(j)
FDA Decision: Categorical Exclusion Memo
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