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U.S. Department of Health and Human Services

Inventory of Food Contact Substances Listed in 21 CFR
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FCN No. 2451

PPG Industries, Inc.

Consult the regulation(s) cited below to see if your substance is authorized for your intended use.
Food Contact Substance: Acrylic copolymers of styrene (CAS Reg. No. 100-42-5), glycidyl methacrylate (CAS Reg. No. 106-91-2), and, optionally, ethyl acrylate (CAS Reg. No. 140-88-5), butyl acrylate (CAS Reg. No. 141-32-2), methyl methacrylate (CAS Reg. No. 80-62-6), methacrylic acid (CAS Reg. No. 79-41-4), acrylic acid (CAS Reg. No. 79-10-7), hydroxyethyl methacrylate (CAS Reg. No. 868-77-9), butyl methacrylate (CAS Reg. No. 97-88-1), and/or lauryl methacrylate (CAS Reg. No. 142-90-5). REPLACES FCNs 2175 and 2226
Notifier: PPG Industries, Inc.
Manufacturer/Supplier: PPG Industries, Inc.
Intended Use: As a polymer used in the manufacture of coatings, otherwise compliant with 21 CFR 175.300, on metal substrates for single-use food-contact articles or on any substrate for repeated use food-contact articles, except for use in contact with infant formula and human milk (see Limitations/Specifications).
Limitations/Specifications: Coatings containing the FCS may contact: Food Types I, II, IV-B, VI-A, VI-B, VI-C (up to 15 percent alcohol), VII-B, and VIII under Conditions of Use A through H; Food Type VI-C (up to 20 percent alcohol) under Conditions of Use C through G; and Food Type VI-C (up to 50 percent alcohol) under Conditions of Use E through G, as described in Tables 1 and 2. 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: Jan 8, 2026
National Environmental Policy Act (NEPA)** Submission: Categorical Exclusion 25.32(i) and (j)
FDA Decision: Categorical Exclusion Memo

* Definitions

  • CAS Reg. No. (or other ID): Chemical Abstract Service (CAS) Registry Number® for the substance or a numerical code (other ID) assigned by HFP to those substances that do not have a CAS Registry Number (977nnn-nn-n series).
  • Substance: The name of the additive as recognized by HFP.
  • 21 CFR: The Code of Federal Regulations, Title 21 is the preferred reference to determine the regulatory status of Indirect Food Additives. Substances whose names appear in 21 CFR, parts 175-178 are authorized for specified intended users and conditions of use as stated in the regulation. Note that substances may appear in more than one regulation, or several times in the same regulation.

Note that if a substance is mentioned in 21 CFR parts 175-178 and thus, is listed above, any other citations for the same substance in other sections of 21 CFR dealing with food additives (parts 1-199 inclusive) may also be cited.
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