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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. 539

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Food Contact Substance:  A copolymer of 4-bromo-3,3,4,4-tetrafluoro-1-butene, ethylene, tetrafluoroethylene and trifluoromethyl trifluorovinyl ether optionally cured with triallyl isocyanurate and 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane. (CAS Reg. No. 105656-63-1)
Notifier:  E.I. du Pont de Nemours and Company
Manufacturer:  E.I. du Pont de Nemours and Company
Intended Use:  For repeat-use in the fabrication of molded parts such as o-rings and gaskets for food processing equipment.
Effective Date:  11/22/2005
Limitations/Specifications:  The base fluoropolymer may be compounded with no more than 3.0 weight-percent of triallyl isocyanurate and 2.5 weight-percent of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane. Articles containing the FCS are intended to contact all food types under Conditions of Use A through H.
Environmental Impact Decisions:  Environmental Decisions Site