SILASTOMERS 333, 334, 336 (FDA  APPROVED):

When fully cured and washed, Silastomers 333, 334 and 336 meet the requirements of FDA Regulation No. 21 CFR 177.2600 (formerly 121.2562) subject to and use compliance with any applicable total extractives limitations.

Hernon 317, Two-Part Epoxy (FDA  APPROVED):

Cured coating formulated with Hernon 317 epoxy resins, crosslinking agents and adjuncts may be safely used as food-contact surfaces and conform to listing in section 175.300, Title 21 (21 CFR 175.300) of the Code of Federal Regulations. The cured Hernon 317 epoxy coating may be applied over a metal or other suitable substrate as a continuous film that serves as a functional barrier between food and the substrate. Please review the regulations.