Several Momentive Performance Materials RTV silicone rubber compounds can be evaluated for food contact applications where FDA, USDA and NSF regulations apply.
FDA STATUS
The following one-part RTV silicone rubber compounds may be used in repeated contact with foods under FDA regulation 21CFR177.2600 “Rubber Articles Intended for Repeated Use” (and, by reference, 21CFR175.300 “Resins and Polymeric Coatings”).
The Use of these Sealants is Subject to the Following Conditions: The sealant must be applied in accordance with good manufacturing practices at a thickness not to exceed 6mm (1/4”) from an exposed edge, and as a continuous film between joints acting as a functional barrier between the food and the substrate (the area underneath the joint).
The sealant must be cured for a minimum of 14 days at 25°C (77°F) and 50% RH. The sealant must be thoroughly cleansed before the first use.
The sealant, when properly cured, must comply with the extractives limitations at temperatures up to and including reflux applications. The user should verify compliance with extractives limitations at higher temperatures.
Compliance with 21CFR177.2600 does not authorize use of these sealants for the manufacture of baby bottle nipples.
All previously mentioned sealants must be evaluated to determine bond strength for each specific application. If greater adhesion is required, the evaluation of primer
SS4044 (clear) is recommended. SS4044 may be used in repeated contact with food under 21CFR175.105 “Adhesives” and used in conjunction with the RTV products covered under 21CFR177.2600. |
