FDA vs. LFGB Silicone: What Industrial Buyers Need to Verify
Food-contact suitability must be evaluated for the exact silicone compound, finished article and intended conditions of use.
Buyers frequently ask whether silicone is “FDA approved” or “LFGB certified.” Those phrases are convenient, but they can hide important differences between a United States regulation, German food-law context, BfR recommendations, material formulation and finished-article testing.
What buyers usually mean by “FDA silicone”
For repeated-use rubber articles in contact with food, buyers often reference 21 CFR 177.2600. The regulation defines permitted constituents and extractive limitations for rubber articles intended for repeated use. A supplier should connect any statement to a specific compound and the intended food-contact conditions.
What buyers usually mean by “LFGB silicone”
LFGB is Germany’s Food and Feed Code. For silicone food-contact materials, industrial specifications often also reference the German Federal Institute for Risk Assessment’s Recommendation XV on silicones. BfR explains that its food-contact recommendations are not themselves binding legal standards, but represent the current state of science and technology for relevant materials.
Recommendation XV includes provisions for silicone elastomers, including starting materials, production aids and limits on volatile and extractable components. The applicable assessment still depends on the final construction and intended use.
Why the labels are not interchangeable
| Question | FDA-related request | LFGB/BfR-related request |
|---|---|---|
| Reference | Often 21 CFR 177.2600 | LFGB context and BfR Recommendation XV |
| Evidence | Compound declaration and applicable extraction data | Formulation review plus applicable volatile, extractable or migration evidence |
| Scope | Exact compound and intended contact conditions | Exact compound, finished article and intended conditions |
Documents to request from a supplier
- Exact material grade or compound identification
- Declaration naming the applicable regulation or recommendation
- Test report with sample description, laboratory, method and date
- Color and thickness represented by the evidence
- Statement of intended contact type, temperature and duration
- Traceability or change-control expectations for production
Common sourcing mistakes
Accepting a generic certificate
A report for one translucent compound does not automatically cover every pigment, hardness, reinforcement or adhesive-backed construction.
Ignoring the finished article
Post-curing, cleaning, geometry and thickness can influence volatile or extractable results. Ask whether the tested sample represents the supplied product.
Using “food grade” without defining the market
Write the exact regulatory reference and end use into the RFQ and purchase specification.
Need a manufacturable silicone specification?
Send LSAN your drawing, application conditions, target quantity and documentation requirements for an engineering review.