Silicone compliance is more than just RoHS.
This article summarizes the core differences between RoHS, REACH, and PAHs and their implementation priorities.
1. What common compliance requirements govern
- RoHS: Restriction of the content of certain hazardous substances, commonly found in electrical and electronic products.
- REACH: Focus on SVHC (Substances of Very High Concern), etc., with emphasis on supply chain messaging.
- PAHs: mostly found in automobiles, toys, etc., with strict restrictions on PAHs
2. Why silicone can be a "minefield"
- Colorants/masterbatch, auxiliaries, plasticizing systems may introduce risky substances
- Recycled materials or additives of unknown origin can significantly increase uncertainty
3. The right posture for information preparation
- Material level: Supplier declaration + COA + third party report if required
- Product level: Selection of test items and methods according to customer and market requirements
- Batch level: Ensuring that "the batch you deliver" is traceable to material and production records
4. Change management: compliance fears a "quiet change of material"
- Define change triggers: recipe, supplier, process parameters, color masterbatch
- Revalidation strategy after change: sampling/full inspection/third-party retesting
5. Procurement and vendor management checklist
- Confirmation of the list of prohibited substances
- Lot traceability and sampling rules
- Report validity and scope of application (color/thickness/process)
FAQ
- Can the same report cover all colors?
Usually cannot. Color and additive changes can affect results and it is recommended that they be covered by risk rating.
- REACH Do I need to be tested?
In many cases the emphasis is more on declarations and messaging, but testing support may also be required if requested by the customer or if there are high-risk materials.