Hello an welcome to a new plastic part marking code example.
Example >PARA-(CF+MEF(x))<
Based on ISO 1043 (specifically ISO 1043-1 regarding plastics symbols), the notation >PARA-(CF+MEF(x))< is a part marking code used to identify the material composition of a molded plastic component made out of PolyarylAmide (PARA; PA-MXD6).
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| Figure 1: Plastic part marking example with focus on special additives. |
Here is the breakdown of that marking:
PARA: PolyArylAmide (PA-MXD6) - the base polymer.
CF: Carbon Fiber
MEF: This indicates a specific, likely proprietary, modification or additive blend. In the context of this material, it refers to special filler package, potentially containing Metal fillers, Elastomers, or special Fillers (MEF) which are used to enable EMI-shielding.
(x): Often followed by a number (e.g., in a technical data sheet, it might appear as >PARA-MEF(1)7<, this indicates the specific grade or a percentage/variant within the supplier's internal classification system.
> <: The angled brackets indicate that the part is marked in accordance with ISO 11469 for identification and recycling, as required for parts over a certain weight.
Check out my other part marking posts too:
Plastic Part Marking – Overview Codes and Standards (incl. miniguide for downloading)
Thanks for reading and #findoutaboutplastics
Greetings,
Herwig
Literature:
[1] https://www.findoutaboutplastics.com/2020/12/plastic-part-marking-overview-codes-and.html
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