Positive Material Identification for elastomers

Question

Positive Material Identification for elastomers

Corgas (Materials)

(OP)

24 Mar 17 15:45

Hello colleagues,

We are trying to sort out sheets that are supposedly made of BUNA N and FKM.

Hardness shore A for both materials are very similar 70 vs 75. Is there another non-destructive method that we can use?
Thanks in advance,
Corgas

MintJulep (Mechanical) · Answer 1 · 2017-03-27 17:28:18

http://www.satoriseal.com/technical/technical_arti...

tbuelna (Aerospace) · Answer 2 · 2017-04-03 07:01:04

To be "positive" about your material supply, next time make sure you have a procedure to control/document the raw material stock thru purchasing/receiving/inventory/fabrication/acceptance/etc. If the sheet material in question is not a significant cost, it would be best to order new material with documentation that can be used to positively track the material throughout your manufacturing process.

israelkk (Aerospace) · Answer 3 · 2017-04-03 11:23:15

Identifying rubber is an art. You can burn a piece and see and smell it and differentiate between them. I used to work in for Military & Aerospace company where there was a lab and experts that by very simple techniques could tell the difference, Sure, there will be cases that more accurate scientific methods are needed. I suggest you google for such techniques.

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Positive Material Identification for elastomers