Positive Material Identification for elastomers 1

[Corgas]

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]

http://www.satoriseal.com/technical...ompound_identification_in_quality_control.htm

 

[tbuelna]

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]

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.