How to identify Kynar (PVDF) insulation?

[e100]

(Originally posted in Beginners, but didn't receive any replies)
I bought some cheap wire wrap wire which claims to be PVDF insulated.
The insulation is easily damaged and can be stripped just using fingernail pressure and turns white if you stress it.
If real PVDF slippery like PTFE and difficult to strip?

[filssavi]

The simplest method that i can think of is to use a temperature controlled soldering iron to find the softening/melting point of the insulation tht should narrow It down, pvdf is also quite chemically stabile, so there might be some chemically that attacks most plastica but leaves intact pvdf( you should ask someone with more of a chemistry background than me if you want ti take the route TBH)

[jpanhalt]

Kynar is in my opinion easy to strip.  It is a little slippery compared to PVC, but not nearly so slippery as Teflon.  Its finish is duller than Teflon and it feels harder than PVC.   In my experience, the main distinguishing feature compared to PVC is that it doesn't shrink back and char nearly as much.  I can't recall ever causing it to char.

It is the only wire I use (24 awg) when I am using a solderable breadboard.

John