TwinTurbo.NET: Nissan 300ZX forum - I did a bit of testing...
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Subject I did a bit of testing...
     
Posted by LitlElvis on November 26, 2021 at 12:44 PM
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In Reply To Re: Re: Just PNs and RH LH marks moulded into the back of them posted by Kvert on November 23, 2021 at 10:09 AM
     
Message 1) sinks in water

2) Acetone does not affect the material

3) burn test 1 - self extinguishes when flame is removed

4) burn test 2 - does not drip when exposed to flame

Based upon these observations and using this plastic identification flow chart:

(https://www.stanmech.com/uploads/2/1/0/9/21099874/plastics_identification_flow_chart.pdf)

I think these parts are made from a PPE or Polyphenylene Ether.

     
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