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Re: OT: Garbage rubber from communist China

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Date: Thu, 17 Feb 2022 19:40:27 -0800 (PST)
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Subject: Re: OT: Garbage rubber from communist China
From: bill.slo...@ieee.org (Anthony William Sloman)
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by: Anthony William Slom - Fri, 18 Feb 2022 03:40 UTC

On Friday, February 18, 2022 at 1:29:15 PM UTC+11, John Doe wrote:
> https://support.oculus.com/articles/fix-a-problem/troubleshoot-headsets-and-accessories/facial-interface-notice-quest-2
>
> I had a serious problem with some Chinese made headphones, apparently
> caused by the rubber padding. It SUCKED.
>
> I'm cautious about that nowadays. If the material is pressed against my
> skin for extended periods of time, it will be from a well-known brand name
> manufacturer. That's no guarantee, but I'll do what I can do.
>
> I didn't need anybody else's experience, but here's what appears to be a
> documented example...

It probably wasn't rubber - polymerised isoprene.

https://en.wikipedia.org/wiki/Isoprene

As cheaper substitute is poly-urethane foam

https://en.wikipedia.org/wiki/Spray_foam

"Spray foam is a chemical product created by two materials, isocyanate and polyol resin".

Residual isocyanate can present a problem.

--
Bill Sloman, Sydney

Bus error -- driver executed.

tech / sci.electronics.design / Re: OT: Garbage rubber from communist China

Subject	Author
Re: OT: Garbage rubber from communist China	Anthony William Sloman