The pthalates produce an oily film. So particulates probably adhere to it.
May make removing other dust particles more difficult, but I am only guessing.
I would guess the other way round , new cars have more fresh plastisizer in the
plastic. It has
not been "dried out" by the sun yet. There is a move away from pthalates to
other plasticizers
because DHP is thought to be carcinogenic. But it works well and is very cheap
so still widely
used. Others probably also evaporate and depost too.
Tim H.
--- Wayne S <om4t@xxxxxxxx> wrote:
> At 11:19 AM 4/14/2006, you wrote:
> >Car interiors deposit a film of DHP ("Thalates") plasticizer from the PVC
> >fittings and seats
> >especially on hot days. If you do blood tests you can detect DHP in most
> >people's blood who
> live
> >car centric societies.
> >
> >Tim Hughes
>
> Thanks Tim, Any idea what the particulate matter would look like?
> I know PVC is very static, at least the dust after cutting PVC pipe
> clings to everything. Would an older car be more likely to contaminate?
>
> For now, I'm going to clean the sensor, keep the bag out of the
> hot car as much as possible, and see if I can determine anything
> definitive.
>
> WayneS - arsasizing
>
>
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