Mysterious Foam On Dash? Super Annoying

[Nick C]

Recently I have found little bits of foam like black sand on the dash and only the dash. Every now and then I find a big chunk like the size of a thumb.

I check the roof lining and everywhere around it and there is no sight of foam or how it can get there.

I happens when the car is off when I’m working, when I’m driving I don’t see anything falling.

Please help as it makes my car look dusty and dirty.

TIA

 

[mike_nofx]

Is it coming from the fan when set to the window demist setting? Maybe foam seal from the vents?

 

[dazzdodge]

Yes I’ve noticed the same with my Calais, it’s got me beat too

 

[mpower]

do you have a sun shield thingy, the edges deteriorate and will do this.

 

[VS_Pete]

do you have a sun shield thingy, the edges deteriorate and will do this.

Me too

 

[Fu Manchu]

The black foam that seals the ducting joints breaks down into something like that. I'm redoing all ours with a neoprene (similar to) tape.
It could also be from a sunshade as mentioned.

If it were orange, I'd say it was from the head lining.