Do you "treat" your speakers rubber surrounds?


Hello!

I was wondering if anyone out there puts any products on their speakers rubber surrounds? I notice that mine get dusty from time to time under the grills, so I do dust them. I am wondering if perhaps they could benefit from having some type of "moistening" product put on them.

Thanks for your input,
Ben
bearotti
After moving to California and its associated dry climate, I have found many dry-rotted surrounds. My Sunfire subwoofer manual recommends using mink oil on the surrounds. I treated all my woofers with the mink oil and it seems to work well so far.
I've seen too many speakers with rubber surrounds from the 70's that look and work fine, maybe better.
Armour-All deadened the sound of a low value test speaker once. It had foam rubber surrounds, but still the effect was large and not good. I would stay away from anything with silicon.