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
Somebody once shown me adding some kind of special heavy oily mix (almost like vaseline) to keep the rubber part moist (reduce physical wear and deterioration).

I suspect it’s more for physical maintenance than for sound, just like some vintage Mc owners rub oil on the chrome to protect the delicate silk screen (plus prevent rusting / pitting)

No idea on the former, but the later made perfect sense (got 2 x MC240 with perfect chrome from that seller, must agree on that)

Dynaudio, recommends Sonax for their woofers. First time I had heard of this my self. Around 1:50.  https://youtu.be/UF9Y34Hd9G8