Trelja; I want to thank you for your responses. Although I am not a chemist, I did get a minor in chemistry in college. I did not like the requirement of German for chem. majors and this was the rebellious 1960's, so of course I quit chem. Although there is no occidation occuring as yet, it is inevitable. The ozone in the atmosphere will see to that - as well as UV (a good reason to keep grills on). When you buy speakers as expensive as Aerial 10ts you want to keep them around for some time and in peak operating condition. It just seemed prudent to see if there was some way of maintaining the operating parameters of the speaker surrounds as long as possible. We audiophiles seem to obsess over things like jitter, green magic markers, pucks etc. that we forget that the suspension of a speaker is probably at least as important. Thaks again. [email protected]
