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Treating foam speaker surrounds

Does anyone know of a way to "treat" foam speaker surrounds to keep them from crumbling into dust ? While i know that all foam surrounds will decay over time, my prime concern right now are the woofers that i have mounted in the back deck of my car. Due to the extreme heat and sunlight beating down on them, i know that they won't last long in there. I am looking for "proven" methods as i don't want to do further damage or speed up the "rotting" process.

I've had two 8's and a 12" in there for about two years now and the 12" is starting to look "funky" in terms of discolouration but is still solid. Seeing that i have to remove the back window to replace them, i would like to be able to preserve these as long as possible. Any ideas or suggestions ? If you don't know for sure that what you mention is a valid approach, PLEASE state so in your post. I don't want to be anyone's "guinea pig" : ) Sean
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PS... I'm sure that others with older speakers ( home or car audio ) would LOVE to hear about something like this also.
sean

Showing 1 response by clueless

clueless
763 posts
 
Hi Sean:

Seems to me it's like spraying something on a rose to keep it blooming forever. Nice idea but maybe can't be done. You don't want to change the suspension of the cone either.

"An once of prevention is worth....." Kind of pedestrian and i'm sure you have thought about it but park in the shade whenever possible to avoid heat and crack the windows and cover the cones so no sunlight hits them. No reason to leave the surrounds exposed to sunlight.

Also, some things that might work great to preserve surrounds indoors or from heat might be terrible if sun (ultraviolet ect) is added to the mix. Might be a big difference what works well inside and what works under a rear window. Sunlight is murder.

I remain,
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