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How to clean mold on old k33 edges


Welborne

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Hi guys, seriously need some help herez recently picked up a pair of old Cornwall and the woofer accordion surround has some whitish stuff on them and they look like mold to me. I have tried to get them off with cotton bugs but fail. I dont want to damage these drivers by wrong method.

Can anyone tell me what is the best way?

Cheers,

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I use white vinegar for a lot of stuff. Not so good on black mildew but better on white. The Lowes find may be a good choice.

Like your proceed with caution attitude. Sounds like some sunshine or serious sunlamp light used cautiously may help with what is sounding like damp environment where speakers are kept.

If possible, you could try a small test spot on speaker/grille with Lowes find.  Maybe someone has better answer.

Edited by billybob
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Like my friend Jimbo said - paintbrush or stiff toothbrush?  Once you've removed as much as possible, maybe dipping brush in bleach to kill off the nasties, let dry.  I have had very good luck refurbishing the look of cones without sacrificing flexibility and mass (mass very important), with SEM vinyl spray in satin black. If your K33 has the little vent screen in the center, put a coin on that to stop the spray. A couple of coats in different directions will give complete coverage with flexibly, light paint. It's used for vinyl tops on cars so maintains good flexibility and has never cracked on my decorator heresies that I dolled up in this fashion. 

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I don't know if this will work, because I don't know what compound was used on the accordion edges of Klipsch speakers of this type, but with Altecs people balance the goo, that resides there, and sometimes puddles in places, with acetone and the right stiffness brush. I think acetone would kill mold?

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As billybob said earlier, use vinegar. http://cleaningallstars.com/the-truth-about-mold-removal-bleach-vs-vinegar/ As Michael said, don't change the mass of the driver with ordinary paint. The plastic paint he is talking about is more like stain.

 

As many have said, soft toothbrush or paintbrush. If you get the saturated, make sure it is the in neutral position until it dries. If need be, put a soft towel under between the cone and frame until the surround gets dry. I bought a driver where the cone was pushed in too far because and stuck in a negative position. I wet the surround with plain Windex and let dry in the neutral position. It worked like a charm.

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