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In Reply to: RE: vintage speaker repair - advice solicited posted by Alpha Al on March 07, 2016 at 04:35:07
Got some acetone from the garage last night and gave it a try - it melts the black speaker lead glue quite easily, I let it soak into the glue around the felt dust cap of the oaktron and it popped right off. It wouldn't touch the glue that attaches the cone or spider though. In this case the speaker just had a loose spider so I shimmed the voice coil with paper and glued the spider with some sewing glue borrowed from my better half. Obviously a more valuable speaker is going to need a purpose chosen adhesive but I wanted to figure out a way to apply it.
I also tried a tiny bit of "goo gone" on the rim of the cone, and that glue stayed hard. Probably a bad idea anyway since goo gone is petroleum based. I will give alcohol a try next and also see if I can get my hands on some MEK, both are solvents I read are used in speaker repair.
I think my permoflux speaker is going to be harder to repair, I can't find an obvious source of the buzz and am almost certain it is a loose voice coil - which means a better solvent is required.
Follow Ups:
Toluene works on some of the old type surround doping and also seems to work on silicone adhesives and sealants.
Use outside or in VERY well ventillated areas. It will get you higher than a kite and can cause organ damage.
Organ damage? Higher than a kite?
Hmmm thanks for the warning, was thinking about performance as a solvent and not health and safety, definitely don't want to trade damaged speakers for damaged organs! will read the msds and see if this is for me... Maybe best to do outdoors on the patio while wearing a mask ?
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