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Old 2nd March 2013, 08:05 PM   #1
1ajs is offline 1ajs  Canada
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Default how to remove polyurethane foam

hows one get polyurethane spray foam off the speaker cone? its stuck between the cone and the frame on one of 604e's i picked up yesterday?

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Old 2nd March 2013, 08:11 PM   #2
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Petrol should dissolve it, or benzine.
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Old 2nd March 2013, 08:12 PM   #3
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If not this will http://www.amazon.co.uk/Evo-Stik-191.../dp/B0001P03M4
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Old 2nd March 2013, 08:38 PM   #4
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txs will take that note and wait till the snows all melted so i can do it outside were theres proper ventalation
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Old 2nd March 2013, 08:54 PM   #5
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1ajs,
We were discussing this set of speakers in another thread. The solution is to use Methylene Chloride if you can get your hands on it. It is the only real solvent for polyurethane foam, I was a molder so I know that for a fact. The problem is that it can and will attack the glue joint between the surround and the cone. What I remember from the other thread is that this one particular speaker has something wrong with the voicecoil and you are more than likely going to have to rebuild the speaker and replace not only the surround but the voicecoil assembly. If you are real careful you will be able to save the cone and use it with a reconing kit. There are a number of companies selling the components that you need to do this or if that isn't something that you are comfortable with there are a bunch of companies that will do it for you. Those are the 604E Altec's I am looking at right. You are the one that got handed the problem but you should be able to salvage the pair and make yourself a nice set of monitors.

Steven
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Old 2nd March 2013, 09:13 PM   #6
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do you have a link to that thread i was hunting to see if there was one on here based on the convo i had with the seller who recomended this site and being very carefull about cleaning it off or sending it to great plains witch i have herd mentioned over at audio karma couple times.

at this point i am just seeing what my options are and costs so i can budget.
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Old 2nd March 2013, 10:06 PM   #7
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never mind found the thread
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Old 3rd March 2013, 02:49 PM   #8
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If you are getting repairs done and you wish to keep it in Canada, Vancouver Audio Speaker Clinic is a quality outfit.

They aren't fast and their customer service needs an update but the work is good.

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Old 3rd March 2013, 05:56 PM   #9
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Quote:
Originally Posted by Cal Weldon View Post
If you are getting repairs done and you wish to keep it in Canada, Vancouver Audio Speaker Clinic is a quality outfit.

They aren't fast and their customer service needs an update but the work is good.

Vancouver Audio Speaker Clinic - Welcome
see what happens but txs for putting them on my radar
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Old 3rd March 2013, 08:39 PM   #10
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i've started nipping away slowly to get the big chunks loose so it can be free of its prisson and have found some holes in the suround and tares hiden by the foam were its on the front side

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definatly have to send it off for repairs
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