Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

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Toppscore
Posts: 288
Joined: Wed Aug 29, 2012 2:02 pm
Location: California

Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

Post by Toppscore »

Hi. Any solutions to cleaning out this gray foam crud?

My two MXR Micro Amps are from approximately 1981.
Each Micro Amp has both the 9-Volt battery compartment
and the external side-port for an external power adapter
(one generation after the "battery-only" MXR Micro Amps).

Both Micro Amps work great! Just want to get rid
of the gray foam crud before anything happens.


What do you do?

***Heard this happens to all products with foam padding.
Fan of Fender Trainwreck Dumble
Bear
Posts: 333
Joined: Tue Mar 29, 2005 4:38 am

Re: Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

Post by Bear »

All I know is to yank the foam early and often. I've had some disintegrations in a rack compressor and an EV mic, too. The downside on the mic was needing to put a new sleeve in and wonder if I'll be any better off on that in 25 years.

Happy to hear any cleanup tips.
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Baxtercat
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Re: Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

Post by Baxtercat »

That stuff has turned to glue in several of my items...cassettes, speakers, etc.
Guitar Bob
TUBEDUDE
Posts: 1864
Joined: Thu Jan 04, 2007 5:23 pm
Location: Mastersville

Re: Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

Post by TUBEDUDE »

I repaired two old Moog synths a few years ago. They were from the early seventies. I didn't make near enough on that job to clean up the mess that resulted. I still have some of it in my carpet. That foam turned into black glue with the slightest touch. That's why i refuse to work on keyboards anymore.
Toppscore
Posts: 288
Joined: Wed Aug 29, 2012 2:02 pm
Location: California

Re: Vintage MXR Micro Amp ATTACKED by Disintegrating Gray Foam!!

Post by Toppscore »

TUBEDUDE wrote:I repaired two old Moog synths a few years ago. They were from the early seventies. I didn't make near enough on that job to clean up the mess that resulted. I still have some of it in my carpet. That foam turned into black glue with the slightest touch. That's why i refuse to work on keyboards anymore.

Crap. I'm looking at a 1978 Roland 84-Keyboard
that I pulled out of storage since 1982.
Am praying it will play. Will let you know.

By the way. I cleaned out the two MXR Micro Amps
of the glue-like gray foam. I discovered EVERYONE
has the same issue. What a crappy mess that stuff is.

Have them both on EBay with plenty of before/after photos,
lots of pictures and lots of page views. Apparently my
1981 MXR Micro Amp is pretty rare? Who woulda thunk?

Sold my Boss DM-2 Analog Delay this morning for $415!!!

Toppscore :)
Fan of Fender Trainwreck Dumble
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