On Nov 3, 2008, at 14:59 , keith_w wrote:
I took the back off my lovely MX, to find out when it was assembled
(Oct. "80) and noticed a lot of black deposits on the light-seal
ridges of the back, top and bottom.
Tbinking that was deteriorated foam seal stuff, I got out the
denatured (isopropyl) alcohol and a bunch of swabs.
Well, it dissolves whatever-it-is well, but it keeps coming off,
like tar!
I'm not down to the base metal of the back, but thought I'd stop and
ask what mild solvent is recommended.
This stuff acted like acetone or MEK! I checked the label three
times, to be sure!
The rest of the body is really perfect, but on the back there's some
black stuff coming off, like I was dissolving paint!
What say ye?
keith whaley
I'm not 100% sure, Keith, as I don't currently own an MX. But the LX
uses a glued in strip of rubber in that channel.
Might be you are trying to dissolve that! In which case I'm sorry.
Pentax learned from the Spotmatic, K1000 days. Of course, that never
stopped them from using the same foam that turned to goo in the mirror
box of all their cameras.
Joseph McAllister
Pentaxian
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