[Boatanchors] Fungecide for WW2 radios

[J. Forster]

If you Google a bit, this turns up:

MIL-V-173 - there are apparently two formulations. Basically it's a
phenol-formaldehyde (Bakelite-like) resin and Tung oil.

The solvent for the uncured stuff is:

Name:NAPHTHA, SOLVENT
CAS:8052-41-3
RTECS #:WJ8925000
= Wt:29.
OSHA PEL:2900 MG/M3;500 PPM
ACGIH TLV:525 MG/M3;100 PPM

Name:LIGHT AROMATIC SOLVENT NAPHTHA (PETROLEUM)
CAS:64742-95-6
RTECS #:WF3400000
= Wt:20.

Name:METHYL ETHYL KETOXIME
CAS:96-29-7
RTECS #:FL9275000
< Wt:.5

So you MIGHT TRY a mix of MEK and lighter fluid. No guarantees. It might
not work because the varnish may polymerize as it dries.

FWIW,

-John

===================


> Olaf,
>
> The coating is called Moisture and Fungus Proofing varnish.  or MFP for
> short.  The only two practical ways to remove it are mechanical (scraping)
> or
> thermal (soldering iron).  There is in fact an MFP solvent available, or
> was
> 10 or 15 years ago.  But the smallest put up that I was able to find was 5
> gallons.  And the price was something like $85/gallon.  I havent looked
> recently.
>
> Gunner
>
> In a message dated 12/20/2013 13:14:43 PM Central Standard Time,
> olaf at carolina.rr.com writes:
>> Boatanchor friends,
>>
>> Does anyone have experience in removing of the Fungicide which was used
>> to
>>
>> treat many of the  WW2 military radios ?? Is there anything which I can
>> BRUSH ON AND WIPE OFF  in the areas which I want to clean.---I am sure
>> it
>> will be pretty harsh stuff and should only be used on unpainted metal
>> surfaces,and not on any of the components or on
>> plastic.---And,btw,----what
>> was that ''greenish,yellowish'' stuff ???
>>
>> Any help out there ?? ---Tnx,Olaf.KF4TP.---
>
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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