[Boatanchors] MFP (was BC-342

[Richard Knoppow]

----- Original Message ----- 
From: "J. Forster" <jfor at quik.com>
To: <WA5CAB at cs.com>
Cc: <boatanchors at mailman.qth.net>; 
<boatanchors at theporch.com>
Sent: Wednesday, February 23, 2011 2:14 PM
Subject: Re: [Boatanchors] MFP (was BC-342


> It may well be that the MFP coating contains solids and a 
> solvent. After
> application, the solvent evaporates and the solids 
> polymerize. After
> polymerization, the material is no longer soluable in the 
> original
> solvent. In such cases, a far more aggressive solvent may 
> be needed to
> remove the set-up coating.
>
> Certainly modern epoxy paints are like that. You can thin 
> them and clean
> up with a common solvent (xylene, acetone, MEK) but once 
> set are nearly
> impossible to dissolve.
>
> FWIW,
>
> -John

     I think this is probably correct, it certainly behaves 
like an epoxy, nothing seems to dissolve it although, as I 
mentioned, long enough application of paint remover seems to 
work, but its _very_ slow. Heat will shrivel it so I've 
found that for soldering coated joints a fairly large iron 
works along with some scraping.
     The notes from Barry Ornitz forwarded by Bob Downs are 
also very interesing and thanks to him for the posting. 
Perhaps there is a secret ingredient: Nonremovium.

--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com