Homebrew PCBs

Hi, Group!

Wait-Wait-WAAAAIT!  Hold on a moment!  "Just get it on your skin or breath [sic] 
the vapors!"  WWHAT!?  I believe that you might have wanted to say, "Just DON'T 
get it on your skin or BREATHE the vapors!", right?  MEK, MethYL-Ethyl-Ketone, 
is VERY volatile, and absorbs easily through the skin, so these were 
well-intentioned words of warning - They just didn't quite come out right. 


And thank you for the information - the cautionary note is greatly appreciated!

Dave Garfield, who probably doesn't want to go near MEK after all that...  ;->




________________________________
From: Mike <mbushroe@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Fri, August 13, 2010 12:00:22 PM
Subject: [Homebrew_PCBs] Re: removing toner?

MEK stands for Meth-Ethyl-Ketone, and yes, I have seen something like an order 
of magnitude difference in how much of the green foil leaves the traces, and 
does not get re-deposited on the bare fiberglass elsewhere.

Available from McMaster-Carr
http://www.mcmaster.com/?orderview=new#fluorescent-ballasts/=8dz6aa
MSDS sheet for MEK
http://www.sciencelab.com/msds.php?msdsId=9927358

it is not expensive, $10 for a quart. Just get it on your skin or breath the 
vapors!

Mike


--- In Homebrew_PCBs@yahoogroups.com, Alessio Sangalli <alesan@...> wrote:
>
> On 08/11/2010 09:59 AM, Mike Bushroe wrote:
> 
> > I was not always able to get the green foil off well, even in a acetone
> > bath, so I stepped up the M.E.K. Toxic stuff, but effective.
> 
> Normally I've seen a trend like "the more toxic, the more effective", so 
> I am very interested in this. Can you tell me more about "MEK"?
> 
> bye
> as
>




------------------------------------

Be sure to visit the group home and check for new Links, Files, and Photos:
http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links




      

[Non-text portions of this message have been removed]