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Date: | Thu, 24 Jan 2008 15:44:35 -0800 |
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If it worked on an Anglia, it would probably de-coke hell...
Rudy Sedlak
John Burke <[log in to unmask]> wrote: Well it used to work to de-coke my old Ford anglia cylinder heads - sodium
hydroxide solution as I recall.....
John
John Burke
(408) 515 4992
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of R Sedlak
Sent: Thursday, January 24, 2008 2:26 PM
To: [log in to unmask]
Subject: Re: [TN] laser carbon residue
Jim: Is cutting done before or after soldermask application? It there Tin
metal on board?
If the cutting is done before soldermask, and if there is no exposed Tin, I
would suggest something strongly alkaline.
Rudy Sedlak
RD Chemical Company
Jim Henderson wrote: All,
We do quite a bit of laser cutting here that leaves a light carbon residue
on the edges of the board and holes. Right now we are cleaning it off with
a cloth and alcohol at final inspection. Is this common practice or does
anyone know a better way? Our laser is UV powered if that helps any.
Thanks in advance for any help.
Jim Henderson
Colonial Circuits, Inc.
800-578-9602 ext 118
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