[Homebrew_PCBs] EDDING 404 ETCH TEST WORKS GREAT

 

I don't know who recommended EDDING 404 markers but I must say thank you for the suggestion.
The EDDING 404 most definitely can draw SOIC pads and do toner transfer repairs.

So I would conclude that EDDING 404 is by far my first choice for an acid resist pen now.


I always grab some stray pens..and this time a crayon... to check for acid resistance.
BIC INTENSITY FINE 
and
LA PEN
both just washed right off the copper.

Crayon barely worked.... and crudded up the acid bath.


after toner transfer:
http://www.learnmorsecode.com/pic/line/IMG_5153.JPG


after etch:
http://www.learnmorsecode.com/pic/line/IMG_5154.JPG


shiny copper traces:
http://www.learnmorsecode.com/pic/line/IMG_5156a.JPG


http://www.learnmorsecode.com/pic/line/index.html

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Posted by: Rob <roomberg@ptd.net>

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