Etching at Home

[smashedProton]

Gk, that's beautiful!  Excellent work.  A+

[GK]

Gk, that's beautiful!  Excellent work.  A+

Thanks!

If you are trying to measure current and have high voltages, watch out for leakage.

According to the datasheet for the Electrolube CPL, the insulation resistance is 1 x 10¹² ohms/cm, though I guess the real figure would depend on how thickly you layer it on.

http://www.farnell.com/datasheets/392349.pdf

There are more expensive coatings, such as the Electrolube HPA:

http://www.farnell.com/datasheets/316960.pdf

..... which has a quoted insulation resistance of 1 X 10¹⁴ ohms/cm, but the cheaper stuff is quite fine for most applications.
It's anyones guess as to what's in the can from Jaycar though.

[nukie]

Something else you can use to keep the copper from tarnishing is a permanent marker, but I don't use the black sharpee brand ones. I use some colored markers that are sold cheap in packs of 6 colors. The colors are sort of useful because you can use the different colors to color code parts of the board by their function. The ink burns off when the trace is heated so no problem to remove.

Anything wrong with solder-through conformable coating?

That's professional looking board. Does the coating gives off dangerous fumes?

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[GK]

From the datasheet:

"Can be soldered through without fear of highly toxic gases being produced (contains no isocyanates)."

[nukie]

From the datasheet:

"Can be soldered through without fear of highly toxic gases being produced (contains no isocyanates)."

Im going to keep that in my notes very useful thanks. Does the solder flow well with the coating melt mix?

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[GK]

Yeah, it's fine. So long as you don't layer on five coats you'd hardly notice it was there.