Homebrew PCBs

Correct, 1/2 Teaspoon Super Washing Soda (Sodium Carbonate) in 8oz
(1Cup) of warm water. I usually brush very lightly with a foam brush
while developing to keep the solution moving. If you use a decent ground
plane it should take 3 to 5 minutes. A board with no plane will take
longer, since there is more resist to strip.  You can over-develop the
board if you leave it in too long (or use too much soda), so plan on
practicing with a few sheets of resist before trying something
intricate.

When you're done etching the board (using whatever method you want),
just throw the board back in the solution for a few hours and the resist
should fall right off.
** I have not used any other type of resist than what I mentioned
earlier (from Digole), so I do not know if this works for other brands.
--- In Homebrew_PCBs@yahoogroups.com, "Terry"  wrote:
>
> I am thinking of giving this a try.  Could you clarify about the Arm &
Hammer Super Washing Soda mixture?  Is that 1/2tsp per 1 Cup of water?
>



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