Volkan Sahin wrote:
>
> It seems peroxy-sulfuric etcher won't etch tin etch resist and it is
> possible to obtain stabilizer from think&tinker in low volume.
I don't know why Stefan Trethan says that, i also said lots of very
wrong things in here already, but is really bad when we induce people in
mistake.
The peroxy-sulfuric will etch tin without additives. The stabilizer is
for the 35% - 50% hydrogen peroxide don't decompose in explosion when
you put a copper board in there.
I also wish to use a sulfuric based etchant but not like this.
Did you read the patents i mentioned?