Homebrew PCBs

They do sell actual soldermask film which you can apply and
photoprocess much like this.

I don't know where you can get it, just wanted to make sure you know about it.

ST

On Thu, Dec 31, 2009 at 6:02 AM, DJ Delorie <dj@delorie.com> wrote:
>
> "Ben L" <bhleavi@...> writes:
>> oven but still I would think that all the resist would break down in
>> the heat of the oven.
>
> I've noticed the riston will bubble up if I overheat it with the hot
> air gun (all the more reason to use a known-temp laminator control :)
>
> It doesn't seem *that* bad though.  If you solder with the usual quick
> touch, and don't actually hit the film with the iron, it seems to stay
> put.  I don't think they'll survive the hotplate though.  I can try a
> scrap later.
>
> It does somewhat keep the solder in place, too.  And still looks
> pretty.  I liquid-tinned the boards before putting the film on, they
> all have a sort of silvery-blue theme.
>
>