Homebrew_PCBs

> Just wondering how dark the handling space should be, when preparing a
> fresh UV PCB after removing the protective film.
>
> I try to ensure that no light whatsoever reaches the board until the UV
> box is switched on. What can you realistically get away with, in your
> experience?

On Sep 2, 2014, at 5:08 PM, DJ Delorie dj@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:

>
> I usually just unscrew the one bulb over the bench and the remaining
> light in the basement doesn't seem to affect it significantly.
>
>

> However, if you have one of those full-spectrum or daylight lamps
> beware.

>
>> However, if you have one of those full-spectrum or daylight lamps
>> beware.
>
>Yeah, all my basement lights are CF "daylight" bulbs. Dunno if they're
>full spectrum, but they're not the usual yellow-y lights.

>>Yeah, all my basement lights are CF "daylight" bulbs. Dunno if they're
>>full spectrum, but they're not the usual yellow-y lights.
>
> Don't use them then,

>"Harvey White madyn@... [Homebrew_PCBs]"
><Homebrew_PCBs@yahoogroups.com> writes:
>>>Yeah, all my basement lights are CF "daylight" bulbs. Dunno if they're
>>>full spectrum, but they're not the usual yellow-y lights.
>>
>> Don't use them then,
>
>Thanks, but I'll keep using them. Most of the basement has another
>purpose that's best served by daylight bulbs. Like I said, I remove the
>one at the UV area when I'm doing UV, and I haven't had any problems.

> OK, slight misunderstanding here.... "don't use them for the
> photoresist".
>
> Darkrooms, for instance, have a safelight lighting system and a
> regular lighting system for tank developing, setting up trays, etc.