No, I bake them for 1 hour at 100C. No smell. Hard as a rock.
I'll measure the oven next time though to be sure.
--- In Homebrew_PCBs@yahoogroups.com, "jcarlosmor" <jcarlosmor@...> wrote:
>
> --- In Homebrew_PCBs@yahoogroups.com, "fredbutz" <fredbutz@> wrote:
> >
> > I'm using the Solder Mask UV Film from Think and Tinker -- with outstanding results. I've never had a problem. No smell, nothing.
> > I simply laminate it, expose it for 50 seconds using a image made on a laser printer with clear acetate. Develop it in Washing Soda. Expose it again for 15 mins, then bake it for an hour in a toaster over.
> >
> > Hard as a rock.
> >
> > The only issue I've had is trying to find something that sticks to it, so I can stencil the labels.
> >
>
> I understand that nothing smell when you laminate the PCB, but are you sure that nothing smell when the PCB is baked? I think that you toaster oven is functioning at a temperature very lower than expected.
>
> I have used Think and Tinker soldermask too. Vacrel soldermasks smell horrible above 60 degress centigrade that is the point when they start to react to heat. You cannot tolerate the smells for more than 3 seconds as they are very aggresive, and severe irritation occurs.
>
> http://www2.dupont.com/Imaging_Materials/en_US/assets/downloads/tech_bulletins/tb0054.pdf
>