Re: [PPLetterpress] Re: Plate cracking
- From: "Gerald Lange" <bieler@...>
> He lives in San Diego, not far from the ocean. He talked to Gene Beckerand was told it
> was probably the humidity. But I live in Marina del Rey, a block from thethis
> ocean (which I haven't seen in years), and have never had a problem like
Yup--I lived in San Diego for 20 years. It's not bone-dry, but no one would
call it humid.
- I didn't read your response correctly. Not drying long enough. I dry
at 150 degress for twelve to fifteen minutes. I did not actually ask
him about this. How he dried and for how long. Probably should have.
I've not had to revive a plate, so the idea of the polymer matrix
absorbing humidity is something I've not had experience with (re
Elias's comment). Makes sense though.
--- In PPLetterpress@yahoogroups.com, "Gerald Lange" <bieler@w...> wrote:
> He lives in San Diego, not far from the ocean. He talked to Gene
Becker and was told it was probably the humidity. But I live in Marina
del Rey, a block from the
> ocean (which I haven't seen in years), and have never had a problem
like this. I would have thought aridity as well. Perhaps a combination
of too long exposure, too long drying, etc, as Elias suggested.
> --- In PPLetterpress@yahoogroups.com, thronobulx@a... wrote:
> > Where does he live?
> > My plates crack like hell in the winter when the conditions in the
> shop are
> > most arid. In the summer when the humidity is very high there is
> almost no
> > cracking.
> > Its one of the trade-offs of poylmer.
> > Most likely the gent is not drying his plates long enough before post
> > exposing. Unless he is using the solar method, which I know
> > JS