Robin Whittle wrote:
> This means it will creep
> (become thinner) if pressed unevenly.
>
Yes, I though that the 5mm core, and rolling it up gently "looked ok".
But I think it must have been too small a diameter to be stored that
way for a period of time, my feeling is that it needs to be in a fairly
"natural" curl.
> that side. Pulling the hard protective film off the copper before
> exposure will make the film less sensitive or totally insensitive to light.
>
Actually my experience, if you do happen to pull off the top layer
before exposure, it still exposes fine. I imagine there is a time
factor, not an instant thing.