Metal vs Polymer plates? Two-sided printing…
The big question… which is better?
I have noticed there is still some decent bruising when printing two-sided cards on my C&P 10x15 when using polymer. I can reduce the show-through by limiting the impression depth, but I am curious if using a metal (magnesium, copper) plates would work better in this application?
Any other ideas / tips / tricks on how to work around this issue?
Jesse
No Plan Press
Use hard packing such as mylar instead of paper or press board. It will create deep impression in the paper without bruising the back (up to a point). Not sure if the plates make much difference in this regard.
I agree with Liber’s answer, I use copper on everything, btw. I still use pressboard (from Bar-Plate) under the tympan. I have used film under the tympan, but the pressboard has worked really well, turning it over after several runs. My packing is usually tympan, then a sheet of 70# coated book, pressboard, and 2-4 sheets coated book underneath as needed.
My solution to show-through has been to print 2 separate sheets, then glue them together, back to back. That way I can use as much impression as I need to. Most users here seem to prefer the potdevin, I just use ATG 2 sided tape which works well with the thicker covers we use.
This is great advice, thank you!