We have always approached screen exposure with idea that you expose as long as possible without losing detail. We recently got the "Blackmax Ink System" which is a highly opaque black ink that is loaded into all 8 slots of our Epson. When you output your film, it pulls equally from all eight cartridges.
Our films with this system are crazy opaque, allowing us to expose for much, much longer without any loss of detail. My assumption is that we should go with it, expose longer, and have stronger screens as a result.
My question is- Are there any draw backs to super long exposures where no detail is lost? Can emulsion become too brittle?
We use a nice vacuum uv exposure unit. Our exposures used to be around 3 mins. (Varying for eom, mesh selection, and artwork) No washout issues, and no breakdown on longer runs. We had what I thought then were very opaque films. No problems with 55-60 line halftones.
With this system it seems we could expose for twice what we are used to without losing any detail.