The translucent PLAs you may want to try at a lower temp, say 170C, but that probably isn’t related to the sticking.
We print PLA onto PET and sometimes use ABS/acetone mix, but not always. PLA in general sticks way more than ABS. Perhaps your first layer isn’t low enough.
my best results with getting PLA to stick are on bare glass, cleaned with denatured alcohol, heated to 65c, first layer at 200c with moderate squish.
as an aside, I’ve found that cleaning the glass with alcohol too often degrades the adhesion for what ever reason. so I clean only when needed.
I tried trans blue one afternoon and did not like how it printed despite playing with the temp, plus the filament diameter varies more on that spool than any other.
I switched from the translucent blue PLA to black PLA and my adhesion problems have gone away.
I’m printing at 180C for the extruder and 70C for the bed.
I am seeing an issue now where the infill looks a little ‘ragged’ there are some holes here and there. It’s not as nice and consistent as the infill when using ABS. Any suggestions on what to tweak?
In slic3r under print settings -> advanced, there are extrusion width multipliers. Try bumping the infill multiplier to %150 or %200. That should clean up the infill a little. Material use will go up a little, but print time should be unchanged.
Some users have encountered flaking or delamination when removing parts when printing on bare glass. We recommend printing with either the stock PET surface, or with the new PEI print surface that some of our more advanced users are using with great success.