Lineco blue is our standard, but we revert back to the cheap black Kraft paper for budget jobs.
No, Kai, Lineco blue is a heavy-duty, virgin alpha cellulose paper with a smooth surface. It is very good to work with.
We seldom use ATG tape, because it is outrageously expensive and it makes a mess on the back of a frame. I have seen it fail, too. Instead, we use Dustcover Glue from Frame Specialties. But before that, we used ordinary frame glue, such as Maxim or CornerWeld.
When we must use a tape instead of glue for the dustcover, such as on plastic frames, we use 1/4" wide fillet tape from ASAP Tapes, which has a thin polyester ribbon and a very aggressive acrylic adhesive on both sides. It is better quality than most ATG tapes, it works better than ATG tape, and it costs less.