We’ve discussed in the past that PH neutral/acid free tapes are the best for console labeling. They are the best way to insure that no damage is done to the finish of a piece of expensive sound or lighting equipment when the label tape is left in place for a long time.
With the recent popularity of console (artist) tape in colors, users need to know that only the white version of this product is acid free.
Pastel and neon colors are great for high visibility, but should be removed as soon as the show is over.