Combinations of edge coloring and certain other printing features may not work well together.
Edge coloring should not be combined with die cut pieces or letterpress printed cards which have bleed off.
Edge coloring will not work with embossed cards or with thermography.
Occasionally, in house duplexed papers will allow the edge coloring to wick onto the face and back of the cards.
Any in house duplexed paper, such as the 200# Superfine line of papers, should be tested for wicking, with the
understanding that the final card may not be able to edge color.