specialkjamie

I have been in the leathercraft hobby for about 2 1/2 years now, and just recently I have been having trouble with my items and the finish rubbing off. I have been using fiebing's professional oil dye black. Usually putting a coat on, letting dry to the eye and putting a second coat on to even it out. I let it dry for at least 24, but usually 36 hours. Then I apply fiebing's acrylic resolene, usually doing between 2 and 3 coats of that. I have applied it with a brush, sponge, or even airbrush. I have been doing it this way for probably about a year, but just recently, every item I have done, the resolene finish will rub off very easily with just a finger. This presents a HUGE problem for me, as I have a lot of unhappy customers. Wondering if there's anything I'm missing from my process, or how others would go about the process. Thanks very much in advance for any input.