I had to do some googling to look up what an acrylic dye is. "What is acrylic leather dye? Fiebing's Acrylic Dye is a long lasting, strongly covering leather paint for redyeing already dyed leathers. It allows you to dye dark leathers a lighter shade. It can also be used for painting patterns on smooth leather. I think that since its closer to a paint, its sitting more on the surface of the leather which is why a resist might have stronger results, than when you are using oil based dyes..