Materials used:
Fiebing's Resolene
Fiebing's dark brown leather dye
Acetone in the form of nail polish remover
Mink oil
Basically the problem I have comes from every time I need to apply resolene to my project; they keep turning yellow. They started off as white, lambskin loafers. I used acetone to deglaze, and after used a wool dauber to apply the dye. I let it sit overnight for 10+ hours, buffed it with mink oil to remove any sitting dye, and then proceeded to apply resolene as lightly as possible with a clean wool dauber. At first, it went on like it always does when applying it to a project. It would turn a bit yellow, but it never affected the underlying dye. Then after maybe 5 or so seconds, the dye underneath started turning a sick yellow/green color. This process has been repeated with the same results maybe 5+ times. I understand that airbrushing would give a better result, but even putting a drop of resolene on top of the shoe seems to pull out the dye and turn it yellow. So even if I avoid any "rubbing" motion on the leather, the resolene still reacts poorly. At one point I applied two coats of dye, and let sit for 24 hours. Still bad results.
Is this a leather problem or a product problem? I have since purchased Angelus sealant and will try that today, but I don't want to keep trying if the leather requires a different type of dye. Right now the dyes I am using are alcohol-based. Would labskin take oil based better?
I will try to take some pictures later today when I get home.
Edit: I added an example of a picture I had taken already of the resolene applied to a small part of the shoe
