The easiest way ive found to get layers of pain off metal minatures.

Supplies

Acetone
Glass Jar
Toothbrush and Tweezers

Step 1:

I found this on ebay, an old out of print Necron lord.

This was fairly cheap because of how much paint had been applied to it.

Step 2:

The idea is pretty stright forward, just use a glass jar and some acetone and let it sit there for a few minutes for the acetone to get to work.

Make sure its a glass jar and an all metal minature or else they will desolve too.

Acetone is also something you will want to use in a ventelated area, for me I work outside the house and in the garage with the doors open.

Step 3:

Once you see the paint flaking off and the glue release its hold if its a minature of multiplue parts, you can then take it out and give it a scrub. Repeat if needed, I had to let it soak a few times since this was quite a large ammount of paint.

Step 4:

Once i had most of the paint off using a brush or tweezers to get the harder to each places I left it to dry on a paper towel and its ready to be reassembed and repainted.