The Simple Green just isn't strong enough. I have great results using "Castrol Super Clean", purple jug (1 gal.), that I use for stripping die cast and plastic parts. Use it full strength, with an old toothbrush, and rinse it off when you are satisfied with the results. I would shy away from using the Dremel with wire brush, as it tends to leave scratches, especially if the part is plastic. The only time I use the wire brush and Dremel, is if the parts are die cast or metal, and would most likely be repainted, or even "blackened-Gun Blue".
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