Ok here's the latest results. I'm mixed on these results as the timeframe went 48 hours. The soak went very well but the rag on the wrap dried out and caused the paint to dry. Also on the soak test (submerged in plastic bucket) I still needed to scrape some of the paint off with a plastic and wood scraper. I went to town on the piece that had the soaked rag on it with a metal putty knife (dull rounded edge) and some scotch brite pads. The putty knife did scratch the wrap and scotch brite dulled it. I do think in warmer weather the results would be much better. The shop gets into the 50's at night and has been pretty cold. I also think more hot water would help as well. As stated earlier you can't submerge the shell in solution so I'd have to call this one a failure. I will retry this when I can give round the clock attention to it. This red paint we determined is enamel and very thick and tough. Great for this test. At this point I really need to glue some of these to a old shell or wood surface and figure out a good way to keep it moist and in contact with the solvent. And try them again. There's always some hit and miss in science. :)
First pic the soaked piece on the left cleaned up and red paint sample piece on right.
Second pic is the piece that was wrapped in the rag that dried out.
Third pic a closer look you can see the scratches and dullness from the putty knife and scotch brite pad.
And advice or input would be welcome!!