When I have run in to bleeding problems and plastics sensitive to solvents or where I have done bodywork I always use Barcoat Isolator or BIN Sealer. I use auto paints which have hot solvents so I need a reliable effective barrier. http://www.u-pol.co.uk/documents/datasheets/tds/BAR-TDS-EN.pdf http://www.zinsseruk.com/product/b-i-n/ I have found both to be equally effective with the BIN being white and the Barcoat beige in colour. Both of these are shellac based and I use methylated spirits to wash up my airbrush.
I soaked some Replicas & Miniatures resin in isopropyl alcohol some time back to strip the paint and the parts were like rubber when I removed them. Over a period of time though they did eventually re harden to their original state.
You have to admire their work ethic when they know they will be deluged with orders and yet will be retiring shortly. It would be so much easier for them to simply call it a day now and cruise in to a well deserved retirement.
I've had mine here for awhile now. The only issue I can see is that while the tyres are perfectly moulded with excellent tread pattern they are very stiff. To get them on the rims I have had to soak them in hot water to make them pliable. I have read on other forums where Belkits earlier releases are having issues with the tires eating the rims after a period of time.
I had a 1/12 Tamiya Porsche arrive here and the roof was a bit pushed down due to poor packaging and the postal service putting too much weight on top of it I was gutted at the time but probably a year or so later I opened the box and the body shell looked perfect. I can only guess that the plastic had a memory.