Gettinf CA off is a perennial problem for me as an aeromodeller. Acetone is one of only tow chemicals that relaibly do it. Its available as a celluuose thinner BUT teh trouble is there are many pther materials used as such, and they don't work. It HAS to be acetone.
Drag racing cars. Its a fuel additive that has not only a certain calorific value, but the ability to release a surplus of oxygen. Cars that can't breathe at high RPM gain huge amounts of horsepower if this stuff is used as part of a fuel mix. I woudl imagine its available from some of teh go-fatser shops that actually sell real thuings like racing cams etc rather thanstripes and aloloy wheels. Try a specialist ar tine up magazione.
Sounds not unlike
Both acetone and niromethane are powerful solvents. However polythene and nylon at least are safe in acetone, and nitro. It comes in plastic bottles.