if you are like me and live in a place where they do not sell CSC(i have to order it), just go to the local hardware. They sell Engine Degreasers,which what CSC is.there is a ED like CSC, it's brand is turtlewax.comes in even the same color. just dip it in.
i buy an engine degreaser called STP(Spray can). i've also tried Castite. i just place the model inside a container where it can "dip" it in the degreaser.
Just remember to protect yourself ..gloves,mask,goggles..etc
Hope this helps! Happy modeling