I'm shocked awed and amazed no one has mentioned this yet, BUT...here goes.
CA glue de-bonder. No sanding needed period. Resin does not craze like styrene. So either formula of de-bonder will work. Personally I prefer Great Plains CA and de-bonder.
It's the same stuff that you get at Hobby Lobby. Hobby Lobby discontinued the de-bonder, however they do still carry the glue under a different brand name. So you need to find the Great Plains de-bonder if you want the good stuff.
Hobby Town and other hobby shops have a different type, of CA and de-bonder but it's simply not as good. Compare the 2 and you'll see the difference. (The Hobby Town type WILL craze styrene, like mad, so you have been forewarned.)
To use it, simply squirt some on a paper towel, and wipe until excess CA is gone. No sanding needed.
Try it you'll see.