Not critical. Acetone is really good, but always do it outside. It is really bad on brain cells. I use a lot of alcohol as it leaves the least film, but in this case, any of them will work except I would not want a water based ( SG) in there. I keep paint mineral spirits, lacquer thinner, alcohol and simple green in gallons on hand at all times. I keep a small can of Acetone in case I super glue my fingers together.
WD-40 is like duck tape. It does great things, but it is not without issue.