Ca debonder in the purist form for industrial use is 100% nitromethane. Just ask for a MSDS sheet, Those for model use are mostly nitro cut with acetone, not so good IMHO.

I routinely remove Ca on monokote and painted surfaces very carefully using the Golden West Debonder brand found at woodworking stores.

ie. http://woodcraft.com/family.aspx?fam...e=details#tabs