There are a number of industrial cleaners that are used to remove grease and other harmful compounds from electronic components. An effective cleaner and degreaser for electrical and electronic equipment is Lexite NF. Developed by Chemsearch, it is fast and has a clean evaporation. If used as directed it is noncorrosive and non-conductive. I have used it on many occasions when cleaning equipment and it has worked each time. There are others that I have tried, but as of the time of this writing, Lexite NF does the job.