Daystate Panther MK4

I have some photographic monolights with that same black soft touch coating. I left them sitting in the garage for a couple years and the coating got very sticky. I used some paint thinner solvent on a rag to wipe them off and it worked great. It didn't harm the coating at all, but I can't guarantee your results. Anything you try should first be tested on a small spot that doesn't show.