I did a search on this subject, but didnt' find anything. Around the on/off buttons on my silver equipment (mainly my Classe amps), a "brownish" residue has built up over time, most likely smudges of dirt/oil from my fingertips. Can someone recommend a cleaning solution and/or method for this? BTW, I'm asking here first before even trying something as simple as water and elbow grease. Thanks.
I've done that, except I presoked the face with bleech and then used and ultra high pressure (7239.434 PSI pressure) and tried that for 6 hours and 52 minutes. No prevail...not sure what to do with it now.