Renesongs wrote:
Don't know what Isopropyl alcohol is. I use Methol alcohol, (squatter brandy), to strip finger grunge off my fretboard though.
Isopropyl (rubbing) alcohol is a quick evaporating alcohol that draws out and absorbs moisture and oils. It's also sold as contact cleaner or switch cleaner. I use it to clean rosewood and pao ferro fingerboards. Alcohol'll strip out the natural water and oils from these boards pretty quickly though, leaving them too dry and prone to shrinking and cracking, fret sprout and other associated problems. So if you use it, you'd better replace the moisture with a good oil after using.
Lemon "oil" doesn't contain any oils, but is mostly petroleum distillate for cleaning, with a little lemon scent - this is to stop people from overoiling their fingerboards. It doesn't strip out the natural oils, but neither does it replace them. To replace the oil, you need a good formulation of mineral oils like Fret Doctor from www.beafifer.com . If you're using the real oils, applying once a year is enough.
I use standard spray on polish (Mr Min), which probably contains silicone and Isopropyl alcohol, to clean and polish my guitars. Could our resident luthier please enlighten me on the damage I may be causing to my instruments so that I can desist immediately.
Most modern polishes which are used for plastics as well as wood will have silicon oil. Silicon oil never dries and it tends to penetrate through screw holes and older cracked/crazed finishes. It gets everywhere. Once it's there, nothing works to remove it and it causes major problems with any repairwork that requires refinishing or glueing (including refrets), older, thinner or cracked finishes can start to lift too. Mr. Min and Pledge are bad, but the worst stuff is the stuff used for dashboards and fake leather (sometimes guitar cases ☹ ). Basically stay away from anything that has silicon in.
Remember, your primary method of cleaning should be a clean dry, lint free cloth and a little elbow grease. Use it regularly after playing and there's very little else you will have to do. When you need a bit more to get rid of some accumulated grunge or want to restore a dull finish, use a proper guitar polish. Only If you have years of grime to remove, do you use a solvent like naphtha to strip off the worst of it, and then follow up with a polish.