Thats not the way I was trained to use HOK's wax and grease remover, KC20 is a wipe on and wipe off with a clean rag product.
I was assuming we were talking about it on a finished instrument. Not sure why you would silicone the bare wood.
Just keep in mind that waterbased systems still need safety precautions. Still wear a mask etc...
Just because its safer, doesn't make it safe or breathable.
I use a lot of Autoair automotive base coats and like them for quite a few things.
Look at the specs of whatever he's looking at, it will give a frequency range. As long as his instrument is in the specs it should be fine. I'm too tired and lazy to google the frequency range of a bass at this moment.
Biggest help you can have is buying a good iron, I'd get a Weller or Hako that you can turn up and down.
Racing rc cars we have to solder batteries all the time and they work way better for that, and its way tougher than soldering guitar pots.
You won't damage anything but because of the impedance mismatch you won't get a very good sound usually. Target has a very cheap usb to guitar cable that works okay, a preamp in the line may help or d.i. box, desktop mixer if you have one.
You can also look at a low dollar interface like the...
Start with a pretty clean area.
A majority of the dust and lint comes from the painter, so a cheap shoot suit, gloves, mask etc. not only helps protect you from the paint but also protects the paint from you. A lot of pro painters will mist down the floor in their booth before spraying to trap...