Sheen /pledge /Armor all + co can be used on guitars IF YOU NEVER, EVER, have damage that requires woodworking over the entire guitar´s lifespan. Most people on this planet are not in a situation where they can plausibly make that claim....
Glue and finishes do not stick to silicone, and silicopne penetrates the wood. THis causes MASSIVE problems with future repairs. a 200$ headstock repair instantly becomes a 500-1000$ new neck, a refinish can quickley require the entire guitar to be rebuilt from teh ground up with new wood, et.al.
Bottom line: Quit being a cheapskate and buy a bottle of guitar polish, or pay dearly in the long run. For ****´s sake, I have more than enough guitars, keep them all polished and freshly strung, and still only need a new bottle every few years.....
I can´t believe this still has to be said on a weekly basis....