Ultra-Mega Versatile Multi-Use Guitar Polish

Works well with frets, and I've used it to remove swirls on clear gloss nitro laquers. It doesn't cause any staining even though the paste is yellow, so no worries there. Im not sure about pickguards yet, I might amend this review if i can restore an old one to an acceptable standard. Though nitrocellulose is basically plastic so i believe it will work well, stay tuned!