I bought some new decals for my Marinoni. The old ones are on top of the paint, and they've started to peel off in places. (It's almost 15 years old, so if the new ones last as long I'll be happy). Before I go to the trouble of putting them on, I wondered if anyone had some advice for protecting them once they are on there? I'd like to wax the frame to protect it anyway, but can I use liquid or microcrystalline wax over decals without scratching them?