Hi. Iv come across some factory finished dark stained laquered interior doors and frames that need freshening up. To be honest iv no idea what to do with them. They have the odd scuff and knock here and there but apart from that are in pretty good condition. Im guessing I need to use some kind of wax or something that goes on with a cloth, iv not idea how to prep them, dont want to wreck them, can someone please help. thanks.