I’ve seen this on older platters, and it’s often oxidation or residue from old mats/cleaners. First, try a mild solution of isopropyl alcohol (70%) with distilled water and a microfiber cloth—gentle, circular motions. If it’s aluminum, avoid anything abrasive; for glass, a non-ammonia glass cleaner works well. Stubborn spots may need a plastic-safe polish like Novus 1. After cleaning, let it fully dry before use. Then, spin a favorite side—maybe after a quick Run 3 setup check.
I’ve seen this on older platters, and it’s often oxidation or residue from old mats/cleaners. First, try a mild solution of isopropyl alcohol (70%) with distilled water and a microfiber cloth—gentle, circular motions. If it’s aluminum, avoid anything abrasive; for glass, a non-ammonia glass cleaner works well. Stubborn spots may need a plastic-safe polish like Novus 1. After cleaning, let it fully dry before use. Then, spin a favorite side—maybe after a quick Run 3 setup check.