There are several ways to maintain and clean acrylic trays. The general rule of thumb is never using an abrasive cleaner on acrylic such as glass cleaners or detergents that contain ammonia. At shopPOPdisplays we carry an assortment of cleaners by Novus that are specially made to clean acrylic products like acrylic trays. For a lustrous shine that's resistant to fogging, repels dust, and eliminates static, we recommend Novus #1. Novus #2 can be used to remove fine scratches, haziness, and abrasions. For those looking to remove heavier scratches and abrasions from acrylic trays, we recommend using Novus #3. These acrylic cleaners are ideal for any level of cleaning acrylic trays. Alternatively, if you are looking to simply remove fingerprints and mild debris, you can use mild dish detergent, warm water, and a microfiber cloth on acrylic trays.