we spray rubberized undercoat (get at any automotive or hardware store) on the entire inner area of our stands / cabinets, including the hinges, just take an exacto knife to the "working / moving" parts to break the seal and viola! This also helps to prevent any water damage from splashing onto the cabinet surface while doing maintenance, and if it ever happens, contain water leaking onto the floor underneath the stand. Also adds some "bite" for installing plastic coated wire baskets on the inside of the cabinet for storage, as well as mounting things like controllers, etc.
We also do this this to any canopies, entire inside surfaces.
Helps with heat retention, too!
