I'm in marching band and we practice outside where its hot. when you're hot you sweat, normally this isn't bad but i'm not sure why but when i get sweat on my trombone and let it stay there very long it starts to corrode the lacqure off my horn, and of course i don't want a dull, not shiny horn, plus it changes the sound, so i really would appreciate suggestions. i've already tried wearing gloves and i just sweated through them. i can clean the horn right after practice and get it off but slowly it's wearing off the "shiny" of where i hold the trombone. i'm thinking about getting a leather wrap for where you hold it but i'm afraid i would ruin it quickly because of the sweat and they're about 30 dollars