Semi-permanent coating material especially developed for slides and valves of brass instruments, Heyday's slide makes common lubricants unnecessary on ideal conditions.- The slides or valves to be treated must be cleaned thoroughly and degreased (we recommend HEYDAY S Preclean).- Now you only need to spray a thin and even layer of HEYDAY S slide onto the inner stockings or the valve. Finally, let harden for one hour.- Now simply spray water functioning as lubricant onto the relevant parts of your instrument as usually- Common lubricants can be used additionally, but usually they are no longer necessary