The Ultra-Pure light bearing oil is perfect for maintaining all parts of your rotary instrument's mechanism. It is specifically designed to be the perfect viscosity for the rotating bearings on the top and bottom of rotary valves.
Thanks to the versatility of the oil, it is also excellent for piston valves that are worn or missing plating. The thicker oil will fill the gap between the piston and the casing. If you like your slides on your trumpet or cornet to slide quickly, then the Ultra-Pure light bearing oil can also be used as a replacement for slide grease.