The La Tromb T2 valve/piston oil enables valves to be as friction free and super fast as possible. I helps to keep the pistons extra clean with hardly no build up that lasts longer than most heavy petrolium based oils.
It is a fine light blueish oil, with extremely good lubrication qualities. Suitable for the valves of all brass instruments.
It works especially well for Monel and or Steel piston valves.