Park Tool Supergrip Carbon and Alloy Assembly Compound creates a better grip between slippery surfaces, so you don't have to deal with seatposts, stems, or handlebars migrating during your ride. It also means that lower torque values are required which prevents crushing carbon or lightweight alloy bits. Please note that it's not for use on threaded surfaces or for bearing lubrication.Helps create a tighter grip between slippery surfacesIdeal for carbon, aluminum, and steel seatposts, handlebars, and stemsAssembly compound holds by using grip aided by small bits of hard silica