Helps create a tighter grip between two slippery surfaces. The Park Tool Sac 2 Supergrip Carbon and Alloy Assembly Compound is ideal for carbon, aluminum and steel seatposts, handlebars and stems.
*Note: All assembly compounds of this type hold by using grip aided by small bits of hard silicone. This silicone can cause cosmetic blemishing. Do not use SAC-2 on threaded parts or for bearing lubrication.