Park Tool Supergrip Carbon/Alloy Assembly CompoundThe Supergrip Carbon Assembly Compound helps create a tighter grip between two slippery surfaces, this means you don't have to apply as much torque to the bolts to get a non slip fitment, this greatly reduces your risk of damaging parts by over tightening. Can be used on carbon, aluminium, and steel.Features: 4 oz. (113 g) tube Easy applicator spout Ideal for carbon, aluminium, and steel seatposts, handlebars, and stemsNOTE: 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.Buy Park Tool Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.