Park Tool's Super Grip Carbon and Alloy Assembly Compound (SAC-2) helps to create a tighter grip between two slippery surfaces. This compound is ideal for carbon, aluminum, and steel seatposts, handlebars and stems.
Park Tool notes that this compound is not for threaded surfaces. It is also NOT for bearing lubrication.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.