Westvaco Tallex Rosin acids, alcohols and hydrocarbons, fatty acid esters of sterols and lignin Westvaco Tackifier >> Rosin ADHESIVE Westvaco Tallex. Dark-bottoms product from tall oil fractionation, consisting of non-volatile rosin acids, high-molecular weight alcohols and hydrocarbons, fatty acid esters of sterols and lignin. Used in asphalt compounds, cement and adhesive binders where color is not critical. Product from tall oil fractionation, consisting of non-volatile rosin acids, high-molecular weight alcohols and hydrocarbons, fatty acid esters of sterols and lignin. Used in asphalt compounds, cement and adhesive binders where color is not critical.