... new Iron Drums of 225kgs net of each, Gum Rosin ww grade, resin Used in paper, ink, rubber, paints ... printing ink5) Easily softened and oxidized6) In the oil paint industry, the carboxylation reaction of resin acid ... , resin acid is changed into disproportionate rosin, polymerized rosin, hydrogenated rosin, for further use by its double ... , chewing gum and other chemical industries WW Grade Gum Rosin