... price Product Name: Gum Rosin WW GradeType:Synthetic Fibers, Synthetic Resin and Pla...Grade:X, WW, WG, N, M,KSpecification ... % ), max0.020.030.04Usage: It is used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins ... use7) In the producing of synthetic rubber and printing ink, resin acid is changed into disproportionate rosin, polymerized rosin, hydrogenated ...