Detailed Product Description

gum rosin grade: x,ww,wg,n,m,k appearance: transparent solid color: slight yellow(grade x),pale yellow(grade ww),yellow(grade wg),deep yellow(grade n),yellow brown (grade m), yellow red (grade k). softening point (r&b) min: 76(grade x&ww),75(grade wg&n),74 (grade m&k). Acid value,mgkoh/g min: 166(grade X&WW),165(grade WG&N),164(gradeM&K) alcoholinsolublesubstance, max: 0.03(grade x&ww),0.03(grade wg&n),0.04(gradem&k) Unsaponifiablematter,max:5(grade x&ww),5(grade wg&n),6(grade m&k) ash max:0.02(grade x&ww),0.03(grade wg&n),0.04(gradem&k) special properties and uses: it is a kind of natural resin,mainly composed of various kinds of resin acids,it can be dissolved easily it many organic solvents,and has special chemical activity.So it is an important raw material for the manufacture of paper,cotating,inks ,rubber,soaps,electronic industrial products,food grade ester gum.rosin esterresin etc. packing: dum:net weight 225kgs each drum. in accordance with the national standards of People's Republic of China.