Gum Rosin / refined rosin >>> Gum rosin / Refined Gum Rosin Gum Rosin Product Introduction / refined rosin is a natural resin, mainly composed of a variety of resin acids, soluble in various solvents, with special chemical activity. Is an important raw material in paper, paints, inks, rubber, soap, electronic, edible ester gum, rosin ester resins and the like industries. Gum rosin or refined gum rosin is a kind of natural resin, mainly composed of various kinds of resin acids;. It can be dissolved easily in many organic solvents, and has special chemical activity So it is an important raw material for the production of paper , coatings, inks, rubber, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc. Packaging Package 1. Bottled: galvanized iron barrel, net weight 225 kg / barrel Drum: galvanized iron drum, 225kgs net each drum 2 . bags: plastic bags or brown paper bag, net weight 25 kg / bag Kraft paper bag or plastic intertexture bag, 25kgs net each bag Grade level quality indicators Specifications Gumrosin gum rosin WW grade X a WG two transparent solid Transparent Solid Appearance Appearance Color yellowish color slightly yellow yellow yellow Yellow paleyellow Softening Point (France) ℃ .≥Softoningpoint. (by balland ringmethod), min 76 76 75 acid number (mgKOFVg), ≥AcidNo. (mgKOH / g), min 166 166 165 ethanol-insoluble component (%) ≤Alcohol lnsoluble material (%) max 0.03 0.03 0.04 unsaponifiable matter content (%) ≤Unsaponifiable materal (%) max 5 5 5 Ash Content (%) ≤Ash (%) max 0.02 0.03 0.04 Remarks : Remark above technical specifications conform (GB / t 8145-2003) People's Republic of China national standards. The technical specification of gum rosin is the national standard of People's Republic of China (GB / T 8145-2003).