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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 etc.
Specifications：
Grade | X | WW | WG |
Appearance | Transparent Solid | ||
Color,(Gardner Grade) max | 5 | 6 | 7 |
Softening Point,(R&B),°C, min | 76 | 75 | |
Acid Value,(mgKOH/g), min | 166 | 165 | |
Alcohol insoluble Substance,max | 0.03% | 0.03% | |
Unsaponifiable matter, (%) ,max | 5 | 5 | |
Ash, (%) ,max | 0.02 | 0.03 | |
Packaging：
(1) Drum: Galvanized iron drum, 225kgs net each.
(2) Kraft paper bag or plastic intertexture bag, 25kgs net each.
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