PT.KENCANA HIJAU BINALESTARI
Indonesia
240 Kg Drum
Gum Rosin WW Grade
Gum rosin is a natural resin derived from pine trees. It is obtained through a process called tapping, where the bark of living pine trees is cut to release the resinous sap. The sap is then collected and processed to produce gum rosin.
Gum rosin is typically in the form of brittle, transparent to translucent, amber-colored solid chunks or flakes. It has a distinctive pine-like scent and is composed mainly of resin acids, which are a mixture of organic compounds.
Gum rosin is a key ingredient in the formulation of adhesives and sealants. It provides tackiness and improves the adhesive properties of the products, enabling them to bond different materials together.
Gum rosin is utilized in the production of varnishes, lacquers, and paints. It acts as a film-forming agent and enhances the adhesion, gloss, and durability of the coatings.
Gum rosin is incorporated into printing inks, especially those used in flexographic and lithographic printing. It helps in improving the ink’s viscosity, adhesion, and drying characteristics.
| Variable | Unit | Test Result | Experiment Method | Standard |
|---|---|---|---|---|
| Color-Gardner method | # | 6.0 | LICO Standard | 6.0 – 6.7 |
| Softening point | °C | 79 | Ring and Ball | ≥ 79 |
| Insoluble impurities | % | 0.01 | SNI 7636 : 2011 | ≤ 0.02 |
| Ash content | % | 0.01 | SNI 7636 : 2011 | ≤ 0.02 |
| Volatile Content | % | 1.17 | SNI 7636 : 2011 | ≤ 2 |
| Acid value | mg KOH/g | 184.29 | SNI 7636 : 2011 | 160 – 190 |
| Saponification value | mg KOH/g | 195 | SNI 7636 : 2011 | 170 – 220 |
| Iodine value | # | 17 | SNI 7636 : 2011 | 5 – 25 |