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| Our success is on the basis of quality product. Through cooperating with institutes, we are working hard to improve the quality of abietic resin. Over long term application, our products now have been well-received by our customers. |
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Gum rosin
It is made of natural resin, its general formula is C20H30020. Because of its special properties, it can be used in paint, papermaking, soap, rubber, chemicals and medicine.
Technical index ：
Index name / grade |
top-grade |
First grade |
Second grade |
Third grade |
Fourth grade |
Fifth grade |
Color/Appearance |
slight yellow |
light yellow |
yellow |
dark yellow |
yellow brown |
yellow red |
| In accordance with the standard of rosin color grade glass color block |
| Softening point |
≥76 |
≥75 |
≥74 |
| Acid value MGKOH/g |
≤166 |
≤165 |
≤164 |
| Non-saponifiable matter % |
≤5 |
≤5 |
≤6 |
Insoluble matter in ethanol % |
≤0.03 |
≤0.03 |
≤0.04 |
Ash% |
≤0.02 |
≤0.03 |
≤0.04 |
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