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Our product range contains a wide range of Gum Rosin
Gum Rosin, also called colophony or Greek pitch, is a solid form ofresinobtained frompinesand some otherplants, mostlyconifers, produced by heating fresh liquid resin to vaporize thevolatileliquidterpenecomponents. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of differentresin acids, especiallyabietic acid.
Gum Rosin is distilled from natural resin raw material.Its chemical composition is C19H29COOH , the isomers ofresin acid. It is widely used in paints, paper, soap, rubber, food, chemical and pharmaceutical industries with unique significant characteristic.
.Specifications
| Grade | X | WW | WG | N | M | K |
| Appearance | Transparent Solid | |||||
| Color | slightly yellow | pale yellow | yellow | deep yellow | yellow brown | yellow red |
|
| Correspond to the Standard Glass Color Piece of Rosin | |||||
| Softening Point (R&B), C, min | 76 | 75 | 74 | |||
| Acid Value, | 166 | 165 | 164 | |||
| Alcohol insoluble | 0.03 | 0.03 | 0.04 | |||
| Unsaponifiable | 5 | 5 | 6 | |||
| Ash, (%) , max | 0.02 | 0.03 | 0.04 | |||
Additional Information:
Payment Terms : T/T, Western Union,
Packaging Details : in 25kg pp bags
Delivery Time : after confirmation of clients order