Black Gum Rosin
Black Gum Rosin
Black gum rosin is a lower-grade derivative of natural gum rosin, often obtained from the distillation of crude pine resin or as a byproduct of gum rosin production where oxidation, overheating, or contamination may occur.
Natural Origin
Versatile Applications
It is not a standardized commercial grade, but rather an industrial or off-spec material used in specific low-cost applications.
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A low-grade pine resin, dark in color with lower purity.
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Used mostly in industrial and cost-sensitive applications.
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Not suited for food-grade, cosmetic, or pharmaceutical uses due to impurities and odor.
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Reclaimed Rubber Production: Ideal for low-cost rubber compounds, especially in tire or shoe sole recycling.
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Industrial Adhesives & Sealants: Used in building materials, waterproof coatings, and non-critical glue applications.
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Low-grade Inks & Paints: Suitable for dark-colored formulations and bulk paint industries.
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Construction & Plywood: Acts as a resin modifier or filler agent for plywood and particleboard.
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Other Industrial Applications: Includes use in batik wax, paper sizing, and roofing materials.
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Ideal for large-volume buyers looking to reduce raw material costs.
Black Gum Rosin Technical Data
Composition
: Primarily resin acids, which are monocarboxylic diterpene acids.
Chemical Formula
: C₂₀H₃₀O₂
Gum Rosin WW Grade Physical & Chemical Properties:
- Color :Dark brown to black (opaque)
- Softening Point :Lower than standard grades (approx. 70–85°C)
- Acid Value :Typically lower, varies
- Solubility :Soluble in alcohols, esters, turpentine
- Form :Solid, brittle or sticky blocks
- Odor :Strong resinous smell
Gum Rosin X Grade Physical & Chemical Properties:
- Acid Value160–200
- Saponification Value170–220
- Softening Point78°C min
- Color (Colorimeter)5.1-6.0 max
- Volatile Oil Content2.0% max
- Ash Content0.02% max
- Insoluble Material Content in Toluene0.02% max
Physical Characteristics
Color
: Dark brown to black (opaque)
Softening Point
: Lower than standard grades
(approx. 70–85°C)
Acid Value
: Typically lower, varies
Solubility
: Soluble in alcohols, esters, turpentine
Form
: Solid, brittle or sticky blocks
Odor
: Strong resinous smell
Packaging
: 20FT Dry Container
25KG Boxes with Pallets
Maximum 15MT/Container
Shapes Available
: Block solid form
CAS No.
: 8050-09-7
EINECS No.
: –
HS Code
: 3806.10.00
Enhance Performance with Trusted Materials
Refined for purity and reliability, our materials deliver exceptional stability and versatility. Ideal for various applications, they support innovation while maintaining superior quality.