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.
It is not a standardized commercial grade, but rather an industrial or off-spec material used in specific low-cost applications.
A low-grade pine resin, dark in color with lower purity.
Used mostly in industrial and cost-sensitive applications.
Not suited for food-grade, cosmetic, or pharmaceutical uses due to impurities and odor.
Reclaimed Rubber Production: Ideal for low-cost rubber compounds, especially in tire or shoe sole recycling.
Industrial Adhesives & Sealants: Used in building materials, waterproof coatings, and non-critical glue applications.
Low-grade Inks & Paints: Suitable for dark-colored formulations and bulk paint industries.
Construction & Plywood: Acts as a resin modifier or filler agent for plywood and particleboard.
Other Industrial Applications: Includes use in batik wax, paper sizing, and roofing materials.
Ideal for large-volume buyers looking to reduce raw material costs.
Composition
: Primarily resin acids, which are monocarboxylic diterpene acids.
Chemical Formula
: C₂₀H₃₀O₂
Gum Rosin WW Grade Physical & Chemical Properties:
Gum Rosin X 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
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
Refined for purity and reliability, our materials deliver exceptional stability and versatility. Ideal for various applications, they support innovation while maintaining superior quality.