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Tall Oil Rosin

Other names: Tall rosin, Rosin from tall oil

International name: Tall oil rosin

Packaging: Barrels

Manufacturing locations: Koryazhma, Ust-Ilimsk, Bratsk

Price: Price on request

Description
Features
Application

Tall oil rosin is a solid glassy substance obtained from tall oil, a by-product of sulfate pulp production. It is characterized by good solubility in organic solvents, high acidity, and strong adhesion properties.

The solid rosin is ideal for soldering — it spreads evenly and reliably coats the joint area, ensuring a strong and clean seam. Additionally, tall oil-based rosin is used in the production of adhesives, paints, and varnishes, where it acts as an active binding component.

The liquid form of rosin is used as a thickener in the cable industry, as part of mastics and insulating coatings. This is a versatile product combining affordable price with a wide range of applications across various industries — from electronics to petrochemicals.

Tall oil rosin is valued for its versatility, eco-friendliness, compatibility with polymers, and its ability to improve adhesion, plasticity, and viscosity in formulations.

Characteristic	Value
Appearance	Lump or flake solid
Color (by Iodometry or Gardner scale)	From 6 to 18 (depending on grade)
Resin acids content, %	≥ 90
Acid value, mg KOH/g	160–190
Iodine value	120–150
Softening point, °C	70–80
Density, g/cm³	1.03–1.07
Solubility	Soluble in organic solvents (turpentine, gasoline, acetone, alcohol)
Flash point	~200 °C
Resistance	Medium to moisture, low to UV

Paints and varnishes production — used as a modifier for alkyd resins and as a plasticizer. Provides good adhesion, gloss, and water resistance.
Adhesive formulations — used in the production of hot-melt adhesives, glue sticks, and PVA systems. Improves tackiness, surface adhesion, and shear strength.
Rubber industry — used as a plasticizer in rubber, especially in the production of automotive tires, belts, and sealants. Increases elasticity and adhesion.
Chemical and petrochemical industry — included in the composition of surfactants, corrosion inhibitors, emulsifiers, and resin acid salts.
Insulation materials — used as a component in the production of mastics, cable compounds, and waterproof coatings.
Welding electrodes production — acts as a binder and improves coating quality.
Printing and paper industry — used in offset ink formulations, printing compositions, and paper with improved absorbency.