Quick Search
Gresinox 578 M is a chemically modified rosin known as a disproportionated rosin, which has a high content of dehydroabietic acid.
Gresinox 578 M is typically supplied as a solid resin in the form of flakes or powder and is used as a tackifier and performance additive in many industrial formulations.
Gresinox 578 M is derived from natural rosin but modified to provide improved stability and functionality, it combines good compatibility with polymers and resins with better resistance to oxidation and discoloration than unmodified rosin.
CAS Number: 61790-50-9
EINECS Number: 263-142-4
Synonyms: Resinacids, potassium salts, 61790-50-9, Resin acids and Rosin acids, potassium salts, Potassium resinate, POTASSIUMROSINATE, ROSINPOTASSIUMSALT, Bandis T 25KP, Bandis T 34K, Dresinate 91, Ediskan 5600
Gresinox 578 M is widely used in the production of adhesives, particularly hot-melt and pressure-sensitive adhesives, where it increases tack, peel strength, and cohesion, allowing adhesives to bond more effectively to various surfaces.
In rubber compounding, Gresinox 578 M serves as a tackifying resin that improves the handling and adhesion of uncured rubber sheets, making processes like tire building and rubber product assembly more efficient.
In pigment preparations and printing inks, it acts as a dispersing and binding agent that improves color stability, pigment distribution, and surface properties of the final product.
The resin is also used in specialty coatings where it contributes to hardness, gloss, and adhesion to substrates.
Gresinox 578 M is dehydroabietic acid-enriched disproportionated rosin-based tackifier.
Gresinox 578 M is used in adhesive applications.
Gresinox 578 M is a disproportionated rosin (a chemically modified form of rosin), notable for its elevated dehydroabietic acid content, and typically supplied as flakes or powder under CAS 8050‑09‑7.
It is classified among terpenes and used as a tackifier or resin additive with a shelf stability of approximately six months under standard storage conditions at temperatures below 30 °C
Gresinox 578 M can be converted into potassium or sodium soaps, which are applied to paper to improve water resistance, printability, and surface strength, making it suitable for packaging, printing, and specialty paper products.
Its solubility in alcohols and aromatic solvents makes it versatile for use in resin blends, inks, and coatings that require specific solvent systems.
Because of its high acid value and modified resin acid structure, it is compatible with a wide range of polymers and is often used as part of synergistic formulations with other tackifiers or additives to achieve precise viscosity, adhesion, and film-forming properties.
Gresinox 578 M is valued for its high level of chemical stability, which allows it to perform well in applications that are exposed to heat, light, or oxygen over long periods of time.
Its modification process enhances oxidation resistance compared to natural rosin, so adhesives and coatings containing this resin maintain their color and performance longer during storage and use.
Gresinox 578 M is especially useful in adhesive systems where strong initial tack and long-lasting adhesion are required, such as labels, tapes, packaging adhesives, and bookbinding glues.
Because of its compatibility with various synthetic polymers, it can be used in formulations based on styrene-butadiene rubber (SBR), ethylene-vinyl acetate (EVA), and other elastomers, improving cohesion without making the adhesive too brittle.
In rubber manufacturing, Gresinox 578 M helps to increase tack between uncured rubber layers, which is critical for processes like tire assembly or conveyor belt production.
Gresinox 578 M improves the internal bonding of the rubber components, reducing the risk of separation before vulcanization.
Gresinox 578 M also plays an important role in pigment concentrates and masterbatches, where its acidic functional groups enhance wetting and dispersion of pigments, leading to better color strength and uniformity in printing inks, paints, and coatings.
In the paper industry, when converted into its soap form, it is a key component in internal and surface sizing agents, providing improved ink holdout, print sharpness, and water resistance without compromising paper flexibility.
Because of its versatile solubility characteristics, Gresinox 578 M can be blended with other natural or synthetic resins to create customized resin systems with targeted properties such as gloss, hardness, flexibility, or adhesion.
This adaptability makes it suitable for coatings, varnishes, and specialty formulations that require both tackifying and film-forming properties.
Gresinox 578 M is used across adhesives, rubbers, coatings, inks, and paper treatments to enhance tack, improve processing, provide stable dispersion, and create durable, high-performance final products.
Approximately 160–170 mg KOH/g, reflecting a high content of acidic resin acids, notably dehydroabietic acid, which contributes to its functional performance in adhesive and resin systems
Typically marketed as flaked resin in 25 kg bags or large pallets; must be stored under cover at temperatures below 30 °C and preferably used within six months of receipt for optimal quality
In summary, Gresinox 578 M is a high-performance, rosin-derived tackifier that finds critical use in adhesives, rubber processing, pigment systems, and paper sizing applications.
Its resin chemistry—especially its high acid value and specific resin acid composition—makes it a versatile additive for enhancing stickiness, dispersion, and surface behavior in a wide range of industrial formulations.
Gresinox 578 M also finds applications in specialty elastomer products, where its role as a tackifier enhances the processing of rubber compounds that need precise handling before curing.
By improving the cohesion between rubber layers, it ensures better quality in products like hoses, belts, and molded rubber parts.
In coatings and varnishes, the resin contributes to better adhesion to substrates such as metals, plastics, and paper, while also improving gloss and surface hardness.
Gresinox 578 M can be blended with other resin systems to fine‑tune properties such as flexibility, resistance to cracking, and compatibility with pigments or fillers.
Because of its high acid value, Gresinox 578 M can form stable metal salts, making it suitable for use in certain specialty inks and pigments where controlled reactivity is needed for dispersion or color development.
The resin is also incorporated into intumescent and protective coatings, where its adhesive and film‑forming properties help bind other components while maintaining stability under heat exposure.
In these systems, it contributes to the structural integrity of the coating during a fire event.
Gresinox 578 M is useful in synthetic resin production as a building block for modified alkyds or ester resins, where it imparts tack, adhesion, and flexibility to the final polymer.
These resins are then used in industrial coatings, printing inks, and adhesives.
Uses of Gresinox 578 M:
Gresinox 578 M is widely used as a tackifier resin in hot-melt, pressure-sensitive, and solvent-based adhesives, where it enhances initial tack, peel strength, and cohesion, allowing adhesives to bond effectively to a wide variety of surfaces while maintaining good processability and storage stability.
In rubber compounding and tire manufacturing, it is used to improve tack between uncured rubber layers, which helps in the assembly and processing of rubber sheets and components before vulcanization, ensuring stronger bonding and better handling during production.
Gresinox 578 M is also incorporated into printing inks, coatings, and pigment concentrates as a resin that improves pigment wetting, dispersion, and adhesion, resulting in enhanced color strength, gloss, and uniformity of the final product.
The paper industry uses Gresinox 578 M, especially in the form of potassium or sodium soaps, as an internal or surface sizing agent to increase water resistance, ink holdout, and printability of paper and paperboard without compromising flexibility or strength.
Additionally, it is employed in specialty coatings, varnishes, and resin blends to enhance adhesion, film-forming ability, and surface properties such as hardness and gloss, while remaining compatible with various solvents and polymers.
Its high acid value and stability also make it useful as a reactive component in modified resin systems, where it can be combined with synthetic polymers to create customized materials for adhesives, inks, and industrial coatings that require precise viscosity and performance characteristics.
Gresinox 578 M acts as a rosin-based tackifier, enhancing adhesion and viscosity in adhesive formulations.
Gresinox 578 M is particularly valued in pressure-sensitive adhesives, hot-melt adhesives, and rubber-based glues, where crisp adhesive tack and peel strength are essential.
Used in the production of synthetic rubbers, where it contributes to tack and processing behavior.
Improves cohesion and handling characteristics in uncured rubber compounds during mixing and calendaring,
Serves in pigment preparation systems, aiding dispersion and binding of pigments in inks or coatings.
Gresinox 578 M controlled resin properties help ensure uniformity and stability in coloration processes.
Employed as a paper sizing agent, especially when formulated as potassium or sodium soaps of Gresinox 578 M.
Enhances paper strength and ink hold-out by modifying surface properties and resisting water penetration.
Gresinox 578 M solubility in common solvents such as alcohols and aromatics (though insoluble in aliphatics) makes it adaptable to various resin systems and coating solutions.
Often incorporated into adhesives, resins, pigments or inks where it improves viscosity, tack, and surface performance.
Safety Profile Of Gresinox 578 M:
Gresinox 578 M can cause irritation to the respiratory tract if its dust or fumes are inhaled, leading to coughing, throat discomfort, or shortness of breath, especially when exposure occurs in poorly ventilated areas or during high‑temperature processing.
Prolonged or repeated inhalation of dust can act as a sensitizer in some individuals, increasing the risk of asthma‑like symptoms or allergic reactions over time.
Skin contact may lead to irritation, dryness, or redness, and repeated exposure can sometimes cause allergic contact dermatitis in sensitive individuals.
Eye exposure to dust or fumes can result in redness, watering, or mild pain, so protective eyewear is recommended when handling the material.
Because Gresinox 578 M is a powdered resin, it can easily become airborne during transfer or mixing.
Although it is not highly flammable, dispersed dust in confined areas can present a potential dust explosion hazard if exposed to an ignition source.
When heated to high temperatures, the resin can decompose and release irritating or harmful vapors such as carbon monoxide, carbon dioxide, or acidic compounds, which can aggravate respiratory irritation and create a hazardous atmosphere.
