Fumaric Modified Rosin Ester (Hydro-Rez)

Fumaric modified rosin ester is a high quality modified rosin ester produced by chemically modifying natural rosin with fumaric acid to enhance its performance characteristics. This type of modified rosin ester is widely valued for its improved thermal stability, strong adhesion, and excellent compatibility with a broad range of polymers and solvents. As a versatile rosin ester, it is commonly used in applications such as coatings, inks, adhesives, and rubber compounding.

Available in both standard and customized rosin ester resin grades, fumaric resin can be tailored to meet specific formulation requirements. From rosin ester customized for specialized applications to more cheap modified rosin ester options for cost-sensitive uses, this material offers flexibility without sacrificing reliability. Whether sourced as a high quality modified rosin ester or a discount modified rosin ester, fumaric modified rosin ester remains a dependable choice for manufacturers seeking consistent performance from a proven resin technology.

Unique Properties

  • Alcohol Solubility: Soluble in alcohol, making it versatile for various solvent-based applications.
  • Water Dispersible: Can be dispersed in water with the use of ammonia, amines, or morpholine, providing flexibility in formulation.
  • High Melting Point: Promotes fast solvent release and ensures good leveling properties in coatings and inks.
  • Compatibility: Compatible with shellac and Manila copal resins, allowing for diverse formulation options.
  • Flexographic Inks: Recommended for use in solvent or water-based flexographic inks, enhancing printing performance.
  • Varnishes: Suitable for use in mineral spirit varnishes, providing high-quality finishes.

Type of Modified Rosin Ester

Type Key Features Applications
Fumaric Modified Rosin Ester High thermal stability, strong adhesion, good compatibility Coatings, inks, adhesives, rubber compounding
Hydrogenated Rosin Ester Improved color stability, oxidation resistance Printing inks, adhesives, varnishes
Glycerol Rosin Ester Flexible, good film formation Adhesives, hot-melt, paints
Pentaerythritol Rosin Ester High hardness, excellent weathering Coatings, varnishes, inks
Maleic Anhydride Modified Rosin Ester Enhanced reactivity, improved flow Adhesives, rubber compounding, varnishes

About our Supplier

Lawter, A Harima Chemicals Group Company, has a foundation in developing products that utilize pine chemical resources for over 60 years. Throughout the years Lawter has been able to proudly serve the graphic arts, adhesives, specialty coatings and synthetic rubber industries. Lawters success is now built on the foundation of formulating new dispersion technology, strategic sourcing of raw materials and a global network of manufacturing and technology centers.

Applications

Hydro-Rez is widely used in several industries due to its versatile properties. In the printing industry, it is a preferred choice for solvent and water-based flexographic inks, providing excellent adhesion, high gloss, and fast solvent release for high-quality printing results. The coatings industry utilizes Hydro-Rez 5626 E for its compatibility with shellac and Manila copal resins, enhancing the durability and finish of various coatings. Additionally, it is employed in the production of mineral spirit varnishes, where its high melting point and good leveling properties ensure a smooth, professional finish. Its ability to be dispersed in water with ammonia, amines, or morpholine makes it a valuable component in eco-friendly, low-VOC formulations, further extending its application across environmentally conscious markets.

Highlighted Product Grade

Grade Acid Value (mg KOH/g) Melting Point (°C) Solubility Key Performance Features Typical Applications
Hydro-Rez™ 5626 E 205 180 Soluble in alcohol; dispersible in water with ammonia, amines or morpholine High melting point, fast solvent release, good leveling, high gloss WB/SB flexographic & gravure inks, OPV, specialty and spirit varnishes
Hydro-Rez™ 6500 E 305 160 Soluble in alcohol; dispersible in water with ammonia, amines or morpholine High melting point, fast solvent release, good leveling, high gloss, good flexibility, high rub resistance, adhesion to aluminum foil WB/SB flexographic & gravure inks, specialty and spirit varnishes, steam and moisture set
*For a complete overview or more information about our products, we kindly request you to contact us.
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Jacques Everaert
Business Unit Manager Adhesives

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