Description

Glycerin Rosin Ester is a pale, thermoplastic resin derived from the esterification of rosin with glycerol. This compound is valued for its excellent tackifying properties, good aging characteristics, and compatibility with a wide range of polymers. It serves as a crucial raw material in the formulation of high-performance adhesives, sealants, and coatings for demanding industrial applications. Key industries that rely on this versatile resin include pressure-sensitive adhesives, hot-melt adhesives, chewing gum bases, and protective coatings.

Application

• Pressure-Sensitive Adhesives (PSAs): A primary tackifier for labels, tapes, and graphic films, providing immediate stickiness and peel strength.
• Hot-Melt Adhesives (HMAs): Enhances tack, adhesion, and flexibility in packaging, woodworking, and product assembly adhesives.
• Chewing Gum Base: Used as a masticatory substance to provide the desired chew texture and elasticity.
• Protective Coatings & Inks: Improves gloss, hardness, and drying properties in varnishes, printing inks, and overprint lacquers.
• Sealants & Caulks: Imparts flexibility and adhesion in construction and automotive sealant formulations.
• Polymer Modification: Acts as a processing aid and modifier for synthetic rubbers and other elastomers.

Basic Information

Product Name	Glycerin Rosin Ester
CAS No.	8050-31-5
Molecular Formula	Complex Mixture
Molecular Weight	N/A (Polymeric Ester)
Synonyms	Glycerol Rosinate; Ester Gum; Glycerol Ester of Rosin; Glyceryl Rosinate; Rosin Glycerol Ester; Rosin Ester Gum; Glycerol Abietate; Glycerol Ester of Wood Rosin; Glycerol Ester of Gum Rosin; Food Grade Ester Gum (FCC); Tackifier RESIN G-100
EINECS	232-482-5

Quality Control

Our Glycerin Rosin Ester is manufactured under a stringent quality management system. Production batches are tested against key parameters including acid value, softening point, color, and solubility to ensure consistent performance. We offer grades compliant with relevant industry standards such as FCC for food-contact applications. A Certificate of Analysis (COA) detailing the specific test results is provided with every shipment to guarantee traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is easily oxidized; prolonged storage should be under an inert atmosphere (e.g., nitrogen) to maintain product integrity. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	80 - 90 °C
Acid Value	≤ 10 mg KOH/g
Color (Gardner)	≤ 8
Solubility (in Toluene)	Clear
Ash Content	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.