Description

Rosin, Formaldehyde, Phenol, Glycerin, 1,2-Benzenedicarboxylic Anhydride, Linseed Oil, Tung Oil Polymer is a specialized synthetic resin produced through the polycondensation of multiple natural and synthetic monomers. This complex polymer is engineered to deliver a unique combination of hardness, chemical resistance, and adhesion properties. It serves as a critical raw material for manufacturers in the coatings, adhesives, and ink industries seeking high-performance, durable binder systems.

Application

• Industrial and Protective Coatings: As a key binder in high-performance varnishes, marine paints, and corrosion-resistant industrial coatings, providing excellent film formation and durability.
• Specialty Adhesives and Sealants: Used in the formulation of high-strength, thermosetting adhesives for wood, metal, and composite bonding.
• Printing Inks: Acts as a resinous component in specialty printing inks, contributing to gloss, rub resistance, and substrate adhesion.
• Foundry Core Binders: Employed in sand-casting processes as a binder resin for creating precise and strong mold cores.
• Electrical Insulating Varnishes: Formulated into varnishes for coating motor windings and electrical components, offering thermal and dielectric stability.
• Rubber Compounding: Functions as a tackifier and processing aid in certain rubber formulations to improve adhesion and processing characteristics.

Basic Information

Product Name	Rosin, Formaldehyde, Phenol, Glycerin, 1,2-Benzenedicarboxylic Anhydride, Linseed Oil, Tung Oil Polymer
CAS No.	66070-68-6
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Polymer)
Synonyms	Rosin-modified phenolic resin; Phenolic-modified rosin ester; Tung oil phenolic resin; Alkyd-type resin from rosin, phenol, and oils; Rosin-Phenol-Formaldehyde-Glycerin-Phthalic Anhydride-Tung Oil Polymer; Polymerized rosin phenol formaldehyde resin; Heat-reactive phenolic resin varnish; 66070-68-6
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict batch-to-batch consistency protocols. Quality is monitored through key parameters including acid value, viscosity, softening point, and color. A comprehensive Certificate of Analysis (COA) detailing the specific grade's properties is provided with every shipment to ensure it meets your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperatures (15-25°C/59-77°F). Keep away from heat sources and open flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Amber to brown solid lumps or flakes
Softening Point (Ring & Ball)	90 - 130 °C (Grade dependent)
Acid Value	≤ 30 mg KOH/g
Color (Gardner)	≤ 12
Viscosity (at 25°C, 60% in solvent)	Reported per grade
Solubility	Soluble in common organic solvents (esters, ketones, aromatic hydrocarbons)

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