Description

Fatty Acids, C18-Unsatd., Dimers, Reaction Products With Formaldehyde-Phenol Polymer Glycidyl Ether is a specialized polymeric resin derived from unsaturated C18 fatty acid dimers and a phenolic glycidyl ether. This engineered chemical serves as a high-performance reactive modifier and crosslinking agent, imparting enhanced flexibility, adhesion, and chemical resistance to polymer matrices. It is primarily utilized by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to improve the durability and performance of their end products.

Application

• Epoxy Resin Modifier: Used as a flexibilizer and toughening agent in epoxy formulations for coatings and composites.
• Adhesive & Sealant Formulations: Enhances adhesion to difficult substrates and improves peel strength and elasticity.
• Industrial & Protective Coatings: Incorporated into alkyd, epoxy, and phenolic coatings to boost corrosion resistance and film integrity.
• Elastomer Production: Acts as a reactive plasticizer or crosslinker in polyurethane and other synthetic rubber systems.
• Foundry & Molding Sands: Serves as a core binder component, providing thermal stability and strength.
• Ink & Overprint Varnish Resins: Modifies rheology and enhances gloss, scratch resistance, and substrate wetting.

Basic Information

Product Name	Fatty Acids, C18-Unsatd., Dimers, Reaction Products With Formaldehyde-Phenol Polymer Glycidyl Ether
CAS No.	68139-82-2
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Polymeric Mixture)
Synonyms	Dimer acid-modified phenolic glycidyl ether resin; Epoxy resin adduct with dimerized fatty acids; Phenol-formaldehyde polymer, glycidyl ether, reaction products with dimerized unsaturated C18 fatty acids; Fatty acids, C18-unsaturated, dimers, reaction products with formaldehyde-phenol polymer glycidyl ether; Dimer acid epoxy adduct; Flexibilized epoxy hardener; Polymeric epoxy modifier; CAS 68139-82-2
EINECS	Contact for details

Quality Control

Our production of this polymeric resin adheres to strict batch-to-batch consistency protocols. Quality is monitored through key parameters including epoxy equivalent weight (EEW), viscosity, acid value, and color. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with each shipment to ensure it meets your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous amber to brown liquid
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Acid Value	≤ 5.0 mg KOH/g
Color (Gardner)	≤ 12
Non-Volatile Matter	≥ 99.0 %

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