Description

Poly[(Phenyl Glycidyl Ether)-Co-Formaldehyde] is a specialized epoxy-functional phenolic resin, also known as a phenolic novolac epoxy resin. This compound is a critical intermediate and performance additive valued for its high thermal stability, excellent chemical resistance, and strong adhesion properties. It is essential for manufacturers in the electronics encapsulation, high-performance composite materials, advanced adhesives, and protective coating industries seeking to enhance the durability and reliability of their products.

Application

• Electronics Encapsulation & Molding Compounds: A key resin component for semiconductor packaging and epoxy molding compounds (EMCs), providing excellent moisture resistance and low thermal expansion.
• High-Performance Composite Materials: Used as a matrix resin or curing agent in fiber-reinforced composites for aerospace, automotive, and sporting goods, offering superior heat and chemical resistance.
• Advanced Adhesives & Sealants: Serves as a toughening agent and crosslinker in structural adhesives, especially for metal-to-metal bonding in demanding environments.
• Protective & Industrial Coatings: Imparts corrosion resistance, adhesion, and durability to coatings for pipelines, chemical tanks, and marine applications.
• Electrical Laminates: Used in the production of printed circuit board (PCB) substrates like FR-4, contributing to flame retardancy and thermal performance.
• Friction Materials: Employed as a binder in brake pads and clutch facings due to its thermal stability and binding strength.

Basic Information

Product Name	Poly[(Phenyl Glycidyl Ether)-Co-Formaldehyde]
CAS No.	28064-14-4
Molecular Formula	(C9H10O2·CH2O)n
Molecular Weight	Contact for details
Synonyms	Phenolic Novolac Epoxy Resin; Epoxy Phenolic Novolac; Poly[(phenyl glycidyl ether)-co-formaldehyde]; Epoxy Cresol Novolac (related class); EPN; Glycidyl Ether of Phenol-Formaldehyde Resin; Phenol-Formaldehyde Resin, Glycidyl Ether; Epoxy Novolac; 1,2-Epoxy-3-(phenoxymethyl)propane Homopolymer, Formaldehyde Polymer; Phenoxy Resin (related).
EINECS	Contact for details

Quality Control

Our Poly[(Phenyl Glycidyl Ether)-Co-Formaldehyde] is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including epoxy equivalent weight (EEW), viscosity, softening point, and hydrolyzable chloride content to ensure consistency and performance for your application. Certificates of Analysis (COA) are available upon request, and we can support compliance with relevant industry standards.

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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Yellow to brown solid / flakes
Epoxy Equivalent Weight (EEW)	170 - 230 g/eq
Softening Point	50 - 90 °C
Viscosity (at 150°C)	500 - 5000 mPa·s
Hydrolyzable Chloride	< 1000 ppm
Identification (IR)	Conforms

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