Description

Phenol-Formaldehyde Resin CAS NO 9003-35-4 is a synthetic thermosetting polymer, commonly known as phenolic resin or Bakelite, formed by the polycondensation of phenol with formaldehyde. This versatile material is valued for its exceptional thermal stability, mechanical strength, and excellent electrical insulation properties, making it a cornerstone of high-performance industrial composites. It is a critical raw material for manufacturers in the automotive, electrical, construction, and abrasive industries seeking durable, heat-resistant components.

Application

• Molding Compounds: For the production of heat-resistant electrical components, appliance handles, and automotive parts via compression or injection molding.
• Friction Materials: As a binding agent in brake pads, clutch facings, and other friction linings due to its thermal stability.
• Foundry Binders: Used in sand casting processes as a core and mold binder for metal casting.
• Laminates & Composites: Impregnated into paper, fabric, or glass fiber to produce high-strength laminates for circuit boards, countertops, and decorative surfaces.
• Abrasive Products: As a resin bond in grinding wheels and coated abrasives (sandpaper).
• Insulation Materials: For manufacturing thermal and acoustic insulation foams and panels.
• Adhesives & Coatings: Formulated into high-performance wood adhesives (e.g., for plywood) and protective industrial coatings.

Basic Information

Product Name	Phenol-Formaldehyde Resin
CAS No.	9003-35-4
Molecular Formula	(C7H6O2)n (Representative)
Molecular Weight	Variable polymer
Synonyms	Phenolic Resin; Bakelite; Phenol Formaldehyde Polymer; PF Resin; Novolac (acid-catalyzed); Resol (base-catalyzed); Phenol-Formaldehyde Polycondensate; Phenoplast
EINECS	Contact for details

Quality Control

Our Phenol-Formaldehyde Resin is manufactured under strict process controls to ensure batch-to-batch consistency and performance. Quality is verified through a series of tests including gel time, melt viscosity, free phenol content, and hexamine content for novolacs. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters to meet your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and open flame. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to brown solid flakes or powder
Gel Time (at 150°C)	40 - 120 sec (Grade dependent)
Melt Viscosity	Specification available upon request
Free Phenol Content	< 1.0%
Hexamine Content (Novolac)	5 - 15%
Softening Point (Ring & Ball)	80 - 120°C

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