Description

Phenol-Resorcinol-Formaldehyde Resins are high-performance, thermosetting phenolic resins engineered for superior adhesion and durability. These resins are critical for applications demanding exceptional bonding strength, chemical resistance, and thermal stability under demanding conditions. They are essential raw materials for manufacturers in the automotive, aerospace, construction, and woodworking industries, particularly for producing high-grade adhesives, coatings, and composite materials.

Application

• High-Performance Wood Adhesives: Primary binder for structural laminated beams, finger-jointing, and exterior-grade plywood, offering excellent water and weather resistance.
• Tire Cord Adhesives: Key component in dip formulations for bonding textile or steel cords to rubber in tire manufacturing, ensuring durability.
• Friction Material Binders: Used in brake pads and clutch facings to bind reinforcing fibers and fillers, providing thermal stability.
• Aerospace & Automotive Composites: Matrix resin for advanced composites requiring high strength-to-weight ratios and fire retardancy.
• Foundry Binders: Core and mold binders in metal casting for producing complex, high-precision castings.
• Abrasive Wheel Binders: Bonding agent for grinding wheels and abrasive tools, offering toughness and heat resistance.
• Waterproof Coatings & Sealants: Base resin for industrial coatings and sealants requiring robust chemical and moisture resistance.

Basic Information

Product Name	Phenol-Resorcinol-Formaldehyde Resins
CAS No.	25986-71-4
Molecular Formula	(C7H6O2·C6H6O2·CH2O)x
Molecular Weight	Polymeric substance
Synonyms	PRF Resin; Phenolic Resorcinol Resin; Resorcinol-Formaldehyde-Phenol Copolymer; Phenol/Resorcinol/Formaldehyde Terpolymer; PRF Adhesive Resin; Cold-Setting Phenolic Resin; Resorcinol Modified Phenolic Resin; Laminating Resin PRF Type
EINECS	Contact for details

Quality Control

Our Phenol-Resorcinol-Formaldehyde Resins are manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including viscosity, gel time, solids content, and free formaldehyde levels to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) documenting full specifications are available upon request.

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). Keep away from heat sources and open flame. Under these conditions, the product has a typical shelf life of 12 months from the date of manufacture.

Specification

Item	Specification
Appearance	Dark red to brown viscous liquid or solid
Solids Content	Contact for details
Viscosity (25°C)	Contact for details
Gel Time (at specific temperature)	Contact for details
pH	Contact for details
Free Formaldehyde	≤ 0.5%
Free Phenol	Contact for details

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