Description

Benzenesulfonic Acid, 4-Hydroxy-, Polymer With Formaldehyde, Phenol And Urea is a specialized phenolic resin polymer, engineered for high-performance applications requiring thermal stability and chemical resistance. This compound is valued for its ability to act as a durable binder, cross-linking agent, or modifier in demanding industrial formulations. It is primarily sought by manufacturers in the adhesive, coating, and composite material sectors, where robust material properties are critical.

Application

• High-Temperature Adhesives and Binders: Used as a thermosetting resin in adhesives for automotive, aerospace, and construction materials.
• Industrial Coatings and Paints: Serves as a cross-linking agent to enhance the chemical resistance, durability, and thermal stability of protective coatings.
• Friction Materials: Employed as a binder in brake pads and clutch facings to improve performance under high-stress conditions.
• Foundry Resins: Acts as a core binder in sand casting processes for metal fabrication.
• Electrical Laminates: Used in the production of printed circuit boards (PCBs) and other composite electrical insulation materials.
• Molding Compounds: Incorporated into phenolic molding compounds for automotive and appliance components.
• Ion Exchange Resins: Can be utilized as a precursor or component in the synthesis of specialized ion exchange media.

Basic Information

Product Name	Benzenesulfonic Acid, 4-Hydroxy-, Polymer With Formaldehyde, Phenol And Urea
CAS No.	102561-67-1
Molecular Formula	(C6H6O4S · CH2O · C6H6O · CH4N2O)n
Molecular Weight	Polymer - Contact for details
Synonyms	Phenol, 4-hydroxybenzenesulfonic acid, polymer with formaldehyde and urea; Phenolic Sulfonic Acid Resin; Urea-Formaldehyde-Phenol-Sulfonic Acid Copolymer; p-Phenolsulfonic Acid-Formaldehyde-Phenol-Urea Polymer; Phenolsulfonic Acid Resin; Binder Resin PFU-S; Thermosetting Phenolic Sulfonate Polymer; Modified Phenolic Resin
EINECS	Contact for details

Quality Control

Our production of Benzenesulfonic Acid, 4-Hydroxy-, Polymer With Formaldehyde, Phenol And Urea adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through parameters including viscosity, gel time, residual monomer content, and thermal stability. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment.

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 material is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown solid or viscous liquid
Identification (IR)	Conforms to structure
Solid Content	≥ 65%
Viscosity (25°C)	Contact for details
Gel Time (at 150°C)	Contact for details
pH (of solution)	1.0 - 3.0
Moisture Content	≤ 5.0%

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