Description

Rosin/Formaldehyde Copolymer CAS NO 65997-07-1 is a synthetic resin produced by the condensation reaction of rosin (a natural resin) with formaldehyde. This compound is valued for its excellent tackifying, adhesive, and film-forming properties, making it a crucial component in industrial formulations. It is primarily used by manufacturers in the adhesives, coatings, printing inks, and rubber industries to enhance product performance and durability.

Application

• Pressure-Sensitive Adhesives (PSAs): A key tackifier in tapes, labels, and adhesive films.
• Hot-Melt Adhesives: Provides tack and improves adhesion in packaging, woodworking, and product assembly.
• Rubber Compounding: Used as a processing aid and tackifier in tire manufacturing and industrial rubber goods.
• Printing Inks: Imparts gloss, rub resistance, and improved pigment wetting in various ink systems.
• Protective Coatings: Enhances film hardness, water resistance, and adhesion in industrial and marine paints.
• Sealants and Caulks: Improves cohesion, adhesion, and flexibility.
• Paper Sizing: Used to improve water resistance and surface strength of paper and paperboard.

Basic Information

Product Name	Rosin/Formaldehyde Copolymer
CAS No.	65997-07-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Rosin-Formaldehyde Resin; Formaldehyde Rosin Adduct; Polymerized Rosin Formaldehyde; Rosin Modified Phenolic Resin; Tackifying Resin; Abietic Acid-Formaldehyde Polymer; Colophony-Formaldehyde Copolymer; FORAL AX
EINECS	266-042-1

Quality Control

Our Rosin/Formaldehyde Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance in your applications. Key parameters such as softening point, acid value, and color are monitored. A Certificate of Analysis (COA) documenting these specifications is available for every shipment 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). This product is hygroscopic (moisture-sensitive); keep containers tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	80 - 120 °C
Acid Value	≤ 30 mg KOH/g
Color (Gardner)	≤ 8
Solubility	Soluble in common organic solvents

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