Description

Castor Oil (Dehydrated)/ Phenol/ Formaldehyde/ Rosin is a specialized resinous product derived from the condensation reaction of dehydrated castor oil, phenol, and formaldehyde, modified with rosin. This unique formulation is engineered to provide enhanced adhesion, water resistance, and thermal stability, making it a critical component in high-performance industrial coatings and adhesives. It is primarily sought after by manufacturers in the paint, varnish, printing ink, and specialty adhesive industries who require durable, chemically resistant binders.

Application

• As a key binder and film-forming agent in high-quality industrial alkyd paints and coatings.
• In the formulation of printing inks to improve gloss, adhesion, and drying properties.
• As a modifying resin in hot-melt and pressure-sensitive adhesives for enhanced tack and bond strength.
• For producing varnishes and wood finishes that offer excellent durability and moisture resistance.
• As a component in wire enamels and electrical insulation materials.
• In the manufacture of linoleum and floor coverings as a plasticizer and binder.

Basic Information

Product Name	Castor Oil (Dehydrated)/ Phenol/ Formaldehyde/ Rosin
CAS No.	66071-49-6
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Contact for details
Synonyms	Rosin-modified phenol formaldehyde resin; Dehydrated castor oil phenol formaldehyde resin; Alkyd resin modified with rosin; Phenolic modified alkyd resin; DCO-PF resin; Rosin-modified phenolic resin; PF resin modified with dehydrated castor oil
EINECS	Contact for details

Quality Control

Our Castor Oil (Dehydrated)/ Phenol/ Formaldehyde/ Rosin is manufactured under strict process controls to ensure batch-to-batch consistency and performance. Quality is verified through a series of tests including viscosity, acid value, color, and solubility. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and open flames. 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	Viscous liquid to solid resin
Color (Gardner)	≤ 12
Acid Value (mg KOH/g)	≤ 20
Viscosity (Gardner-Holdt)	Z2 - Z6
Solubility	Soluble in aromatic hydrocarbons, esters, ketones
Non-Volatile Matter (%)	≥ 98

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