Description

Castor Oil, Polymer With Glycerol, Linseed Oil And Phthalic Anhydride is a specialized alkyd resin derived from natural oils and polybasic acids. This polymer is valued for its ability to form durable, flexible, and chemically resistant films upon curing. It is a critical raw material for industrial manufacturers seeking high-performance, bio-based coating solutions. The compound is identified by CAS No. 68515-18-4.

Application

• Industrial Surface Coatings: As a primary resin in the formulation of air-drying and baking enamels for metal substrates.
• Protective Paints and Primers: Used in corrosion-resistant primers and maintenance paints for machinery, agricultural equipment, and structural steel.
• Wood Finishes: A key component in varnishes, lacquers, and wood stains, providing excellent penetration and a hard, protective finish.
• Printing Inks: Serves as a binder in specialty printing inks, contributing to gloss, adhesion, and drying properties.
• Adhesives and Sealants: Imparts flexibility and adhesion in certain industrial adhesive and caulk formulations.
• Marine Coatings: Formulated into coatings for marine environments due to its good water resistance and durability.

Basic Information

Product Name	Castor Oil, Polymer With Glycerol, Linseed Oil And Phthalic Anhydride
CAS No.	68515-18-4
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Alkyd resin from castor oil, glycerol, linseed oil, and phthalic anhydride; Castor oil alkyd resin; Linseed-castor alkyd; Phthalic alkyd resin; Modified alkyd resin; Drying oil alkyd; Long oil alkyd resin; Polyester resin based on castor and linseed oils
EINECS	Contact for details

Quality Control

Our alkyd resin products are manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Key parameters such as acid value, viscosity, solids content, and color are rigorously tested against internal specifications. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Keep away from heat, sparks, and open flame. Due to its nature, the product should be stored under an inert atmosphere to prevent skinning and oxidation. Keep containers tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Viscous, clear to pale yellow liquid
Solids Content	60 - 80 %
Viscosity (Gardner-Holdt)	Z2 - Z6
Acid Value	≤ 15 mg KOH/g
Color (Gardner)	≤ 8
Drying Time (Tack-free)	≤ 8 hours

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