Description

Linseed Oil/ Rosin/ Isophthalic Acid/ Glycerol Alkyd Resin CAS NO 68915-28-6 is a specialized, high-performance synthetic resin engineered for demanding industrial coatings. This product offers a superior balance of durability, chemical resistance, and fast drying times, making it a critical component for high-quality surface finishes. It is primarily needed by manufacturers in the protective coatings, marine paints, industrial maintenance paints, and automotive refinish sectors seeking reliable performance.

Application

• Protective & Marine Coatings: Formulating high-durability paints for ships, offshore platforms, and coastal structures requiring excellent resistance to salt water and weathering.
• Industrial Maintenance Paints: Used in heavy-duty coatings for factory equipment, structural steel, bridges, and storage tanks where chemical and abrasion resistance are paramount.
• Automotive Refinish & OEM Primers: Serves as a key resin in primer-surfacers and topcoats, providing good adhesion, sandability, and a hard, glossy finish.
• Decorative & Architectural Paints: Enhances the performance of high-gloss trim paints, varnishes, and enamels for both interior and exterior applications.
• Metal Furniture & Appliance Coatings: Ideal for coatings on metal substrates requiring a tough, attractive, and durable film.
• Printing Inks: Used in specialty inks that require rapid setting and good gloss on non-porous substrates.

Basic Information

Product Name	Linseed Oil/ Rosin/ Isophthalic Acid/ Glycerol Alkyd Resin
CAS No.	68915-28-6
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Polymer)
Synonyms	Isophthalic Alkyd Resin; Glycerol Phthalic Alkyd Resin; Modified Alkyd Resin; Long Oil Alkyd Resin; Linseed Alkyd; Rosin Modified Alkyd; Alkyd Resin 68915-28-6; Paint Resin Binder
EINECS	Contact for details

Quality Control

Our alkyd resins are manufactured under strict process controls to ensure batch-to-batch consistency and performance. Quality is verified against key parameters including viscosity, acid value, color, and solids content. A Certificate of Analysis (COA) documenting these specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). 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	Viscous, clear to pale yellow liquid
Solids Content	60 - 70 %
Viscosity (Gardner-Holdt)	Z2 - Z5
Acid Value	≤ 10 mg KOH/g
Color (Gardner)	≤ 6
Drying Time (Set-to-touch)	≤ 4 hours

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