Description

Linseed oil, polymer with benzoic acid, formaldehyde, pentaerythritol, phenol, phthalic anhydride, rosin, 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione and trimethylolpropane CAS NO 129126-85-8 is a specialized, high-performance alkyd resin designed for demanding industrial applications. This complex polymer offers a unique balance of properties derived from its multi-component formulation, including excellent film formation, adhesion, and durability. It is a critical raw material for manufacturers in the coatings, adhesives, and sealants industries seeking to enhance product performance. The compound is supplied with full traceability and quality documentation to ensure batch-to-batch consistency for your production processes.

Application

This advanced alkyd resin is engineered for high-performance applications where superior film properties and chemical resistance are required.

• Industrial and Protective Coatings: As a primary binder in high-durability paints and varnishes for metal, wood, and concrete substrates.
• Marine and Anti-Corrosive Paints: Formulating coatings that provide long-term protection against harsh environmental conditions, saltwater, and corrosion.
• Automotive Refinish and OEM Coatings: Used in primer-surfacers and topcoats requiring excellent gloss retention, adhesion, and weatherability.
• Printing Inks: Serving as a resin component in specialty inks that demand fast setting, good gloss, and rub resistance.
• Adhesives and Sealants: As a tackifying and reinforcing agent in formulations requiring strong bonding and flexibility.
• Industrial Maintenance Coatings: For machinery, structural steel, and factory equipment where durability and chemical resistance are paramount.

Basic Information

Item	Detail
Product Name	Linseed oil, polymer with benzoic acid, formaldehyde, pentaerythritol, phenol, phthalic anhydride, rosin, 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione and trimethylolpropane
CAS No.	129126-85-8
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Polymer - Variable
Synonyms	Alkyd resin based on linseed oil, benzoic acid, formaldehyde, pentaerythritol, phenol, phthalic anhydride, rosin, tetrahydrophthalic anhydride, and trimethylolpropane; Modified linseed oil alkyd; Phenolic modified alkyd resin; Rosin-modified alkyd; THPA-modified alkyd; Pentaerythritol alkyd; Long oil alkyd resin; High-performance coating resin.
EINECS	Contact for details

Quality Control

Our production of this alkyd resin adheres to stringent quality management protocols to ensure it meets the precise requirements of industrial formulations. Each batch is characterized for critical parameters including viscosity, acid value, solids content, color, and drying time. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We are committed to supply chain reliability and consistent product performance for your manufacturing operations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizers. Ideal storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to prevent skinning and maintain product integrity.

Specification

Item	Specification
Appearance	Viscous liquid, clear to slightly hazy
Color (Gardner)	≤ 12
Solids Content	60 - 70 %
Viscosity (at 25°C)	Z2 - Z4 (Gardner-Holdt)
Acid Value	≤ 15 mg KOH/g
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.