Description

Soybean Oil, Polymer With Benzoic Acid, Glycerol, Isophthalic Acid, Pentaerythritol, Phthalic Anhydride And Trimethylolpropane is a specialized alkyd resin polymer derived from renewable and synthetic raw materials. This compound is engineered to provide a unique balance of flexibility, adhesion, and chemical resistance for high-performance coating formulations. It is a critical raw material for industrial manufacturers seeking durable, sustainable, and compliant surface solutions. The CAS number for this substance is 68309-70-6.

Application

This versatile alkyd resin polymer is formulated for demanding industrial coating applications where performance and durability are paramount.

• Industrial Maintenance Coatings: Used as a primary binder in protective paints for structural steel, machinery, and factory equipment, offering excellent corrosion resistance.
• Marine Coatings: A key component in anti-corrosive primers and topcoats for ships, offshore platforms, and port infrastructure due to its adhesion and water resistance.
• Automotive Refinish Paints: Provides a durable, high-gloss finish with good flow and leveling properties for repair and refinishing applications.
• Architectural & Decorative Coatings: Enhances the performance of high-quality trim, door, and specialty architectural paints, contributing to gloss retention and weatherability.
• Wood Finishes: Used in varnishes and stains for furniture and cabinetry, delivering a hard, protective film with good clarity.
• Corrosion-Inhibiting Primers: Serves as a resin base for primers that provide long-term protection for metal substrates in harsh environments.

Basic Information

Product Name	Soybean Oil, Polymer With Benzoic Acid, Glycerol, Isophthalic Acid, Pentaerythritol, Phthalic Anhydride And Trimethylolpropane
CAS No.	68309-70-6
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Varies by formulation (Contact for details)
Synonyms	Alkyd resin, soybean oil modified; Soybean oil alkyd resin; Modified alkyd resin; Benzoic acid/isophthalic acid/trimellitic anhydride/soybean oil polymer; Pentaerythritol/Phthalic Anhydride/Trimethylolpropane/Soybean Oil Copolymer; Long oil alkyd resin; Drying oil alkyd; Coating resin 68309-70-6
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. Quality parameters are monitored against key specifications for viscosity, acid value, solids content, and color to ensure batch-to-batch consistency and performance reliability for your coating formulations.

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. Keep away from strong oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Viscous liquid, clear to slightly hazy
Color (Gardner)	≤ 6
Solids Content	70 ± 2 %
Acid Value (mg KOH/g)	≤ 10
Viscosity (Gardner-Holdt)	Z2 - Z5
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.