Applications of Epoxidized Soyabean Oil in Industrial Manufacturing

Epoxidized Soyabean Oil, produced at our integrated facility, delivers essential plasticization and stabilization functionality to diverse manufacturing sectors. Our material serves established downstream industries with precise control of performance, regulatory compliance, and cost-efficiency across specialized applications. Explore key application scenarios below, each aligned to distinct industry protocols, processing demands, and market end-uses.

1. Flexible Polyvinyl Chloride (PVC) Compounding

Flexible PVC manufacturers depend on epoxidized soyabean oil as a primary secondary plasticizer and heat stabilizer, reducing phthalate content and enhancing long-term flexibility while maintaining compliance in consumer, building, and medical applications. We provide formulation guidance for integrating our material within tight specifications for clarity, migration resistance, and weatherability during high-throughput extrusion and calendaring operations.

Industry compliance standards

• REACH Annex XVII (EU Regulation for use in plastics)
• RoHS Directive 2011/65/EU (limitation of hazardous substances in electrical products)
• EN 71-3 (Safety of toys — migration of certain elements, applicable for toy-grade PVC)
• FDA 21 CFR 178.3740 (U.S. indirect food additives: adjuvants, production aids, and sanitizers)

Typical usage ratio

• 4% to 10% by PVC resin weight; adjusted according to targeted Shore A hardness, compatibility with primary plasticizer, and regulatory migration limits

Downstream process integration

• Added to the PVC compounding blend before fusion; commonly metered during high-shear mixing with primary plasticizers and stabilizers prior to sheet extrusion or calendaring

Final product types

• Flexible wire and cable insulation
• Flooring sheets
• Toy components
• Medical bags and tubing (non-DEHP applications)
• Wall coverings

2. Food Packaging Gasket and Seal Compounding

Closure liner and sealing compound manufacturers specify epoxidized soyabean oil to meet food contact requirements in can, cap, and jar applications. The product acts as a plasticizer for PVC-based or blended polymer systems used in foam or solid liners, with critical attention to organoleptic neutrality and regulatory extraction limits during high-temperature processing and migration testing.

Industry compliance standards

• FDA 21 CFR 175.300 (Resinous and polymeric coatings for food-contact)
• EU Regulation (EU) No 10/2011 (Plastic materials and articles intended to come into contact with food)
• China GB 9685 (Standard for the use of additives in food contact materials)

Typical usage ratio

• 6%–12%, dependent on cap lining thickness and migration test results (simulant types A-D, time/temperature profiles)

Downstream process integration

• Introduced with polymer granulate and stabilizers during Banbury mixing and pre-heating stages before molding into liner sheets, discs, or deposited seal profiles

Final product types

• Metal can lids with PVC-based gaskets
• Glass jar closures with PVC/nitrile liners
• Plastic bottle cap seals for condiments, sauces, and soft drinks

3. Synthetic Leather and Flexible Film Production

Producers of synthetic leather and flexible calendered films utilize epoxidized soyabean oil to enhance elongation, reduce fogging, and achieve soft touch for upholstery and automotive interiors. Formulations are designed to withstand cyclic environmental stresses without significant loss of aesthetic or mechanical performance, and must align with OEM and regulatory limits for VOCs and phthalate alternatives.

Industry compliance standards

• GB/T 41006-2021 (Chinese technical specification for artificial leather)
• ISO 17072-2:2011 (Determination of certain azo colorants in leather)
• UL 94 V-2 (Vertical burn test for automotive interiors, when plasticizer impacts flammability ratings)
• Automotive OEM RSLs (Restricted Substances Lists, e.g., GADSL)

Typical usage ratio

• 7% to 15%, tuned to polymer matrix flexibility, surface gloss, and cold crack resistance requirements

Downstream process integration

• Blended with PVC or PU resin, fillers, and colorants in heated mixers before being calendered into rolls or applied onto textile substrates for supported leather applications

Final product types

• Automotive seat coverings and dashboards
• Faux leather furniture upholstery
• Flexible tablecloth films
• Interior wall coverings for public transport

4. Epoxy Resin Formulations for Coatings and Adhesives

Formulators in specialized coatings and adhesives integrate epoxidized soyabean oil as a reactive diluent and flexibilizer in epoxy systems to improve elongation and impact resistance without significantly sacrificing crosslink density. Used for concrete coatings, anti-corrosive primers, and environmental-friendly adhesive lines, it permits reduced volatile organic compound emissions and enhances workability during batch production and application.

Industry compliance standards

• ASTM D1763 (Standard Specification for Epoxy Resin Adhesives)
• ISO 12944-5 (Corrosion protection of steel structures by protective paint systems—performance requirements for coatings)
• REACH Annex XVII (Epoxy-related substance restrictions)
• US EPA 40 CFR Part 59 (Architectural Coatings VOC regulations)

Typical usage ratio

• 2% to 6% for coatings; up to 8% for adhesives, selected by test panel mechanical properties, viscosity targets, and pot-life requirements

Downstream process integration

• Mixed during pre-batch with standard epoxy resin, followed by pigment and additive incorporation, then dispersion before final curing agent addition

Final product types

• Industrial floor and wall coatings
• Construction joint adhesives
• Anti-corrosive metal primers
• Epoxy-based mortars for infrastructure repair

5. Rubber Compounding for Automotive and Footwear Applications

Industrial rubber producers adopt epoxidized soyabean oil as a non-toxic processing aid and plasticizer in nitrile, neoprene, and SBR blends to promote filler dispersion, control volatility, and improve permanent set across dynamic load-bearing components. The material assists in minimizing extractable plasticizers, critical for odor and migration-sensitive end-uses and elastomer formulations that must comply with automobile interior and safety requirements.

Industry compliance standards

• GB/T 528 (Determination of tensile stress-strain properties of vulcanized rubber)
• ISO 11798 (Resistance to plasticizer migration in rubber)
• Automotive interior odor standards (such as VDA 270)
• SATRA TM 144 (Migration and exudation tests relevant for footwear)

Typical usage ratio

• 5% to 12%, variable with type of rubber, filler loading, and compression set or volatility targets

Downstream process integration

• Injected together with other compounding ingredients during mixing on a two-roll mill or internal mixer, before vulcanization; aids in accelerating filler incorporation

Final product types

• Anti-vibration pads
• Shoe soles and midsoles
• Automotive door and trunk gaskets
• Flexible hose linings

6. Specialty Ink and Paint Production

Manufacturers of plasticizer-modified printing inks and specialty paints employ epoxidized soyabean oil to extend printability, improve gloss, and control viscosity, with emphasis on minimizing migration and odor for flexible packaging, labels, and children’s art supplies. It fits low-migration ink systems and high-speed gravure or flexographic operations with strict attention to formulation stability on storage and during application.

Industry compliance standards

• Swiss Ordinance SR 817.023.21 (Materials in contact with foodstuffs, relevant for printing inks)
• EuPIA Exclusion Policy for Printing Inks and Related Products
• EN 71-7 (Toy safety — Finger paints)

Typical usage ratio

• 1.5% to 5% by binder weight, adjusted based on required viscosity, open time, and drying properties for each ink or paint application

Downstream process integration

• Introduced with resin binders and color concentrates during pre-dispersion, then dispersed onto three-roll mill or high-shear mixer before final reduction and packaging

Final product types

• Flexible packaging inks
• Plastic label paints
• Children's finger paints (non-toxic)
• Wallpaper inks