Rubber and elastomer products are often exposed to heat, oxygen, ozone, mechanical stress, oils, weathering, and long service-life requirements. Selecting the right antioxidant and stabilizer system is critical for maintaining mechanical properties, reducing cracking, controlling discoloration, and supporting reliable production.
Why Rubber Antioxidants Matter in Elastomer Applications
Rubber materials can gradually lose performance during processing, storage, and end-use. Heat, oxygen, ozone, light exposure, dynamic fatigue, and contact with oils or chemicals may lead to cracking, hardening, discoloration, tackiness, surface blooming, or reduced tensile and elongation properties.
A properly selected antioxidant and stabilizer system can help rubber manufacturers address several practical formulation challenges:
- Improve heat-aging resistance
- Reduce oxidation-related property loss
- Support ozone and weathering protection when used in suitable systems
- Control discoloration in light-colored rubber applications
- Improve processing and storage stability
- Support formulation consistency during scale-up
- Provide an alternative evaluation path when existing materials face cost, lead-time, or supply concerns
Final suitability depends on the rubber type, formulation, processing conditions, end-use environment, and customer-side testing.
Application Areas We Support
J&K Scientific supports antioxidant and stabilizer selection for a wide range of elastomer and industrial rubber applications.
| Application Area | Common Customer Concerns | Potential Antioxidant Direction |
|---|---|---|
| NBR seals and O-rings | Heat aging, oil resistance, compression set, property retention | Phenolic antioxidants, sulfur-containing antioxidants, MBI/MMBI-type antioxidants, liquid antioxidant systems |
| EPDM rubber products | Heat aging, weathering, color stability, long-term service life | Non-staining antioxidants, phenolic antioxidants, stabilizer combinations |
| SBR/BR rubber goods | Heat aging, oxidation, fatigue, cost-performance balance | Amine antioxidants, phenolic antioxidants, TMQ/RD-type antioxidants |
| Rubber hoses and belts | Dynamic fatigue, heat exposure, ozone cracking, outdoor aging | Amine antioxidants, TMQ/RD-type antioxidants, antioxidant/antiozonant systems |
| Light-colored rubber | Yellowing, staining, migration, surface appearance | Non-staining phenolic antioxidants, MBI/MMBI-type antioxidants |
| Adhesives and sealants | Storage stability, viscosity change, color stability, oxidation during processing | Liquid phenolic antioxidants, polymer stabilizers, phosphite co-stabilizers |
| TPE and elastomer compounds | Processing stability, thermal oxidation, color control | Phenolic antioxidants, phosphite stabilizers, liquid antioxidants |
| Tire and tire-related components | Dynamic aging, heat build-up, ozone resistance, supply diversification | Amine antioxidants, TMQ/RD-type antioxidants, system evaluation support |
Rubber Antioxidant and Stabilizer Portfolio
Our portfolio covers multiple antioxidant chemistries for different rubber types, processing conditions, color requirements, and performance targets. Product selection should be based on application requirements rather than product name alone.
Amine Antioxidants and Antiozonants
Amine-type antioxidants are widely used in black rubber and dynamic rubber applications where heat aging, ozone resistance, and fatigue performance are important. They are commonly evaluated in tires, hoses, belts, industrial rubber goods, and other demanding rubber products.
Typical application directions include:
- Heat and oxygen aging protection
- Ozone cracking resistance when used in suitable systems
- Dynamic rubber goods
- Black rubber compounds
- Industrial rubber products
Typical product examples:
| Common Name | CAS No. | Chemical Name | Typical Positioning |
| 6PPD | 793-24-8 | N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine / N-(1,3-dimethylbutyl)-N′-phenyl-1,4-benzenediamine | Widely used antiozonant and antioxidant for tires, rubber hoses, belts and dynamic rubber goods |
| IPPD | 101-72-4 | N-Isopropyl-N'-phenyl-p-phenylenediamine | Antiozonant and antioxidant for rubber; commonly evaluated in black rubber and dynamic applications |
| DPPD | 74-31-7 | N,N'-Diphenyl-p-phenylenediamine | Aromatic amine antioxidant; used in rubber stabilization and related polymer applications |
| 7PPD | 3081-14-9 | N-(1,4-Dimethylpentyl)-N'-phenyl-p-phenylenediamine | Antiozonant/antioxidant candidate for rubber applications |
| DTPD | 68953-84-4 | Mixed diaryl-p-phenylenediamines / N,N'-ditolyl-p-phenylenediamine-type mixture | Antiozonant and antioxidant for tire and industrial rubber applications |
Important note:
Amine antioxidants may cause staining or discoloration and may not be suitable for light-colored or appearance-sensitive applications. Environmental and regulatory considerations should be reviewed according to the target market and final application.
Explore J&K's Amine Antioxidants and Antiozonants product category
Phenolic Antioxidants
Phenolic antioxidants are often selected when customers require thermal oxidation stability, lower staining tendency, and better suitability for light-colored or color-sensitive systems.
Typical application directions include:
- Light-colored rubber
- EPDM and NBR compounds
- TPE and elastomer compounds
- Adhesives and sealants
- Polymer stabilization
- Applications requiring lower staining compared with amine antioxidants
Typical product examples:
| Common Name | CAS No. | Chemical Name | Typical Positioning |
| Antioxidant 1010 | 6683-19-8 | Pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] | Hindered phenolic antioxidant for polymers, elastomers and color-sensitive systems |
| Antioxidant 1076 | 2082-79-3 | Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate | Hindered phenolic antioxidant; used in rubber, plastics, adhesives and polymer systems |
| Antioxidant 1520 | 110553-27-0 | 4,6-Bis(octylthiomethyl)-o-cresol / 2-Methyl-4,6-bis(octylthiomethyl)phenol | Liquid phenolic antioxidant for elastomers, adhesives, sealants, oils and polymer stabilization |
| Antioxidant 2246 | 119-47-1 | 2,2'-Methylenebis(6-tert-butyl-4-methylphenol) | Non-staining phenolic antioxidant for rubber and polymer applications |
Important note:
Phenolic antioxidants are commonly selected for lower-staining, color-sensitive, elastomer, adhesive, sealant and polymer stabilization applications. They are useful in many heat-aging and oxidation-control scenarios, but the final selection should be validated in the customer’s formulation.
Explore J&K's Phenolic Antioxidants product category
Liquid Antioxidants for Elastomers, Adhesives and Sealants
Liquid antioxidants can be useful when customers need easier dosing, improved handling, or better dispersion in selected formulations. They are often evaluated in elastomers, adhesives, sealants, oils, lubricants, and polymer systems.
Typical application directions include:
- Elastomer stabilization
- Adhesives and sealants
- NBR, SBR, BR, EPDM and TPE formulations
- Processing and storage stability
- Formulations requiring liquid additive handling
Typical product examples:
| Common Name | CAS No. | Chemical Name | Typical Positioning |
| Antioxidant 1520 | 110553-27-0 | 4,6-Bis(octylthiomethyl)-o-cresol / 2-Methyl-4,6-bis(octylthiomethyl)phenol | Liquid phenolic antioxidant for BR, SBR, NBR, SBS, adhesives, sealants, oils and lubricants |
Suggested evaluation areas:
Color stability, viscosity change, thermal aging, volatility, compatibility, and long-term storage performance.
Explore J&K's Liquid Antioxidants for Elastomers, Adhesives and Sealants product category
Non-staining Antioxidants
Non-staining antioxidants are suitable for applications where color, appearance, migration, or surface contamination are important concerns.
Typical application directions include:
- Light-colored rubber
- Footwear materials
- Latex products
- Consumer rubber goods
- EPDM profiles
- Appearance-sensitive molded rubber products
Typical product examples:
| Common Name | CAS No. | Chemical Name | Typical Positioning |
| Antioxidant 1520 | 110553-27-0 | 4,6-Bis(octylthiomethyl)-o-cresol | Liquid, non-staining/non-discoloring phenolic antioxidant in selected elastomer systems |
| Antioxidant 1076 | 2082-79-3 | Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate | Low-staining phenolic antioxidant; useful in color-sensitive elastomer/polymer systems |
| Antioxidant 2246 | 119-47-1 | 2,2'-Methylenebis(6-tert-butyl-4-methylphenol) | Non-staining phenolic antioxidant for rubber and polymer systems |
Suggested evaluation areas:
Yellowing, color change, migration, surface blooming, odor, and compatibility with the base rubber.
Explore J&K's Non-staining Antioxidants product category
Stabilizer Combinations and Evaluation Support
In many rubber applications, a single antioxidant may not fully address all aging mechanisms. Customers may need to evaluate antioxidant combinations based on the rubber type, processing temperature, final application, and service environment.
J&K Scientific can support formulation teams with product selection, sample evaluation, document preparation, and bulk supply discussions.
Selecting Antioxidants Based on Customer Problems
A practical antioxidant selection process should begin with the customer’s actual problem.
| Customer Problem | Possible Cause | Suggested Evaluation Direction |
|---|---|---|
| Rubber cracks during outdoor use | Ozone exposure, weathering, dynamic stress | Amine antioxidant/antiozonant systems, wax systems, weathering evaluation |
| Tensile strength drops after heat aging | Thermal oxidation, unsuitable stabilizer system | Phenolic antioxidants, TMQ/RD-type antioxidants, antioxidant combinations |
| Light-colored rubber turns yellow | Staining antioxidant, oxidation, incompatible additive | Non-staining phenolic antioxidants, MBI/MMBI-type antioxidants |
| NBR seal hardens after aging | Heat, oil exposure, oxidative degradation | Phenolic antioxidants, sulfur-containing antioxidants, liquid antioxidant systems |
| Adhesive changes color during storage | Oxidation, high-temperature processing, resin instability | Liquid phenolic antioxidants, phosphite co-stabilizers |
| Existing imported antioxidant is costly | Supplier concentration, price pressure | Alternative evaluation, A/B testing, sample qualification |
| Customer needs more stable supply | Long lead time, limited source, logistics risk | Bulk supply discussion, dual sourcing, documentation support |
Rubber Types and Elastomer Systems
Our antioxidant and stabilizer products may be evaluated in multiple rubber and elastomer systems, including:
- Natural rubber, NR
- Styrene-butadiene rubber, SBR
- Butadiene rubber, BR
- Nitrile rubber, NBR
- Hydrogenated nitrile rubber, HNBR
- Ethylene propylene diene monomer rubber, EPDM
- Chloroprene rubber, CR
- Butyl rubber, IIR
- Thermoplastic elastomers, TPE / TPR
- Adhesive, sealant and polymer systems
The recommended antioxidant type and dosage should be confirmed through formulation testing under the customer’s actual processing and aging conditions.
Alternative Evaluation for Existing Antioxidant Systems
Many rubber manufacturers evaluate alternative antioxidant suppliers because of cost pressure, long lead time, supply chain concentration, or the need for additional sourcing options.
J&K Scientific can support alternative evaluation projects by providing:
- Product samples for laboratory testing
- TDS, SDS, COA and specification documents
- Product comparison information when available
- Bulk quotation and packaging options
- Technical communication based on rubber type and application
- Support from R&D screening to scale-up discussion
Products should be evaluated under the customer’s actual formulation, processing conditions, and aging test methods. J&K Scientific does not recommend direct replacement without customer-side validation.
Related Article
Material Additives – Rubber Antioxidants
High-Performance Rubber Synthesis Solutions
Phenolic Antioxidants Selection Guide
Quinoline Antioxidants – Product Selection Guide
Amine Antioxidants and Antiozonants – Product Selection Guide
Liquid Antioxidants for Elastomers, Adhesives and Sealants – Selection Guide
Why Work with J&K Scientific
J&K Scientific supports customers across research, scale-up and industrial supply. For rubber antioxidant and stabilizer applications, we focus on practical formulation support, reliable documentation and flexible supply options.
- Broad chemical product portfolio for R&D and industrial applications
- Support for sample evaluation and bulk supply
- TDS, SDS, COA and specification documentation
- Application-oriented product selection support
- Experience serving laboratories, manufacturers, and industrial customers
- Ability to support both small-scale testing and larger-volume procurement
Request Sample, Technical Documents or Bulk Quotation
To help us recommend a suitable antioxidant or stabilizer option, please share your application information. Our team will review your requirement and provide product, document, sample, or quotation support.
J&K Scientific provides rubber antioxidant and stabilizer solutions for elastomers, industrial rubber goods, adhesives, sealants, and polymer-related applications. We support customers from R&D screening and formulation evaluation to scale-up and bulk supply.
艳 李
