Cobalt Salt Adhesive
Cobalt Salt Adhesive Manufacturer & Supplier for Rubber-to-Metal Bonding
Cobalt salt adhesion promoters act as vital interfacial agents in rubber compounding, establishing durable chemical bonds between sulfur-vulcanized rubber and brass-coated steel cords or synthetic fabrics. During high-temperature vulcanization, cobalt ions migrate to the interface, reacting with sulfur and copper-zinc components on steel cord surfaces to form a stable sulfide interlayer. This prevents moisture degradation and dynamic delamination under high mechanical stress.
Our production facility operates under strict ISO 9001 and ISO 14001 standards, utilizing closed-loop reaction kettles and automated filtration systems to ensure precise metal assay control and minimal volatile impurities. Each production batch undergoes Inductively Coupled Plasma (ICP) elemental analysis and Mooney scorch testing before release.
Technical Specifications
The following table summarizes the published Cobalt Stearate specifications.
|
Parameter |
Specification |
|
Product Name |
Cobalt Stearate |
|
Chemical Name |
Cobalt Octadecanoate |
|
Chemical Formula |
C36H70CoO4 |
|
Appearance |
Blue-purple granules or small spherical solids |
|
Organic Acid Content |
85–90% |
|
Cobalt Content |
9.60 ± 0.6% |
|
Heating Loss |
≤1.5% at 105°C |
|
Physical Form |
Granular solid |
Additional parameters, including melting point, particle size, and applicable test methods, should be confirmed against the current product specification.
Applications
Tire Manufacturing
Used in rubber compounds for steel cord reinforced tires, where the bonding interface between rubber and metal reinforcement is an important part of tire construction.
Steel Cord Conveyor Belts
Applicable to rubber compounds used in steel cord conveyor belt production, where reinforcement adhesion is relevant to the performance of the belt structure.
Industrial Rubber Products
Used in selected rubber-to-metal bonding formulations for reinforced rubber hoses and other industrial rubber components.
For rubber manufacturers, consistent chemical composition and cobalt content are important when evaluating an adhesion promoter.
Key quality considerations include:
- Cobalt Content: The published specification provides a cobalt content of 9.60 ± 0.6%.
- Chemical Composition: Organic acid content is specified at 85–90%.
- Physical Appearance: Blue-purple granular material for product identification and handling.
- Heating Loss: The specified limit is ≤1.5% at 105°C.
- Batch Consistency: Buyers can request batch-specific COA documentation to compare delivered material against agreed specifications.
Manufacturing & Quality Infrastructure
- Synthesis Control: Automated temperature-regulated reactors prevent overheating and ensure consistent fatty acid/naphthenic acid salt precipitation.
- Analytical Testing: In-house laboratory equipped with Agilent ICP-OES spectrometers for exact cobalt assay determination, differential scanning calorimetry (DSC) for melting behavior, and oscillating disc rheometers (ODR) for cure characteristic verification.
- Regulatory Compliance: Manufactured in alignment with EU REACH pre-registration requirements, RoHS directives, and TSCA inventory standards.
Packaging & Supply
Standard Packaging
Solid grades: 25 kg multi-layer kraft paper bags with inner polyethylene liners; palletized and shrink-wrapped (750 kg / wooden pallet).
Liquid grades
200 kg galvanized steel drums or 1000 kg intermediate bulk containers (IBC).
Storage Conditions
Store in a cool, dry, well-ventilated area away from direct sunlight, open flames, and strong oxidizing agents. Shelf life is 12 months from the manufacturing date in unopened original containers.
Logistics & Lead Time
Regular grades maintained in regional warehouse stock. Standard container shipments dispatched within 14 - 21 days from order confirmation.
FAQ
Request a Cobalt Stearate Quotation
Looking for a Cobalt Salt Adhesion Promoter for tire manufacturing or industrial rubber compounding?
Send Heze Great Bridge Chemical your required cobalt content, application, estimated order quantity, and technical specifications.
We can help confirm product availability, technical documentation, packaging details, and supply arrangements.
Contact Us for Cobalt Stearate Specifications, Samples, and Bulk Supply Pricing.
Email: export@greatbridge-chem.com
Tel: +86-530-5399496
WhatsApp: 86 158 0675 1555
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With abundant experience, we are one of the most professional cobalt salt adhesive manufacturers and suppliers in China. We warmly welcome you to buy high quality cobalt salt adhesive in stock here and get pricelist from our factory. Good service and reasonable price are available.
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