In modern industrial rubber compounding, balancing long processing safety with high-performance physical properties is a constant challenge. Vulcanization Accelerator DCBS (also known as DZ) is the industry’s premier solution for demanding applications. Chemically known as N,N-Dicyclohexyl-2-benzothiazole sulfenamide (CAS No. 4979-32-2), DCBS features a unique molecular structure with bulky cyclohexyl groups that provide maximum steric hindrance. This makes it the most delayed-action sulfenamide available on the market today.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Chemical Name | N,N-Dicyclohexyl-2-benzothiazole sulfenamide |
| CAS Number | 4979-32-2 |
| Molecular Formula | C19H26N2S2 |
| Appearance | Light yellow or off-white powder / oiled powder / granules |
| Initial Melting Point (°C) | ≥ 96.0 °C |
| Loss on Drying (%) | ≤ 0.30% (≤ 0.40% for oiled powder) |
| Ash Content (%) | ≤ 0.30% |
Why Choose Our DCBS (DZ) Accelerator?
- ✓ Unrivaled Scorch Safety: DCBS provides the longest scorch delay among all sulfenamides (longer than CBS, TBBS, and MBS). It ensures safe processing during high-temperature mixing, long extrusion runs, and complex molding.
- ✓ Superior Metal Adhesion: By delaying the initial cross-linking, DCBS allows optimal time for a critical chemical bond to form between the rubber matrix and brass-coated or zinc-coated steel cords.
- ✓ Excellent Anti-Reversion & Aging Properties: Once the curing temperature is reached, DCBS delivers a high cross-link density, ensuring that the finished vulcanizate exhibits high modulus, low compression set, and remarkable heat resistance.
Primary Applications
DCBS is highly recommended for natural rubber (NR), synthetic polyisoprene (IR), styrene-butadiene rubber (SBR), and butadiene rubber (BR) compounds used in:
Tire Manufacturing
Crucial for steel cord wire skim compounds, heavy-duty truck treads, OTR (Off-The-Road) tires, and aircraft tires requiring extreme dynamic stress tolerance.
Industrial Rubber Goods
Perfect for high-tension conveyor belts, reinforced high-pressure hydraulic hoses, V-belts, and marine dock fenders.
Thick-Sectioned Products
Ideal for large industrial shock absorbers, anti-vibration engine mounts, and bridge bearing pads requiring deep heat penetration without surface scorch.
Quality Assurance & Global Compliance
As a global supplier, we understand that supply chain stability, safety regulations, and strict quality controls are vital to your production lines. Our manufacturing facilities are fully optimized to meet rigorous global standards:
- Strict Quality Management: Every batch of our DCBS (DZ) undergoes strict laboratory testing using advanced chromatography and analytical instruments to ensure melting points, ash content, and purity consistently match standard criteria.
- REACH & International Standards: We actively maintain robust compliance protocols, providing complete documentation—including comprehensive Safety Data Sheets (SDS), technical support sheets, and certifications matching regulatory frameworks like EU REACH.
- Custom Packaging & Safe Logistics: To minimize workplace dust and improve automated dosing efficiency, we offer various forms of delivery, including standard multi-layer paper bags (25kg), bulk bags (FIBCs), and oiled treatments based on your process requirements.
Quality Assurance & Global Compliance
As a professional international supplier, we understand that supply chain stability, safety regulations, and strict quality controls are critical to your production lines. Our manufacturing facilities are fully optimized to meet rigorous global standards:
- Strict Quality Management: Every batch of our DCBS (DZ) undergoes strict laboratory testing using advanced chromatography and analytical instruments to ensure melting points, ash content, and purity consistently match standard criteria.
- REACH & International Standards: We actively maintain robust compliance protocols, providing complete documentation—including comprehensive Safety Data Sheets (SDS), technical support sheets, and certifications matching regulatory frameworks like EU REACH.
- Custom Packaging & Safe Logistics: To minimize workplace dust and improve automated dosing efficiency, we offer various forms of delivery, including standard multi-layer paper bags (25kg), bulk bags (FIBCs), and oiled treatments based on your process requirements.
Frequently Asked Questions
What makes DCBS (DZ) different from other sulfenamide accelerators like CBS or TBBS? +
Why is DCBS critical for steel cord skim compounds in tire manufacturing? +
What are the recommended storage conditions and shelf life for DCBS? +
In what physical forms can you supply DCBS (DZ)? +
How does your company ensure regulatory compliance for international shipments? +
⚠ Storage & Handling Guidelines
Proper storage is critical to maintaining the chemical stability and performance integrity of Vulcanization Accelerator DCBS (DZ). Due to its chemical composition as a sulfenamide derivative, exposure to sub-optimal conditions can accelerate moisture absorption or premature degradation.
- • Environmental Controls: Store the product in a cool, dry, and exceptionally well-ventilated warehouse. Keep the storage environment strictly away from direct sunlight, open flames, high-temperature heat sources, and strong acidic materials.
- • Packaging Integrity: Ensure all containers or multi-layer bags remain tightly sealed and undamaged. Partially used bags should be resealed immediately after dispensing to prevent ambient moisture absorption and caking.
- • Shelf Life & Rotation: Under recommended ideal storage conditions, the certified shelf life is 12 months from the date of manufacture. We strongly advise utilizing a First-In, First-Out (FIFO) inventory management system to optimize compounding consistency.
Partner with a Reliable Chemical Supplier
We offer premium-grade Vulcanization Accelerator DCBS (DZ) tailored to meet your rigorous technical demands. Available in standard fine powder, dust-suppressing oiled powder, and automated feeding-ready granule forms to ensure perfect compatibility with your production setup.
