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First DCBS (DZ)-80
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- Chemical composition: N,N-Dicyclohexyl-2-benzothiazole sulfenamide
- Complex carrier: EPDM/SBR
- Characteristics: Sulfenamide accelerators for both natural and synthetic rubber; compared to CBS, DCBS offers superior scorch resistance, higher molecular weight, enhanced structural stability, greater thermal decomposition resistance at room temperature, reduced environmental impact, and lower odor. Additionally, vulcanized products exhibit outstanding adhesion properties when in contact with metals such as brass.
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- Product Description
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Pain point you may have faced
You need long scorch safety for large or intricate rubber‑to‑metal parts – thick profiles, wire‑braided hoses, or steel‑cord reinforced tires. Conventional accelerators like CBS give reasonable processing safety, but when summer heat hits or compounds are stored for days, scorch becomes a real risk. And some sulfenamides have a strong, unpleasant odor that lingers in the workplace. Worse, you struggle to get consistent adhesion between rubber and brass‑plated steel wires or brass connectors.Why DCBS‑80 (DZ‑80) is different
First® DCBS‑80 is a sulfenamide accelerator specifically designed for natural and synthetic rubbers. Compared to CBS, DCBS offers significantly better scorch resistance – much longer processing safety. Its higher molecular weight and enhanced structural stability mean it resists thermal decomposition even at room temperature, so compounds stay safe longer. And because it is more stable, it generates lower odor – a much cleaner work environment.What you gain
Superior scorch resistance – ideal for large molds, hot climate production, or prolonged storage.
Higher molecular weight / better stability – less decomposition, more consistent performance.
Lower odor – improves factory working conditions and reduces customer complaints.
Excellent metal adhesion – vulcanizates bond strongly to brass and other metal substrates, critical for steel‑cord belts, brass‑plated hoses, and metal‑inserted parts.
Real‑world result
A manufacturer of brass‑plated steel wire‑reinforced hydraulic hoses had two issues: scorch during extrusion on hot days, and occasional adhesion failures. They switched from CBS to First® DCBS‑80 at the same dosage (1 phr). Scorch time increased by over 50%, allowing them to run the extruder faster without risk. Adhesion pull‑out force improved by 30%, and field failures dropped to near zero. Operators also reported noticeably less odor.Typical specifications
Appearance: light gray to beige granules
Active ingredient: N,N‑dicyclohexyl‑2‑benzothiazole sulfenamide (approx. 80%)
Carrier: EPDM
Recommended dosage: 0.6–1.5 phr (as primary accelerator)
Packaging: 25 kg carton with inner PE liner
Storage: 12 months in unopened packaging, cool and dry
Try DCBS‑80 (DZ‑80) at no cost
If you need longer scorch safety, better adhesion, or just a cleaner‑smelling shop floor, DCBS‑80 is worth a trial. We are happy to send you a free sample – test it on your most demanding metal‑bonding or high‑heat recipe, no obligation.
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http://www.rubberaccelerator.net/
Guozhou Industrial Park, Zhongtang Town, Dongguan, Guangdong, China
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