Applications of 2,2'-Dithiobis(Benzothiazole) in Industrial Manufacturing

2,2'-Dithiobis(Benzothiazole) serves as a critical functional additive in several industrial rubber and polymer manufacturing sectors. As an experienced chemical raw material producer, we support these industries with direct supply, technical know-how, and consistent compliance with international quality benchmarks.

1. Tire and Automotive Rubber Compounding

Rubber processors use 2,2'-Dithiobis(Benzothiazole) as a key vulcanization accelerator in the production of automotive tires, conveyor belts, and vibration isolators. In complex tire compounding, it supports controlled cross-linking of elastomers, optimizing curing kinetics and facilitating both high modulus and wear resistance characteristics required for modern treads and sidewalls. Quality control integrates online assessments of cure rate, extrusion profiles, and end-elasticity, ensuring high throughput with consistency.

Industry compliance standards

• ISO 9001:2015 Quality Management
• TS 16949 Automotive Quality Management
• REACH Annex XVII (EU) Chemical Restrictions
• US EPA Toxic Substances Control Act (TSCA)

Typical usage ratio

• 0.2% to 1.0% by weight of total rubber formulation, adjusted for natural vs. synthetic rubber, desired cure profile, and target mechanical properties

Downstream process integration

• Mixing stage as part of accelerator blends
• Batch or continuous mill addition before feed to vulcanization presses
• In situ combination with sulfenamide or thiazole accelerators

Final product types

• Radial passenger car tires
• Truck/bus tires
• Offroad heavy duty tire casings
• Rubber conveyor belts for mining and logistics

2. Industrial Rubber Hose & Seals Manufacturing

Manufacturers of hydraulic hoses, fuel lines, and gasket materials employ this material to achieve precise vulcanization control and enhance heat-aging stability. Its chemical structure enables delayed action during heating and improved reversion resistance, critical for high-pressure and high-temperature finished products. Controlled addition in the internal mixer improves batch repeatability, while downstream extrusion and pre-forming demand strict ratio control for each polymer system.

Industry compliance standards

• ASTM D2000 Rubber Material Specification
• ISO 14001 Environmental Management
• SAE J20 (Automobile Coolant Hose)
• RoHS Directive 2011/65/EU (for restricted substances)

Typical usage ratio

• 0.3% to 0.8% by weight, customized to compound composition, required elasticity, and thermal resistance

Downstream process integration

• Added during Banbury mixing with black fillers and plasticizers
• Direct extrusion into hose preforms before tunnel vulcanization
• Incorporated into pre-cure sheet stocks for die-cut gasket lines

Final product types

• High-pressure hydraulic hoses
• Fuel and oil-resistant hoses
• Engine gaskets and O-rings
• Industrial sealing strips

3. Latex Rubber Goods Production

Producers of dipped latex medical and industrial goods rely on this accelerator for consistent, rapid vulcanization at low temperatures. The material’s dispersibility in aqueous media enables homogeneous distribution in latex compounding tanks, supporting the manufacture of thin-walled, tear-resistant films. Real-time monitoring of cure rate and cross-link density in continuous dipping processes assures uniform wall thickness and mechanical performance for sensitive applications.

Industry compliance standards

• ISO 4074 (Condoms – Requirements and test methods)
• EN 455 (Medical Gloves for Single Use)
• FDA 21 CFR 177.2600 Rubber Articles for Repeated Use
• GMP for medical device manufacturing (ISO 13485)

Typical usage ratio

• 0.1% to 0.5% by latex weight, adjusted to cure conditions, article thickness, and regulatory migration limits

Downstream process integration

• Inline latex compounding with controlled temperature agitation
• Feed into drum dipping baths prior to pre-vulcanization
• Batch adjustment before final molding and finishing

Final product types

• Disposable surgical gloves
• Medical and household examination gloves
• Latex balloons and catheters
• Thin-walled laboratory tubing

4. Rubber Footwear and Sheet Goods Fabrication

Footwear, mat, and gasket manufacturers select this accelerator to control scorch safety and achieve uniform vulcanization through thick or multi-layered structures. In calendered flooring, shoe soles, and industrial matting, it works in tandem with secondary accelerators to balance fast throughput with dimensional stability. In-line process control tests for tensile strength, compression set, and tear properties ensure product conformity prior to die cutting or press molding.

Industry compliance standards

• ISO 4643 Rubber Footwear: General requirements
• EN 20345 Personal Protective Equipment – Safety footwear
• ASTM D1056 Flexible Cellular Materials – Sponge or Expanded Rubber
• REACH SVHC compliance (Substances of Very High Concern)

Typical usage ratio

• 0.2% to 0.7% by batch weight, depending on blend thickness, polymer base (NR/SBR/CR), and desired modulus

Downstream process integration

• Introduced during internal mixer blending with colorants and mineral fillers
• Added just before final sheet calendering or preparation of molding compounds
• Monitored via rheometer for process adjustment

Final product types

• Protective and work footwear soles
• Resilient floor and table mats
• Anti-slip rubber sheet materials
• Rubber blocks for footwear heels and midsoles