Description

Zinc Thiozole is a specialized organometallic compound widely recognized for its role as a high-performance vulcanization accelerator in the rubber industry. Its primary value lies in enhancing the efficiency of the sulfur vulcanization process, leading to superior crosslinking and improved physical properties in the final rubber products. This makes it an essential material for manufacturers of tires, industrial hoses, seals, and other demanding elastomeric components who require optimal processing safety, scorch delay, and final product durability.

Application

• Primary vulcanization accelerator for natural rubber (NR), synthetic polyisoprene (IR), and butadiene rubber (BR).
• Used in the production of tire components (e.g., treads, sidewalls) to achieve excellent heat resistance and aging properties.
• Critical for manufacturing technical rubber goods such as conveyor belts, hoses, seals, and gaskets.
• Imparts excellent reversion resistance, making it suitable for thick-section rubber articles cured at high temperatures.
• Often used in secondary accelerator systems in combination with thiazoles or sulfenamides for synergistic effects.
• Provides good scorch safety during processing, allowing for longer mixing and shaping times.

Basic Information

Product Name	Zinc Thiozole
CAS No.	3234-62-6
Molecular Formula	C6H4N2S2Zn
Molecular Weight	241.64 g/mol
Synonyms	Zinc 2-Mercaptobenzothiazole; Zinc MBT; Zinc Salt of 2-Mercaptobenzothiazole; ZMBT; Accelerator ZMBT; Vulcacure ZMBT; 2-Benzothiazolethiol, Zinc Salt (2:1); Zinc Bis(2-benzothiazolethiolate)
EINECS	221-779-7

Quality Control

Our Zinc Thiozole is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to meet the exacting standards of the global rubber industry. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to off-white powder
Identification (IR)	Conforms to standard
Assay (Zinc Thiozole)	≥ 97.0 %
Zinc (Zn) Content	26.5 - 28.5 %
Melting Point	≥ 300 °C (dec.)
Loss on Drying	≤ 1.0 %
Residue on Sieve (100 mesh)	≤ 1.0 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.