Zinc Mercaptobenzothiazole (ZMBT)

ZMBT, Zinc 2-mercaptobenzothiazole, Accelerator MZ.

CAS
155-04-4
EC
205-840-3
Sectors
Rubber & Elastomers, Automotive

Zinc Mercaptobenzothiazole (ZMBT), CAS 155-04-4, is an organometallic zinc salt of 2-mercaptobenzothiazole supplied as a Technical Grade white to off-white solid of 97% minimum purity, used as a secondary accelerator in latex dipping and industrial rubber compounding. Boasting 97% min purity, it provides excellent aging resistance and high modulus results.

This light-yellow powder is highly effective when used in combination with dithiocarbamates in latex dipping processes. It helps stabilize the vulcanization rate and prevents pre-cure of the latex during storage.

In industrial rubber compounding, ZMBT serves as a non-staining synergistic accelerator, improving the physical properties of natural rubber and EPDM vulcanizates. It is particularly valued for its low odor and high chemical stability in complex formulations

Typical Properties

Molecular formulaC7H5NS2.1/2Zn
Molecular weight397.88 g/mol
FormSolid
ColorWhite to Off-White
Melting point330 °C
Density1.7 g/cm³ @ Temp: 25 °C
Water solubility20.6mg/L at 20°C
GHS signal wordWarning · Irritant / harmful, Environmental hazard
Grades availableTechnical Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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Zinc Mercaptobenzothiazole (ZMBT)

Applications
  • Latex Acceleration: Primarily used as a secondary accelerator in the production of medical gloves and dipped goods.
  • Industrial Rubber: Employed in weatherstripping and automotive seals to enhance heat aging properties.
  • Adhesives: Functions as a stabilizer and accelerator in pressure-sensitive and contact rubber adhesives.
Safety & Risks

Classified as a Skin Sensitizer and Carc 1B (under certain regulations). Potential carcinogen; handle with Chemical Respirators and Full Protective Suits.

Packaging

25 kg Kraft paper bags with PE liner.