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 formula | C7H5NS2.1/2Zn |
|---|---|
| Molecular weight | 397.88 g/mol |
| Form | Solid |
| Color | White to Off-White |
| Melting point | 330 °C |
| Density | 1.7 g/cm³ @ Temp: 25 °C |
| Water solubility | 20.6mg/L at 20°C |
| GHS signal word | Warning · Irritant / harmful, Environmental hazard |
| Grades available | Technical 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.
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.