Vulkanox MB2/MG (MMBI) – MMBI antioxidant
Mercaptobenzimidazole-type non-staining antioxidant. Moderate on its own, strongly synergistic with phenolic or amine antioxidants against heat ageing; used in peroxide and sulphur cures.
Technical summary
| Manufacturer | LANXESS — Authorised distributor in Turkey: Mete Kimya |
|---|---|
| Product group | Rubber Antioxidants · Antioxidant / antiozonant |
| Chemical name | 4- and 5-methyl-2-mercaptobenzimidazole |
| CAS number | 53988-10-6 |
| Typical dosage | 0.5 – 1.5 phr |
| Form / packaging | Original Lanxess packaging (typically 25 kg); technical and safety data sheets on request |
Applications
- Cable insulation and sheathing
- High-temperature hoses and seals
- EPDM and NBR technical goods
- Peroxide-cured compounds
Benefits
- Strong synergy with phenolic/amine antioxidants
- Non-staining
- Contributes to metal-ion deactivation
Frequently asked questions
What is the difference between MMBI and MBI?
MMBI is the methyl derivative; it disperses better and blooms less than MBI, with a similar activity profile.
Does MMBI affect scorch?
A slight accelerating effect can be seen in sulphur systems; a compound trial is recommended.
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