Accelerator CZ (also called CBS), CAS 95-33-0 (N-cyclohexyl-2-benzothiazolesulfenamide), is a sulfenamide (delayed-action) rubber accelerator. It gives a long scorch safety during processing and a fast cure, and is one of the most widely used accelerators for tyres and technical rubber goods. PolyBlueChem supplies it to the specification below with per-batch COA and SDS.
Specifications
| Parameter | Specification |
|---|---|
| Appearance | Greyish white or light yellow powder |
| Initial melting point | 98 °C min |
| Heating loss | 0.30% max |
| Ash | 0.30% max |
| Sieve residue (100 mesh) | 0.1% max |
A full specification sheet and a certificate of analysis (COA) for each batch are available on request.
Basic Information
| CAS number | 95-33-0 |
| Synonyms | Accelerator CZ; CBS; N-cyclohexyl-2-benzothiazolesulfenamide; N-cyclohexylbenzothiazole-2-sulfenamide |
| Molecular formula | C13H16N2S2 |
| Molecular weight | 264.4 g/mol |
| Type | Sulfenamide accelerator (delayed action / post-vulcanisation) |
Applications
- Tyres – tread, carcass and sidewall compounds; the standard sulfenamide accelerator.
- Technical rubber goods – belts, hoses, seals and moulded parts.
- General rubber – NR, SBR, BR and blends, usually activated with zinc oxide and stearic acid.
- Latex and adhesives – where a delayed-action cure is wanted.
As a sulfenamide, CZ gives good scorch safety at processing temperatures and a fast, efficient cure; it is often used with a secondary accelerator or activator to fine-tune the cure.
Packaging and documentation
- 25 kg PP/PE bags or fibre drums; keep sealed, cool and dry.
- Per-batch certificate of analysis (COA) and safety data sheet (SDS).
PolyBlueChem supplies Accelerator CZ (CBS, CAS 95-33-0) to this specification, with per-batch COA and SDS, competitive pricing on bulk volumes and FOB/CIF delivery. Contact us with your tonnage and delivery port for a quotation.
