CSM – Chlorosulfonated Polyethylene Rubber
Chlorosulfonated polyethylene rubber (Hypalon type) made by an environmentally friendly solvent process, with a fully saturated chain and –Cl and –SO₂Cl side groups; suits a range of cure systems. Equivalent to Tosoh's TS series.
Key properties
- Mooney viscosity 25–90 (grade dependent)
- Chlorine content 25 ± 2% or 35 ± 2%
- Sulphur content 1 ± 0.2%
- Volatile content < 1.0%
- White to light-yellow flakes
Technical data & grades
| Grade | Grade 1 | Grade 2 | Grade 3 | Grade 4 | Grade 5 | Grade 6 |
|---|---|---|---|---|---|---|
| Mooney viscosity | 41–50 | 51–60 | 61–70 | 71–80 | 81–90 | 25–40 |
| Chlorine content, % | 35 ± 2 | 35 ± 2 | 35 ± 2 | 35 ± 2 | 35 ± 2 | 25 ± 2 |
| Sulphur content, % | 1 ± 0.2 | |||||
| Volatile matter, % | < 1.0 | |||||
Typical values, not a specification. Grade numbers are Chemistis internal references; commercial grade names and the batch certificate of analysis (CoA) are shared at quotation stage.
Applications
Industries
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