1. POLYGRAND Topren CSM grades and specs
| GRADE | ||||
| CSM503 | CSM603 | CSM703 | CSM803 | |
| Clorine content % | 35±1.5 | 35±1.5 | 35±1.5 | 35±1.5 |
| Sulphur content % | 1.0~1.5 | 1.0~1.5 | 1.0~1.5 | 1.0~1.5 |
| Volatile matter % | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
| Mooney viscosity ML（1+4）100℃ |
55±5 | 65±5 | 75±5 | 90±5 |
| Tensile strength MPa | ≥20 | ≥20 | ≥23 | ≥25 |
| Elongation at break % | ≥250 | ≥250 | ≥250 | ≥250 |
2. Similar CSM grades from other suppliers
| POLYGRAND CHEMICAL | TOSOH | DUPONT | JIHUA | Application |
|---|---|---|---|---|
| CSM-503 (chlorine content 35%, mooney viscosity 50-60) |
TS-530 (chlorine content 35%, mooney viscosity 56) | Hypalon40 (chlorine content 35%, mooney viscosity 56) | CSM40M（CSM3305）(chlorine content 33-37%, mooney viscosity 51-60) | Rubber hoses for automobile, special purpose rubber hoses, air seal and oil seal products, electric wires and cables, compounding, special purpose ruber rolls, special purpose rubberized fabric, etc. |
| CSM-603 (chlorine content 35%, mooney viscosity 60-70) | – | – | CSM40H（CSM3306）(chlorine content 33-37%, mooney viscosity 61-70) | |
| CSM-703 (chlorine content 35%,mooney viscosity 70-80) | – | – | CSM40H（CSM3307）(chlorine content 33-37%, mooney viscosity 71-80) | |
| CSM-803 (chlorine content 35%, mooney viscosity 85-95) | TS-830 (chlorine content 36%, mooney viscosity 90) | Hypalon4085 (chlorine content 35%, mooney viscosity 94) | CSM40H（CSM3308）(chlorine content 33-37%, mooney viscosity 81-90) |