Basic Info.
Product Description
Common extruded rubber
Common grade fumed rubber for extrusion has good extrudability and yellowing resistance. They are applicable to production of various silicone rubber tubes, sealing joint strips, foam strips, shaped strips, wires and cables by extrusion process.
Typical Properties:
| Category | Item | ||||
| Rubber for extrusion | IOTA D9650 | IOTA D9660 | IOTA D9670 | IOTA D9680 | |
| Appearance | Transparent | ||||
| Vulcanization | Hardness Shore A | 50±2 | 60±2 | 70±2 | 80±2 |
| Tensile strength MPa≥ | 8.5 | 8.5 | 8.5 | 8.0 | |
| Elongation at break %≥ | 400 | 400 | 300 | 200 | |
| Breaking set %≤ | 12 | 12 | 12 | 10 | |
| Tear strength B KN/m≥ | 25 | 25 | 25 | 20 | |
| Post-curing | Hardness Shore A | 57±2 | 68±2 | 76±2 | 85±2 |
| Tensile strength MPa≥ | 8.0 | 8.0 | 8.0 | 7.5 | |
| Elongation at break %≥ | 350 | 350 | 260 | 150 | |
| Tear strength B KN/m≥ | 18 | 18 | 18 | 18 | |
| Specific density 25°C g/cm³ | 1.15±0.04 | 1.18±0.04 | 1.22±0.04 | 1.25±0.04 | |
| Compression set 180*22h %≤ | 35 | 35 | 35 | 30 | |
| Resilience %≥ | 50 | 45 | 45 | 40 | |
| Dielectric strength kV/mm ≥ | 20 | 20 | 20 | 20 | |
| Volume resistivity .cm≥ | 1.0 x 10¹ | 1.0 x 10¹ | 1.0 x 10¹ | 1.0 x 10¹ | |
Physical data in the above table is for reference only.
Vulcanization condition: 175ºC× 5Min. Post-curing condition: 200ºC x 4h
Addition of curing agent: liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane: 0.65%.
Advantage:
- Good processability
- Excellent comprehensive physical properties
- Good extrusion property and yellowing resistance
Applications:
- Various silicone rubber tubes, sealing joint strips, wires and cables
Packing & Storage:
- 20kg/ carton lined with plastic bags or sheets.
- The products have a shelf life of 9 months from date of manufacture depending on the shore hardness if stored at room temperature in the originally sealed container.
