Knowde Enhanced TDS
Identification & Functionality
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Features & Benefits
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Applications & Uses
- Cure Method
- Application Details
ELASTOSIL® R plus 4000/60 US materials are intended for fabrication of molded articles that afford high transparency and very good tear resistance values.
Processing
- ELASTOSIL® R plus 4000/60 US may not be cured with peroxides, only with the catalyst batch ELASTOSIL® AUX PT2.
- ELASTOSIL® R plus 4000/60 US and Curing Agent PT 2 are mixed homogeneously on a roll mill in a ratio of 100 : 1.5. Care must be taken to keep the mill and compound as cool as possible during mixing.
- The temperature of the rubber should not exceed 35°C, or risk partial curing and reduced pot life. Crosslinking begins when Curing Agent PT 2 has been added. The rate and degree of crosslinking depends on the storage time and temperature. At 23°C, the mixture has a pot life of about 6-8 hours. This can be extended by storing the catalyzed mixture at a lower temperature.
Properties
- Cured Properties
- Note
Cure Conditions: 1.5% ELASTOSIL® AUX PT 2; Vulcanization: 15 min / 165 °C; post-curing: 4h/200 °C for cured poperties.
| Value | Units | Test Method / Conditions | |
| Compression Set (at 22 hours, 175°C) | 23 | % | DIN ISO 815-B |
| Elongation (at break) | 750 | % | ASTM D 412 |
| Rebound Resilience | 50 | % | DIN 53512 |
| Shore Hardness A | 60 | — | ASTM D 2240 |
| Specific Gravity | 1.16 | g/cm³ | — |
| Tear Strength | 48 | N/mm | ASTM D 624 B |
| Tensile Strength | 9.5 | N/mm² | DIN 53504 S 1 |
Regulatory & Compliance
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