Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
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Features & Benefits
- Labeling Claims
Applications & Uses
- Cure Method
- Application Details
ELASTOSIL® R plus 4105/40 US is intended for fabrication of extruded articles that afford high transparency and very good tear resistance values.
Processing
- ELASTOSIL® R plus 4105/40 US may not be cured with peroxides, only with the catalyst batch ELASTOSIL® AUX PT1.
- ELASTOSIL® R plus 4105/40 US and Curing Agent PT 1 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 1 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
- Typical Properties
- Cured Properties
- Note
Properties were obtained after mixing ELASTOSIL® R plus 4105/40 and a Curing Agent PT 1 in a ratio of 100: 1.5; press cured 15 min/ 165 °C, and post-cured 4 hours/200 °C in vented air for cured properties.
| Value | Units | Test Method / Conditions | |
| Pot Life | 6 - 8 | Hours | — |
| Value | Units | Test Method / Conditions | |
| Elongation (at break) | 950 | % | — |
| Shore Hardness A | 40 | — | ASTM D 2240 |
| Specific Gravity (at 25°C) | 1.10 - 1.14 | g/cm³ | — |
| Tear Strength | 28 | kN/m | — |
Regulatory & Compliance
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Packaging & Availability
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