Knowde Enhanced TDS
Identification & Functionality
- Additives Included
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
Applications & Uses
- Markets
- Cure Method
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Applications
Profiles & Tubings
- Application Details
ELASTOSIL R plus 4370/50 is suited for the manufacture of 2-composite combinations via pressure free extrusion or coextrusion.
Processing
- ELASTOSIL® R plus 4370 may not be cured with peroxides but only with the platinum catalyst batch ELASTOSIL® AUX Batch PT 1. ELASTOSIL® R plus 4370 and ELASTOSIL® AUX Batch PT 1 are mixed homogeneously on a roll mill in a ratio of 100:1.5.
- A higher catalyst dosage results in a faster curing but a reduced pot life. Care must be taken to keep the compound cool during mixing. A homogeneous incorporation is a must, but the temperature of the rubber should not exceed 30 °C, otherwise there is a risk of scorch.
- The cross linking reaction starts as soon as ELASTOSIL® AUX Batch PT 1 has been added. The rate and degree of crosslinking is dependent on storage time and temperature. At 23 °C the pot life is approximately 24 h. This can be extended by storing the catalyzed mixture at lower temperature.
Properties
- Typical Properties
- Cured Properties
- Properties
- ELASTOSIL® R plus 4370/50 is a self-adhesive grade which adheres to various plastic substrates (e.g. PA, PBT) and metals without tack formation to the mold. The bonding properties can be improved by a post-curing process (e.g. one hour at 100 °C) or by a longer storage at room temperature. Because of the individual surface properties each substrate must be tested before serial production.
- The vulcanizates are transparent and noted for good mechanical and electrical properties. Thanks to addition cure, the vulcanization reaction is significantly faster compared to peroxide curing materials. No peroxide decomposition products are formed during vulcanization. At service temperatures above approx. 180 °C the addition of heat stabilizers is recommended.
- Crosslinking Property: Addition Curing
- Crosslinking Property: Two-component
- Vulcanizate: Self-adhesive
- Note
Cure conditions: 1.5 % ELASTOSIL® AUX Batch PT 1, 15 min / 165 °C in press, non post-cured.
| Value | Units | Test Method / Conditions | |
| Pot Life (at 23°C) | 24 | Hours | — |
| Value | Units | Test Method / Conditions | |
| Compression Set (at 22 hours, 175°C) | 43 | % | DIN ISO 815-1 type B method A |
| Density | 1.14 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 900 | % | ISO 37 Type 1 |
| Rebound Resilience | 55 | % | ISO 4662 |
| Shore Hardness A | 48 | — | DIN ISO 48-4 |
| Tear Strength | 42 | N/mm | ASTM D 624 B |
| Tensile Strength | 10.6 | N/mm² | ISO 37 Type 1 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability
- Packaging Information
This product is available in 20 kg and 540 kg cardboard packaging.
Storage & Handling
- Storage Information
Please store the cardboard boxes in a dry and cool place. Once opened, cardboard boxes should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulfur or phosphorus compounds.