Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Special Features
Low compression set
Applications & Uses
- Cure Method
- Plastics & Elastomers End Uses
- Applications
- Dairy & Food Applications
- Molded Parts
- Application Details
The requirements of the spin casting disk largely depend on different model shapes. Casting models with deep undercuts may require blends of ELASTOSIL® R 755/40, softer or higher tear grades alternative with ELASTOSIL® EL AUX HND Batch. Thus it is necessary to prepare the best suitable disk quality for each application. ELASTOSIL® R 755/40 has been developed specifically for a high load of fillers for preparing compounds for spin-casting disks.
Processing
ELASTOSIL® R 755/40 OH is a silicone rubber base for spin casting disks. Usually ELASTOSIL® R 755/40 OH is mixed with 80 – 100 parts ground quartz and 1.5 parts ELASTOSIL® AUX crosslinker C1 (Dicumylperoxide).
Aging properties (non-post-cured):- 100.0 parts R 755/40
- 80.0 parts Quartz
- Hardness ± 5 Initial value 65
- 30 min, 350 °C 53
- 60 min, 350 °C 51
- 180 min, 350 °C 62
Properties
- Cured Properties
- Properties
- Extremely high network density.
- Excellent resistance against liquid alloys in spincasting applications.
- Accepts high amounts of inactive filler.
- Note
Cure conditions: 0.7 % ELASTOSIL® AUX Crosslinker C1 (Dicumylperoxide), 15 min / 165 °C in press.
| Value | Units | Test Method / Conditions | |
| Compression Set (Curing Agent C1, at 22 hours, 175°C) | 6 | % | DIN ISO 815-1 type B method A |
| Density (Curing Agent C1) | 1.11 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break, Curing Agent C1) | 340 | % | ISO 37 Type 1 |
| Rebound Resilience (Curing Agent C1) | 65 | % | ISO 4662 |
| Shore Hardness A (Curing Agent C1) | 44 | — | DIN ISO 48-4 |
| Tear Strength (Curing Agent C1) | 9 | N/mm | ASTM D 624 B |
| Tensile Strength (Curing Agent C1) | 4.2 | 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. Already opened boxes should be closed again to avoid any contamination.