ELASTOSIL® R 771/70 OH
- Chemical Family
- Silicones
ELASTOSIL® R 771/70 OH is a peroxide-cured high-contrast rubber silicone for the manufacture of flame retardant products, particularly designed for railway applications. The product has been tested according to EN 45545-2 requirement sets R1, R7 (HL2). The color of the rubber base is white.
Properties
- Physical Form
- Liquid
- Paste
Product families
- Silicone Elastomers
Other characteristics
- Brand
- ELASTOSIL® R
- End Uses
- Bellows, Cup Holders
- Features
Flame Retardant, High Consistency, High LOI (Loss On Ignition)
- Polymer Name
- Silicone Elastomer
- Tear Strength
- 18.0 - 18.0 kN/m
- Processing Methods
- Calendering, Compression Molding, Extrusion
- Note
Cure conditions (post-cured 4 h/150°C): 1.5 % ELASTOSIL® AUX Crosslinker E (50% paste of bis-(2,4-dichlorobenzoyl)-peroxide in silicone fluid); 10 min/135°C in press.
- Color
- Beige
- Markets
- Automotive & Transportation
- Building & Construction
- Compliance
The product has been tested according to EN 45545-2 requirement sets R1, R7 (HL2).
- Processing
The raw rubber requires the addition of peroxides for vulcanization at elevated temperatures. A homogeneous incorporation is a must, but please avoid temperatures >30°C along the incorporation process in order to maintain best processing behavior. Pot life is depending on the used peroxide and storage condition.
- Cure
- Chemical Cure
- Technology
- Elastomers
- Quality Standards
Railway European Fire Protection Standard EN 45545-2 HL3
- Specific Features
- Flame retardant
- High LOI
- Material Features
- Flame Retardant
- High Consistency
- High LOI (Loss On Ignition)
- Storage Information
Please store the cardboard boxes in a dry and cool place. Already opened boxes should be closed again to avoid any contamination.
- Chemical Inventories
- AIIC (Australia)
- DSL (Canada)
- ENCS (Japan)
- IECSC (China)
- NZIoC (New Zealand)
- PICCS (Phillipines)
- TCSI (Taiwan)
- TSCA (USA)
Technical data
Table 1 of 1
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Compression Set (Curing Agent E, at 22 hours, 175°C) | 39 | % | DIN ISO 815-1 type B method A |
| Density (Curing Agent E) | 1.48 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break, Curing Agent E) | 270 | % | ISO 37 Type 1 |
| Oxygen Index (LOI, Curing Agent E) | 35 | % | ASTM D 2863 |
| Shore Hardness A (Curing Agent E) | 70 | — | DIN ISO 48-4 |
| Tear Strength (Curing Agent E) | 18 | N/mm | ASTM D 624 B |
| Tensile Strength (Curing Agent E) | 4 | N/mm² | ISO 37 Type 1 |
