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ELSIL™fluorosilicon rubber compounds
ELSIL™ fluorosilicon rubber compounds are designed for the production of rubber products by molding and extrusion methods. They have high frost resistance (-60 °C), heat resistance (+200 °C), resistance to oils, gasoline and other aggressive media, and low residual compression deformation.
Physical and mechanical properties of mixtures:
| Naming of the indicator | Standard | Typical Properties | |
| ElSil 600/03 FS | ElSil 700/03 FS | ||
| 1. Conditional tensile strength, MPa | ≥6,5 | 7,0 | 7,4 |
| 2. Elongation at break, % | ≥150 | 350 | 205 |
| 3. Hardness, units Shore A | 55-75 | 64 | 74 |
| 4. Relative residual deformation after 30% compression in the air environment at 100 °C for 24 hours, % |
≤22 | 6,3 | 0,53 |
| 5. Weight change after exposure transformer oil GC at 100 °C within 24 hours, % |
≤8 | 5,9 | 3,9 |
| 6. Frost resistance coefficient by area- automatic recovery after compression at a temperature of minus 50 °C |
≥0,25 | 0,29 | 0,33 |
The warranty period of storage is 6 months from the date of manufacture.
The rubber compound intended for the manufacture of long RTI is vulcanized for 10 minutes at a temperature of (120±2)°C. The second stage of vulcanization is carried out at a temperature of (200±5) °C for 4 hours.
The mixture intended for the manufacture of molded RTI is vulcanized for 10 minutes at a temperature of (170±2)°C. The second stage of vulcanization is carried out at a temperature of (200±5)°C for 4 hours.
When manufacturing products by butt vulcanization, the rubber compound is applied to a section of a dry, fat-free surface. The ends of the profile are joined together and kept in a mold heated to the desired temperature (150-170°C) until the rubber mixture is completely vulcanized (10-30 minutes). In each individual case, preliminary tests are recommended to assess the adhesive strength.
Background information:
| Naming of the indicator | Typical Properties | |
| ElSil 600/03 FS | ElSil 700/03 FS | |
| 1. After holding at 250 °C for 72 hours | ||
| - conditional tensile strength, MPa | 3,9 | 3,6 |
| — elongation at break, % | 210 | 110 |
| - hardness, units. Shore A | 65 | 75 |
| 2. After holding at 230°C for 72 hours | ||
| - conditional tensile strength, MPa | — | 6,0 |
| — elongation at break, % | — | 170 |
| - hardness, units. Shore A | — | 76 |
| 3. Change in the mass of the sample after exposure to aggressive media, % | ||
| - SWR-2 at 100°C for 24 hours | 1,7 | — |
| - Galosha petrol at 20°C for 24 hours | 12 | — |
| - AI-92 gasoline at 20°C for 24 hours | 17,6 | — |
| - GC transformer oil at 115 °C for 24 hours | 6,9 | 4,5 |
| - TC-1 at 150 °C for 24 hours | 16 | 16,5 |
| 4. Relative residual deformation after compression by 20% in an air environment at 200 °C for 24 hours, % |
26,1 | 10,5 |
| 5. Temperature limit of brittleness, °C | minus 64 | minus 64 |
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