Rubber for the manufacture of insulating and fixed joints of transformers and similar electrical facilities, it is resistant to transformer oils and possesses high dielectric performance.
Performance options
- Universal
- With increased resistance to ozone aging
It is possible to supply both a semi-finished product for further independent cutting of gaskets and finished products according to customer drawings.
Technical specifications
| Indicator | Universal rubber | With increased resistance to ozone aging |
| Operating temperature range | From -60 to +100оС | From -55 to +50оС |
| Hardness (Shore) | 55-65 | 70-80 |
| Mass change after exposure to transformer oil at + 1000C for 24 hours (%) | From -3 to +5 | – |
| Nominal tensile strength, MPa (kgs/cm2), not less | 6,4 (65) | 7,8 (80) |
| Elongation at break, %, not less | 200 | 160 |
| Rate of set under compression in air for 24 hours,%, not more than: At 500C under 20% compression At 1000C under 30% compression |
– 25 |
35 – |
| Coefficient of frost resistance for elastic recovery after compression, not less than: At a temperature of -45оС At a temperature of -50оС |
– 0,25 |
0,2 – |