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Aerospace

Materials used in the aerospace industry have to withstand often adverse operating conditions on a continuous basis. Low pressures, high and low temperatures, rapid changes of temperature and pressure, intense radiation – WACKER silicones can withstand all of these because their property profile is tailored to each application.

Benefits:

  • Minimal outgassing rates and hence no delamination under outer-space conditions
  • High radiation resistance
  • Full retention of elasticity down to the glass transition temperature at below -100 °C
  • Dissipation of thermomechanical stress by virtue of silicones’ characteristic flexibility

Applications:

  • Lamination of the solar assembly to the support structure for the solar array wing
  • Antistatic bonding of satellite components that are particularly susceptible to electrostatic charging

Benefits:

  • Outstanding permanent flexibility
  • Specialty grades are thermally stable from -30 to +250 °C
  • Exceptional resistance to fluids, the elements, and UV radiation
  • Very good molding and surface reproduction

Applications:

  • Sealing profiles for aircraft windows
  • Abradable coating in jet engines
  • Bonded joints and seals in the sanitary, galley and cabin areas
  • Tool and auxiliary material in the production of composites for ventilation systems and the cabin interior

Produktempfehlungen

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Produkte
Technische Daten
Produktmerkmale
dynamische Viskosität Weiterreißwiderstand Härte Shore A Reißfestigkeit Reißdehnung Beständigkeit Regulatorisch Vulkanisat
ELASTOSIL® S 692 A/B 70000 mPa·s[1] 70000 mPa·s[1] 3.0 N/mm[4] 3.0 N/mm[4] 35[5] 35[5] 1.5 N/mm²[6] 1.5 N/mm²[6] 200 %[8] 200 %[8] tieftemperaturflexibel niedriger Flüchtigengehalt elektrisch leitfähig
ELASTOSIL® S 699 A/B 180000 mPa·s[2] 180000 mPa·s[2] 9.0 N/mm[4] 9.0 N/mm[4] - - 1.8 N/mm²[6] 1.8 N/mm²[6] 180 %[8] 180 %[8] - - -
WACKER® RTV-S 691 A/B 55000.0 - 70000.0 mPa·s[3] 55000.0 - 70000.0 mPa·s[3] - - 50 - 60[5] 50 - 60[5] 4.0 - 6.0 N/mm²[7] 4.0 - 6.0 N/mm²[7] 100 - 160 %[9] 100 - 160 %[9] hitzebeständig, tieftemperaturflexibel niedriger Flüchtigengehalt -
Legend
[1] dynamische Viskosität Spindle 5, 2.5 rpm | Brookfield,  [2] dynamische Viskosität (D = 0,5 1/s) | 25 °C | 0,5 1/s | DIN EN ISO 3219,  [3] dynamische Viskosität spindle 5, 2.5 rpm | 23,0 °C | Brookfield,  [4] Weiterreißwiderstand | ASTM D 624 B,  [5] Härte Shore A | DIN ISO 48-4,  [6] Reißfestigkeit | ISO 37 Type 1,  [7] Reißfestigkeit | ISO 37 | ISO 37 Type 3,  [8] Reißdehnung | ISO 37 Type 1,  [9] Reißdehnung | ISO 37 | ISO 37 Type 3,  [] Geeignet,  [] Gut geeignet,  [] Ideal geeignet