• Description for Dow Dowsil Q4-2805 Fluorosilicone Channel Sealant

    Superior sealing characteristics under exposure to fuels and oils; non-curing; good tack adhesion; essentially unaffected by shock, vibration and thermal cycling.

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    Brand Dowsil
    Application Type Coat, Sealant, Bond, Putty
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate 2024 Clad aluminium
    Manufacturer Dow
    Chemistry Fluorosilicone
    Cure Method Heat
    Cure Temperature (°C) 90
    Cure Time (min) 1,440
    Viscosity (cPs) Putty
    Color White
    Chemical Resistance Fuel-resistant, Oil-resistant
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) 55
    Density (g/cm³) 1.37
    Key Specifications Mil-Spec (United States Military Standard): MIL-S-85334(AS)
  • Technical Data

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  • Best Practices

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
90°C 7 Day immersion at 80°C, plus 24 hours dry at 90°C
Cure Time Test Methods
Cure Time Test Method
1,440 min 7 Day immersion at 80°C, plus 24 hours dry at 90°C
Density Test Methods
Density Temperature Test Method
1.37 25°C CTM 0022, ASTM D792