3M 08663 Super Silicone Adhesive/Sealants

3M 08663 Super Silicone Adhesive/Sealants Datasheet
  • Description for 3M 08663 Super Silicone Adhesive/Sealants

    A paste-like, one-component material which cures to a tough, rubbery solid when exposed to moisture in the air.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate ceramic, fabrics, Vinyl, glass, clean metal, many plastics, Rubber, wood
    Industry automotive trim
    Manufacturer 3M
    Chemistry Silicone
    Application Method Spatula
    Cure Method Moisture
    Cure Temperature (°C) 25
    Cure Time (min) Fast, 1,440
    Viscosity (cPs) Non-sagging Paste
    Color Clear
    Ozone Resistance Excellent ozone resistance
    Chemical Resistance Good Water Resistance
    High Temperature Resistance (°C) High Temperature Resistance, 204
    Low Temperature Resistance (°C) -60
    Other Resistance Excellent Extreme resistance
    Density (g/cm³) 8.5 (lbs/Gallon) (Appx.)
  • Technical Data for 3M 08663 Super Silicone Adhesive/Sealants

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste
    • Substrate
    • Industry
      • Other Transportation - drip rails
      • Automotive - automotive trim
      • Other - taillight and sunroof assemblies, Filleting and caulking joints to provide a water and dust barrier, vinyl roof top fabrics
    • Chemistry
    • Application Method
      • Spatula/Trowel - Spatula
      • Other - Wooden paddle
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) Fast, 1,440 Test Method
    Viscosity (cPs) Non-sagging Paste
    Bond Strength
    Tensile Strength (psi) 325
    Material Resistance
    Ozone Resistance Excellent ozone resistance
    Chemical Resistance Good Water Resistance
    Environmental Resistance Excellent weather resistance
    High Temperature Resistance (°C) High Temperature Resistance, 204
    Low Temperature Resistance (°C) -60
    Moisture/Humidity Resistance Excellent moisture resistance
    Other Resistance Excellent Extreme resistance
    Vibration Resistance/Shock Resistance Excellent vibration resistance
    Hardness
    Shore A Hardness 25 Test Method
    Elongation (%) 550 Test Method
    Flexibility Flexible
    Other Properties
    % Solids (%) 100 Test Method
    Density (g/cm³) 8.5 (lbs/Gallon) (Appx.)
    Business Information
    Shelf Life Details Store at room temperature. Rotate stock on a "first-in, first-out" basis. When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 18 months.
    Shelf Life Temperature (°F) 77
    Shelf Life (mon) 18
  • Best Practices for 3M 08663 Super Silicone Adhesive/Sealants

    *See Terms of Use Below

    1. Surface Preparation

      Thoroughly clean surfaces to be bonded. Rubber surfaces should be abraded and wiped clean.

    2. Application

      Apply silicone to area that is to be sealed or bonded. The paste-like consistency makes it easy to tool with a spatula or wooden paddle.

    3. Curing

      Super Silicones cure from the outside in. At conditions of 75°F and 50% RH, they form a tack free skin within 20 minutes. Tooling is not practical after the skin begins forming. Cure time is affected by humidity, degree of confinement, and thickness of the adhesive/sealant bead. Lower humidity and/or temperature will extend the cure time. Higher humidity and/or temperature will reduce the cure time. In applications where the adhesive/sealant is confined during cure, the time required for proper cure is generally lengthened.

  • Comparable Materials for 3M 08663 Super Silicone Adhesive/Sealants

    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C Exposed to air at @ 77°F and 50% RH, 1/8 inch thickness
Cure Time Test Methods
Cure Time Test Method
Fast
1,440 min Exposed to air at @ 77°F and 50% RH, 1/8 inch thickness
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
Elongation Test Methods
Elongation Test Method
550 % Measured on 1/4 inch thick samples cured for 72 Hrs. at 77°F and 50% RH
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
25 Measured on 1/4 inch thick samples cured for 72 Hrs. at 77°F and 50% RH
% Solids Test Methods
% Solids Test Method
100 % Appx.