3M 08662 Super Silicone Adhesive/Sealants Datasheet 3M 08662 Super Silicone Adhesive/Sealants

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  • Description for 3M 08662 Super Silicone Adhesive/Sealants

    A paste-like, one-component material which cures to a tough, rubbery solid when exposed to moisture in the air. It will adhere to clean metal, glass, wood, ceramic, natural and synthetic fiber, painted surfaces, and many plastics.

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    Chemical Resistance Chemical Resistance: Fluid Resistance: Good Water Resistance
    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 Filleting joints to provide a water and dust barrier, Automotive trim, Caulking joints to provide a water and dust barrier
    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 Black
    Ozone Resistance Excellent ozone 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 08662 Super Silicone Adhesive/Sealants

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    Overview
    • Chemical Resistance
      • Chemical Resistance : Fluid Resistance : Water Resistance - Good Water Resistance
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Paste
    • Substrate
    • Industry
      • Other Transportation - Drip rails
      • Automotive - Automotive trim
      • Joints - Filleting joints to provide a water and dust barrier, Caulking joints to provide a water and dust barrier
      • Other - Taillight and sunroof assemblies, Vinyl roof top fabrics
    • Chemistry
    • Application Method
      • Spatula/Trowel - Spatula
      • Other - Wooden paddle
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Black
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) Fast, 1,440 Test Method
    Viscosity (cPs) Non-sagging Paste
    Tack Free Time (min) 10 to 20 Test Method
    Bond Strength
    Tensile Strength (psi) 325
    Material Resistance
    Ozone Resistance Excellent ozone 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) Room temperature
    Shelf Life (mon) 18

  • Best Practices for 3M 08662 Super Silicone Adhesive/Sealants

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    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 08662 Super Silicone Adhesive/Sealants

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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
10 to 20 min 25°C Exposed to air at @ 77°F and 50% RH
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.