• Description for 3M 8402

    A film tape with a silicone adhesive for composite bonding and splicing of many silicone coated papers and films.

    *See Terms of Use Below

    Application Type Bond, Masking
    1 Part or 2 Part 1 Part
    Material Form Tape
    Substrate Metal, Silicone coated papers, Steel
    Industry Splicing of many silicone coated papers, Splicing of many silicone coated films, Splicing of silicone, Splicing of silicone papers, Splicing of films subject to high temperatures
    Manufacturer 3M
    Chemistry Silicone
    Cure Method Pressure Sensitive
    Color Translucent green, Translucent green
    Chemical Resistance Chemical resistance
    High Temperature Resistance (°C) Higher heat resistance, 177, Thermal resistant
    Low Temperature Resistance (°C) -50
  • Technical Data for 3M 8402

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape
    • Substrate
    • Industry
      • Industrial - Paint mask
      • Splicing - Splicing of silicone, Splicing of films subject to high temperatures, Splicing of silicone papers, Splicing of many silicone coated papers, Splicing of many silicone coated films
      • Other - Composite bonding, Masking edges of overlap seams in metal bonding process where the excess epoxy (“flash”) flows onto the tape. Clean-up is complete when the tape is removed, Protective overall mask on panels subject to mild caustic or acid bath etching and to prevent scratches during handling prior to bonding operations, Holding of parts or vacuum bags during bonding operation, Mask for metal in acid or caustic chemical milling baths
    • Chemistry
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Translucent - Translucent green
      • Green - Translucent green
    Specifications
    Cure Specs
    Application Temperature (°F) 351
    Bond Strength
    General Bond Strength (psi) 24 (oz./in.) Test Method
    Tensile Strength (psi) 33 (lbs./in.), 25 (lbs./in.) Test Method
    Material Resistance
    Abrasion Resistance Abrasion resistance
    Chemical Resistance Chemical resistance
    High Temperature Resistance (°C) Higher heat resistance, 177, Thermal resistant
    Low Temperature Resistance (°C) -50
    Hardness
    Elongation (%) 100 Test Method
    Flexibility Retains flexibility from -60 to 350 (F)
    Business Information
    Shelf Life Details Storage: Store under normal conditions of 70°F (21°C) and 50% R.H. in the original carton., Store under normal conditions of 70°F (21°C) and 50% R.H. in the original carton.
    Shelf Life Temperature (°F) 70, 70
    Shelf Life Type From date of manufacture, From date of manufacture
    Shelf Life (mon) 12, 24
  • Best Practices for 3M 8402

    *See Terms of Use Below

    1. Removal

      Easy and clean removability

  • Comparable Materials for 3M 8402

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Tensile Strength Test Methods
Tensile Strength Test Method
33 (lbs./in.) ASTM D-3759, at break, width
25 (lbs./in.) ASTM D-3759, at break, width
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
24 (oz./in.) Steel ASTM D-3330, width
Elongation Test Methods
Elongation Test Method
100 % D-3759 (at Break)