• Description for 3M 3326

    An aluminum foil backing with a pressure sensitive acrylic adhesive and paper liner.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form tape
    Substrate Paper, Steel
    Manufacturer 3M
    Chemistry Acrylic
    Cure Method Pressure Sensitive
    Color Silver Printed
    High Temperature Resistance (°C) high temperature resistance, 121
    Low Temperature Resistance (°C) -29
    Key Specifications UL181A-P; UL181B-FX; UL-723; UL181
  • Technical Data for 3M 3326

    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape
    • Substrate
    • Industry
      • Other - Joining and sealing fiberglass duct board joints and seams., Joining and sealing flexible air duct seams and connections., Use in applications to preserve vapor barrier integrity
    • Chemistry
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Gray - Silver Printed
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - UL181A-P; UL181B-FX; UL-723; UL181
    Cure Specs
    Application Temperature (°F) 10 to 250
    Bond Strength
    General Bond Strength (psi) 70 (oz./in.) Test Method
    Shear Strength (psi) Excellent
    Tensile Strength (psi) 25 (lbs./in.) Test Method
    Material Resistance
    High Temperature Resistance (°C) high temperature resistance, 121
    Low Temperature Resistance (°C) -29
    Elongation (%) 4 Test Method
    Business Information
    Shelf Life Details Storage: Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton.
    Shelf Life Temperature (°F) 140 to 176
    Shelf Life Type From date of manufacture.
    Shelf Life (mon) 12
  • Best Practices for 3M 3326

    *See Terms of Use Below

    1. Design

      Designed for maximum adhesion over clean, dry surfaces. For best results, always use an application squeegee.

  • Comparable Materials for 3M 3326

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Tensile Strength Test Methods
Tensile Strength Test Method
25 (lbs./in.) ASTM D-3759, width
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
70 (oz./in.) Steel ASTM D-3330, width
Elongation Test Methods
Elongation Test Method
4 % D-3759 (at Break)