3M 444 Datasheet 3M 444

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  • Description for 3M 444

    High tack acrylic adhesive with densified kraft liner

    *See Terms of Use Below

    Chemical Resistance Chemical Resistance: Medium-Low solvent resistance
    Application Type Bond, Laminate, Gaskets
    1 Part or 2 Part 1-Part
    Material Form Double-Coated Tape
    Substrate Fabrics, Foil, Paper, ABS, Polycarbonate, Polyester, Polypropylene, Steel, Stainless Steel, Foam, Metal, Plastic
    Industry Diagnostic test strips, Medical, Nameplates, Splicing of film, Cell phone lens, Photo, Posters, Laptops
    Manufacturer 3M
    Chemistry Acrylic, Medium-firm Acrylic
    Cure Method Pressure sensitive
    Application Temperature (°F) 70 to 100
    Color White
    High Temperature Resistance (°C) 121, 82
    Density (g/cm³) 1.012 (g/cc)

  • Technical Data for 3M 444

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    Overview
    • Chemical Resistance
      • Chemical Resistance : Relative Solvent Resistance - Medium-Low solvent resistance
    • Application Type
      • Laminate
      • Gasketing - Gaskets
      • Adhesive - Bond
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape - Double-Coated Tape
    • Substrate
    • Industry
      • Storage & Graphics - Laptops
      • Smartphone and Tablet - Cell phone lens
      • Electronics - Diagnostic test strips, Photo
      • Splicing - Splicing of film
      • Printing and Graphics - Nameplates, Posters
      • Medical
    • Chemistry
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure sensitive
    • Color
      • White
    Specifications
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    General Bond Strength (psi) High
    Peel Strength (piw) 32 (Oz./in.), 61 (Oz./in.), 86 (Oz./in.), 115 (Oz./in.), 55 (Oz./in.), 64 (Oz./in.), 61 (Oz./in.), 43 (Oz./in.) Test Method
    Shear Strength (psi) 1000 (grams), 500 (grams) Test Method
    Material Resistance
    UV Resistance Medium
    High Temperature Resistance (°C) 121, 82 Test Method
    Conductivity
    Insulation Resistance (O) Insulation resistance
    Other Properties
    Density (g/cm³) 1.012 (g/cc)
    Business Information
    Shelf Life Details Store in original carton at 70°F (21°C) and 50% relative humidity.;If stored under proper conditions, product retains its performance and properties for two years from date of manufacture.
    Shelf Life Temperature (°F) 70
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24

  • Best Practices for 3M 444

    *See Terms of Use Below

    1. Surface Preparation

      To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Some typical surface cleaning solvents are isopropyl alcohol or heptane.*

      *Note: Carefully read and follow the manufacturer’s precautions and directions for use when working with solvents.

    2. Application

      Bond strength is dependent upon the amount of adhesive-to-surface contact developed.Firm application pressure helps develop better adhesive contact and improves bond strength.

      Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape application to surfaces at temperatures below 50°F (10°C) is not recommended because the adhesive becomes too firm to adhere readily. However, once properly applied, low temperature holding is generally satisfactory.

  • Comparable Materials for 3M 444

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    Spec Engine® Results

    • 3M
      VHB Tape 4646(3M)

      • Dark gray • Interior bonding applications • Exterior bonding applications • Replace spot welds • Excellent solvent resistance. • Replace liquid adhesives • Replace rivets • High temperature resistance • UL 746C • Excellent durability.

    • 3M
      4932(3M)

      White, closed-cell acrylic foam carrier • Good adhesion to polypropylene and many powder paints• Apply as low as 50°F (10°C)

    • 3M
      4952(3M)

      White, closed-cell acrylic foam carrier • Good adhesion to polypropylene and many powder paints• Apply as low as 50°F (10°C)

    • Compare All
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Peel Strength Test Methods
Peel Strength Type Substrate Test Time Test Temperature Test Method
32 (Oz./in.) 90° Peel strength Stainless steel 15 min 25°C Adhesion to stainless steel ASTM D3330 - 90 degree
61 (Oz./in.) 90° Peel strength Stainless steel 4,320 min 25°C Adhesion to stainless steel ASTM D3330 - 90 degree
86 (Oz./in.) 90° Peel strength Stainless steel 4,320 min 70°C Adhesion to stainless steel ASTM D3330 - 90 degree
115 (Oz./in.) 180° Peel strength 4,320 min 25°C ASTM D3330 - 180 degree, 2 mil al foil
55 (Oz./in.) 90° Peel strength ABS 4,320 min 25°C Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil
64 (Oz./in.) 90° Peel strength Polycarbonate 4,320 min 25°C Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil
61 (Oz./in.) 90° Peel strength Polyester 4,320 min 25°C Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil
43 (Oz./in.) 90° Peel strength Polypropylene 4,320 min 25°C Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil
Shear Strength Test Methods
Shear Strength Test Time Test Temperature Test Method
1000 (grams) 48,780 sec 22°C ASTM D3654 modified -(.5 inch2 sample size)
500 (grams) 180 sec 70°C ASTM D3654 modified - (.5 inch2 sample size)
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
121°C Relative High Temperature Operating Ranges: Short Term (minutes, hours)
82°C Relative High Temperature Operating Ranges: Long Term (days, weeks)