• Description for 3M 218

    A high-performance film backed tape with low profile and high adhesion to achieve excellent paint lines and for other masking and holding applications.

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    Chemical Resistance Chemical Resistance: Excellent solvent resistance
    Application Type Masking
    1 Part or 2 Part 1-Part
    Material Form Fine Line Tape
    Substrate Steel
    Industry Electroplating stop off masking, non-critical, Circuit board conformal coat masking, Circuit board splash mask protection
    Manufacturer 3M
    Chemistry Rubber
    Cure Method Pressure Sensitive
    Color Green, Matte finish
    Key Specifications Mil-Spec (United States Military Standard): T-21595D: Military Specification MIL-T-21595D Amendment 2 Type III.
  • Technical Data for 3M 218

    Overview
    • Chemical Resistance
      • Chemical Resistance : Relative Solvent Resistance - Excellent solvent resistance
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape - Fine Line Tape
    • Substrate
    • Industry
      • Electronics - Electroplating stop off masking, non-critical, Circuit board conformal coat masking, Circuit board splash mask protection
      • Industrial
      • Other - Fine Line paint masking, Can sealing, Solvent resistant masking, Silk screen masking, Lettering, Moisture resistant masking, Labeling (surface writable)
    • Chemistry
      • Other - Rubber
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Green
      • Other - Matte finish
    • Key Specifications
      • Mil-Spec (United States Military Standard) : T-21595D : Amd. 2, Type III - Military Specification MIL-T-21595D Amendment 2 Type III.
    Specifications
    Bond Strength
    General Bond Strength (psi) High, 37 (oz./in.) Test Method
    Tensile Strength (psi) 13 (lbs./in.) Test Method
    Material Resistance
    Moisture/Humidity Resistance excellent moisture resistance
    Hardness
    Elongation (%) 720 Test Method
    Business Information
    Shelf Life Details Storage: Store under normal conditions of 70°F (21°C) and 50% R.H. in the original carton.
    Shelf Life Temperature (°F) 70
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12
  • Best Practices for 3M 218

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  • Comparable Materials for 3M 218

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General Bond Strength Test Methods
General Bond Strength Substrate Test Method
High
37 (oz./in.) Steel ASTM D-3330, width
Tensile Strength Test Methods
Tensile Strength Test Method
13 (lbs./in.) ASTM D-3759, width
Elongation Test Methods
Elongation Test Method
720 % D-3759 (at Break)