3M 666

3M 666 Datasheet
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  • Description for 3M 666

    Double coated tape that is ideal for applications where one or both parts need to be repositioned or removed easily.

    *See Terms of Use Below

    Application Type Bond, Removable/changeable foam gasketing
    1 Part or 2 Part 1 Part
    Material Form Double coated Tape
    Substrate Foam, Paper, Plastic, Steel
    Industry Foils, Point of purchase displays
    Manufacturer 3M
    Chemistry Plastic
    Cure Method Pressure Sensitive
    Color Clear
    Relative Solvent Resistance Chemical Resistance: Good
    High Temperature Resistance (°C) 52

  • Technical Data for 3M 666

    *See Terms of Use Below

    Overview
    • Application Type
      • Gasketing - Removable/changeable foam gasketing
      • Adhesive - Bond
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape - Double coated Tape
    • Substrate
    • Industry
      • Electronics - Foils
      • Displays - Point of purchase displays
      • Industrial
      • Packaging - Plastic Packaging, Temporary hold for protective packaging material, such as foam or cardboard, used during shipment of manufactured goods
      • Other - Reclosable bags or envelopes, Core starting and end tabbing of papers, foils, and films, Removable stickers and labels, Book inserts, Mounting promotional items, Removable/changeable advertisements
    • Chemistry
      • Other - Plastic
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    Peel Strength (piw) 23 (oz./in.), 25 (oz./in.) Test Method
    Material Resistance
    UV Resistance Excellent
    High Temperature Resistance (°C) 52
    Business Information
    Shelf Life Details Storage: Store in original cartons at 70°F (21°C) and 50% relative humidity.;If stored under proper conditions, these products retain their 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 666

    *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 using 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 improve bond strength.

      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. An exception is 3M™ Repositionable Tapes 9425 and 9425HT which can be applied at temperature as low as 32°F (0°C).

  • Comparable Materials for 3M 666

    *See Terms of Use Below

    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
      764(3M)

      Can be used in non-critical applications such as color coding, bundling and safety marking, etc.

    • 3M
      4951(3M)

      White, closed-cell acrylic foam carrier • Apply as low as 32°F (0°C)

    • Compare All
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Peel Strength Test Methods
Peel Strength Type Substrate Test Method
23 (oz./in.) 180° Peel Strength Steel ASTM D3330, Faceside
25 (oz./in.) 180° Peel Strength Steel ASTM D3330, Backside