• Description for 3M 8988

    A high-performance, packaging tape reinforced with continuous glass yarn filaments, which give the tape very high tensile strength.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Filament Tape
    Substrate Steel
    Manufacturer 3M
    Chemistry Synthetic rubber resin
    Cure Method Pressure Sensitive
    Color Clear
  • Technical Data for 3M 8988

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape - Filament Tape
    • Substrate
    • Industry
      • Industrial
      • Other - When printed, the tape provides advertising, warning, and labeling capability to be seen through the tape., Good clarity of artwork and important messages even when covered by the tape., Sealing corrugated cartons , Good holding under wide range ofapplication conditions with minimumamount of tape, Tough film backing protects
    • Chemistry
      • Synthetic Rubber - Synthetic rubber resin
    • Application Method
      • Dispenser - hand held manual dispensers, an automatic L-Clip applicator, Ease of dispensing and tape
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Application Temperature (°F) 68 to 77
    Fixture or Handling Strength Time (min) Good
    Bond Strength
    General Bond Strength (psi) 75 (oz./in.), Exceptional initial adhesion, Good holding with minimum amount of tape, Holds instantly with minimum rubdown Test Method
    Shear Strength (psi) High
    Tensile Strength (psi) Very High, 380 (lbs./in.) Test Method
    Material Resistance
    Abrasion Resistance Excellent
    Moisture/Humidity Resistance Excellent
    Hardness
    Elongation (%) 3 Test Method
    Business Information
    Shelf Life Details Storage Conditions: Store behind present stock. Store in a clean, dry place. Temperature of 40-80°F (4-26°C) and 40 to 50% relative humidity are recomme nded. Rotate your stock.;Shelf Life: To obtain best performance, use this product within 18 months from date of manufacture.
    Shelf Life Temperature (°F) 40 to 80
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 18
  • Best Practices for 3M 8988

    *See Terms of Use Below

    1. Surface Preparation

      Substrate surfaces should be clean and dry prior to tape application. Isopropyl alcohol (isopropanol) applied with a lint-free wipe or swab should be adequate for removing surface contamination such as dust or finger prints. Do not use “denatured alcohol” or glass cleaners which often contain oily components. Allow the surface to dry for several minutes before applying the tape. More aggressive solvents (such as acetone, methyl ethyl ketone (MEK) or toluene) may be required to remove heavier contamination (grease, machine oils, solder flux, etc.) but should be followed by a final isopropanol wipe as described above.

      Note: Be sure to read and follow the manufacturers’ precautions and directions when using primers and solvents.

    2. Application

      Apply the tape to one substrate at a modest angle with the use of a squeegee, rubber roller or finger pressure to help reduce the potential for air entrapment under the tape during its application. The liner can be removed after positioning the tape onto the first substrate.

      Assemble the part by applying compression to the substrates to ensure a good wetting of the substrate surfaces with the tape. Proper application of pressure (amount of pressure, time applied, temperature applied) will depend upon design of the parts. Rigid substrates are more difficult to bond without air entrapment as most rigid parts are not flat. Use of a thicker tape may result in increased wetting of rigid substrates. Flexible substrates can be bonded to rigid or flexible parts with much less concern about air entrapment because one of the flexible substrates can conform to the other substrate.

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Tensile Strength Test Methods
Tensile Strength Test Method
Very High
380 (lbs./in.) ASTM D-3759, width (6655 N/100 mm width)
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
75 (oz./in.) Steel ASTM D-3330, width (82 N/100 mm width)
Exceptional initial adhesion
Good holding with minimum amount of tape
Holds instantly with minimum rubdown
Elongation Test Methods
Elongation Test Method
3 % ASTM D-3759 (at Break)