• Description for 3M 86A

    Designed to promote faster initial adhesion to certain types of surfaces, such as polyurethane paint, epoxy primers, or epoxy composites. It is not intended for use where the acrylic adhesive would be in direct contact with aluminum, stainless steel, carbon, steel, or glass.

    *See Terms of Use Below

    Application Type Primer, Adhesion Promoter
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Epoxy, Glass
    Manufacturer 3M
    Chemistry Isopropyl Alcohol, N-Propyl Alcohol
    Viscosity (cPs) <100
    Color Transparent, Colorless
    Can Be Used In Conjunction With These Materials Polyurethane
  • Technical Data for 3M 86A

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • Other - promoter is designed to promote faster initial adhesion to certain types of surfaces, such as polyurethane paint, epoxy primers, or epoxy composites
    • Chemistry
    • Cure Method
      • None
    • Color
      • Clear / Transparent - Transparent, Colorless
    • Can Be Used In Conjunction With These Materials
      • Urethanes - Polyurethane
    Specifications
    Cure Specs
    Viscosity (cPs) <100
    Bond Strength
    Peel Strength (piw) 132.4 (oz./in.), 117.0 (oz./in.) Test Method
    Other Properties
    Flash Point (°F) 53.6 Test Method
    % Solids (%) 7
    Business Information
    Shelf Life Details Storage: Store at 60-80°F (16-27°C). Lower temperature storage will cause 3M 86A promoter to gel.;Two years from date of manufacture.
    Shelf Life Temperature (°F) 140 to 176
    Shelf Life Type From date of manufacture.
    Shelf Life (mon) 24
  • Best Practices for 3M 86A

    *See Terms of Use Below

    1. Surface Preparation

      The bonding surface must be smooth, clean, dry and free of foreign matter. If necessary, the surface should be sanded to the smoothness attainable with 320 grit sandpaper. Clean the surface with isopropyl alcohol and allow the surface to dry prior to the application of 3M™ Adhesion Promoter 86A.

      Note: Towels or cloths used in the cleaning process should be untreated and lint free.

      Note: When using solvents, extinguish all ignition sources, including pilot lights. Read and follow manufacturer's warnings and directions for use.

      Wipe the surface with the pre-saturated 3M 86A Promoter wipe or with cheesecloth wetted with 3M 86A Promoter, using the minimum amount that will coat desired surface. More is not better. Allow to dry for 10 minutes. For best results, apply 3M Polyurethane Protective Tape with acrylic adhesive within two hours to the promoted surface.

  • Comparable Materials for 3M 86A

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Peel Strength Test Methods
Peel Strength Type Cure Time Substrate Test Method
132.4 (oz./in.) 180° Peel Strength 1 (hr dwell) Epoxy/Glass ASTM D-1000, (1 hr dwell, 180° Peel)
117.0 (oz./in.) 180° Peel Strength 1 (hr dwell) Mil-C-85285B ASTM D-1000, (1 hr dwell, 180° Peel)
Flash Point Test Methods
Flash Point Test Method
12.0°C Flammable liquid
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