• Description for 3M AC78

    Cyanoacrylate primer, helps to bind elastomeric materials including silicone.

    *See Terms of Use Below

    Application Type Prime
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Substrate Silicone
    Manufacturer 3M
    Chemistry Heptane
    Viscosity (cPs) <5.00
    Color Colorless
  • Technical Data for 3M AC78

    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Substrate
      • Silicone
      • Other - Elastomeric Substrates, Bind Elastomeric Materials
    • Chemistry
    • Cure Method
      • None
    • Color
      • Clear / Transparent - Colorless
    Cure Specs
    Viscosity (cPs) <5.00
    Other Properties
    Specific Gravity 0.680
    Business Information
    Shelf Life Details Storage: Store product in cool, dry area out of direct sunlight.;3M™ Scotch-Weld™ Instant Adhesive Activators, Primers, and Debonder can be expected to have a shelf life of one year from the date of shipment from 3M.
    Shelf Life Type From the date of shipment
    Shelf Life (mon) 12
    Not Good For
    Don't Use With especially some plastics
  • Best Practices for 3M AC78

    *See Terms of Use Below

    1. Surface Preparation

      Prepare bonding surfaces according to Surface Preparation recommendations for the cyanoacrylate that will be used.

    2. Application

      Apply primer to all difficult-to-bond plastic surfaces

      Allow solvent to dry completely.

      Promptly bond with a Scotch-Weld™ cyanoacrylate for plastic or elastomeric bonding.

    3. Testing

      These products should be tested on substrates before use since their overspray or excess may attack certain substrates (especially some plastics) causing unsightly effects.

  • Comparable Materials for 3M AC78

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