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  • 3M™ Scotch-Weld™ Instant Adhesive Primer AC79
  • 3M™ Scotch-Weld™ Instant Adhesive Primer AC79

    3M Product Number AC79
    Products
    • Improves adhesion on flexible elastomers, including rubbers, such as silicone, fluoroelastomers, EPDM and TPE
    • Fast drying to keep jobs moving quickly
    • Contains cure accelerator
    • Straightforward surface preparation and easy application
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    Details
    • Improves adhesion on flexible elastomers, including rubbers, such as silicone, fluoroelastomers, EPDM and TPE
    • Fast drying to keep jobs moving quickly
    • Contains cure accelerator
    • Straightforward surface preparation and easy application
    • California compliant

    3M™ Scotch-Weld™ Instant Adhesive Primer AC79 is designed for use on difficult-to-bond low surface energy elastomers, such as EPDM, silicone and other rubbers. Surface preparation and application are straightforward and the adhesive primer is fast drying to keep jobs moving quickly.

    Designed for Difficult-to-Bond, Low Surface Energy Rubbers
    3M™ Scotch-Weld™ Instant Adhesive Primer AC79 is designed for difficult-to-bond, low surface energy elastomers. This primer (PDF, 239 Kb) should be applied to each low surface energy substrate surface to achieve desired results.

    Recommended Applications
    Improves adhesion of cyanoacrylate adhesives to:

    • Difficult-to-bond flexible elastomers
    • EPDM
    • Silicone
    • Fluoroelastomers
    Understanding Instant Adhesives
    Instant adhesives are cyanoacrylate based formulas that are strong, fast-acting glues used in industrial and household applications. In general, they are an acrylic resin that rapidly polymerizes in the presence of moisture, forming long, strong chains, joining the bonded surfaces together.

    Cyanoacrylate adhesives should be applied thinly, with pressure put on the bond for a few seconds, to ensure that the reaction proceeds rapidly and a strong bond is formed within a reasonable time.

    3M instant adhesives apply right from the container and rapidly reach handling strength at room temperature. Commonly referred to as a super hold glue, a single drop per square inch can bond many plastics, rubbers, metals, wood and more. An instant adhesive from 3M set a Guinness World Record in 2012 for the strongest glue by lifting an 8.1 metric ton forklift in the air for one hour.

    Bringing Better Ideas to the Surface through Science and Innovation
    In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

    Click here for more information on 3M Structural Adhesives (PDF, 16 Mb).

    Customer Reviews
    3M™ Scotch-Weld™ Instant Adhesive Primer AC79 is rated 1.0 out of 5 by 1.
    Rated 1 out of 5 by from Does not work on Silicone Applied as recommended to Silcone prior to laminating Transfer tape 3M 9675- did not allow the adhesive to stick - did not work
    Date published: 2019-07-16
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    Large Volume Order

    If you are considering a large purchase of this or other 3M Industrial Adhesives and Tape products, our inside sales team is ready to help by providing additional information and options. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we'll do our best to prove that we should be your supplier of choice.


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