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  5. 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917, 1 US gal

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917, 1 US gal

3M ID 623917755093M Product Number EC-3917
  • Simplified Production Schedule, Protects Clean Surface Until Bonding Complete.
  • Corrosion inhibiting pigment provides protection inside the bondline
  • Improves durability of bonded joint
  • Protects cleaned surfaces until bonding is complete
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Product Details
  • Simplified Production Schedule, Protects Clean Surface Until Bonding Complete.
  • Corrosion inhibiting pigment provides protection inside the bondline
  • Improves durability of bonded joint
  • Protects cleaned surfaces until bonding is complete
  • Can be brushed or sprayed
  • Can be used as a corrosion resistant coating.

Insures Complete Wetting of Film Adhesive to Adherend Surfaces.

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917 helps ensure complete wetting of the film adhesive system to bonding surfaces and improves durability of the bonded structure. It helps simplify production scheduling by protecting the cleaned surface until the bonding operations can be completed. With its sprayable consistency, EC-3917 is capable of high transfer efficiency for less overspray waste. When cured it promotes long-term durability for bonded joints. This aerospace primer can be co-cured with epoxy-based adhesive films at 250°F or 350°F to accommodate a variety of requirements and lessen the burden on inventory.

Promoting Corrosion Control
Our formula provides corrosion protection inside the bondline. And to make matters easier, EC-3917 heat cures to form a protective coating against corrosion. When cured at 250°F EC-3917 provides a solvent resistant coating for long-term durable protection. The stable coating also protects etched and anodized substrates for long term storage.

The Primer Advantage
3M™ Scotch-Weld™ Structural Adhesive Primer EC- 3917 helps protect surfaces against corrosion. Additionally, this primer can help improve production rates by offering high transfer efficiency for less overspray waste and quick flash off for no wait-time between passes. Let our unparalleled technical service and support show you how this primer can make a difference to your primer line. 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917 also offers these benefits:

  • Excellent corrosion protection
  • Robust mechanical performance
  • Impressive hot/wet durability
  • Serves 250°F or 350°F co-cure requirements
  • Sprayable, brush or roller application for a variety of process options

Primed for Take-off
In general, 3M Scotch-Weld™ structural adhesive primers complement the Scotch Weld™ Structural Adhesives portfolio and can be used to protect prepared substrates to be bonded. They facilitate "wet-out" of the primary adhesive agent to facilitate the bond between substrate and coating extrudate, then cured to enhance chemical resistance. Our adhesive primers help prepare the surfaces for the bonding agents and improve the conditions so that the adhesives are more effective and create stronger, longer lasting bonds.

Our Best for Your Best
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Enabling efficiencies, reducing process times and lowering aircraft weight is how 3M executes its never-ending mission to offer best-in-class adhesives, sealants, surface protection products and composite resins that effectively reduce costs on multiple fronts. Professionals across the industry know the numerous advantages of 3M Aerospace. The brand is widely recognized for the highest standards of quality and performance, adding value to the final results. By engineering reliability, longevity and value into all of its products, 3M has a history of saving money by reducing waste, rework and time.

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