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3M™ Scotch-Weld™ Structural Adhesive Primer EC-3918, Non-Chromated, 1 gal, 4 Drum/Case

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3918, Non-Chromated, 1 gal, 4 Drum/Case

Part Number EC-3918
3M Product Number EC-3918
3M ID 7100055869
UPC 00048011987811

Spray, brush or roller application meets a variety of process requirements

Promotes long-term durability to bonded joints

Stable coating protects etched and anodized substrates for long term storage

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Details

Highlights

Spray, brush or roller application meets a variety of process requirements
Promotes long-term durability to bonded joints
Stable coating protects etched and anodized substrates for long term storage
Provides a solvent resistant coating durable protection when cured
Compatible with adhesives that cure at 250°F or 350°F

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3918 is a heat curing structural adhesive primer for Scotch-Weld™ epoxy based film adhesives. When used as an aerospace primer, EC-3918 helps create an adhesive bond that resists attack by salt spray, high humidity and aircraft fluids. This adhesive primer is effective with 3M™ Scotch-Weld™ Structural Adhesive Film AF 191.

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3918 helps ensure complete wetting of the film adhesive system to bonding surfaces and improves durability of the bonded assembly. It helps simplify production scheduling by protecting the cleaned surface until the bonding operations can be completed. This adhesive aerospace is compatible with adhesives that cure at 250°F or 350°F. The stable coating also protects etched and anodized substrates for long term storage. EC-3918 primer does not contain a corrosion inhibitive pigment.

Primer/Adhesive Guide
Solvent-borne		Primers	Adhesives
	Nitrile Phenolic	EC-1290	AF 6,AF 10,AF 13
		EC-1660	AF 30,AF 32
		EC-2174	AF 15,AF 31
	Epoxy	EC-3917	Universal C.I.* 350°F cure
		EC-3924B	AF 163-2
		EC-3960	Universal C.I.* 250°F cure
		EC-1945 B/A	Room temp curing adhesives
Water-borne		EW-5000	Universal C.I.* 250°F cure
Water-borne		EW-5000AS (Non Chromated)	Universal C.I.* 250°F / 350°F cure

The Primer Advantage
3M™ Scotch-Weld™ Structural Adhesive Primer EC- 3918 helps protect surfaces against corrosion. Additionally, this primer offers 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-3918 also offers these benefits:

Robust mechanical performance
Impressive hot/wet durability
Spray, brush or dip application for a variety of process options

Primed for Take-off
In general, 3M Scotch-Weld™ structural adhesive primers complement the 3M Scotch Weld™ Structural Adhesives portfolio and can be used to protect prepared substrates to be bonded. They facilitate "wet-out" of the primary adhesive film to the substrate, and are 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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