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3M™ Scotch-Weld™ Structural Adhesive Primer EC-3910
- 3M Product Number EC-3910
- 3M ID B5005180029
Prime. Protect. Perform.
3M™ Scotch-Weld™ Structural Adhesive Primer EC-3910 delivers non-chromated corrosion protection and complete wet-out for reliable, long-lasting structural bonds.
Details
Highlights
- Solvent-based, non-chromated corrosion-inhibitive structural adhesive bonding primer
- Designed for use with 250ºF (121ºC) curing epoxy adhesive systems
- Protects cleaned, etched, and anodized surfaces until ready for adhesive bonding
- Enables complete wetting of the adhesive to the adherends
- Service temperature from -67⁰F to 250⁰F (-55⁰C to 121⁰C)
- Sprayable with conventional HVLP spray equipment
- Compatible with 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2 and next-generation 3M™ Scotch-Weld™ Structural Adhesive Film AF 501
- Demonstrated capability with traditional surface treatments
- Blue-green in color
3M™ Scotch-Weld™ Structural Adhesive Primer EC-3910 is a solvent-based, non-chromated, corrosion-inhibitive primer engineered for structural bonding with epoxy adhesive systems that cure at 250°F (121°C). Formulated to enable complete wetting of the adhesive at the adherend interface, it helps establish strong initial adhesion and promotes the long-term durability of bonded joints. In demanding aerospace and defense manufacturing applications, EC-3910 supports bond integrity by helping resist attack from salt spray, high humidity, and common aircraft fluids, and delivers dependable performance across a service temperature range of -67°F to 250°F (-55°C to 121°C).
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Confidence in every bond
3M Scotch-Weld Structural Adhesive Primer EC-3910, the newest member of the 3M flight-proven structural bonding primer range, brings a solvent-based, corrosion-inhibitive, non-chromated option for 250°F (121°C) curing epoxy adhesive films. It delivers the bonding confidence you expect while providing a practical alternative to traditional chromated solutions.
Typical properties
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