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3M™ Scotch-Weld™ Epoxy Adhesive EC-1469, Cream, One-Part, 100% Solids, Thermosetting Liquid Adhesive

Brand: 3M™ Scotch-Weld™
Product Number: EC-1469
Technologies: Epoxy
Color: White to Cream
Cure Type: Heat Cure
Package Sizes: 1 Quart
Shelf Life: 6 months

Product Description

3M™ Scotch-Weld™ Epoxy Adhesive EC-1469 is a one-part, 100% solids, thermosetting liquid adhesive formulated for high-strength structural bonding in aerospace and industrial applications. It provides exceptionally high strength at service temperatures ranging from -70°F to 300°F (-57°C to 149°C) and emits no volatile by-products during curing, making it ideal for bonding impervious surfaces under minimal pressure. The adhesive is easily applied using a spatula, trowel, roller, or high-pressure injection, making it versatile for multiple bonding applications​.


Key Features

  • High-Temperature Resistance: Performs effectively at -70°F to 300°F (-57°C to 149°C).
  • No Volatile By-Products: Enables bonding of impervious surfaces under minimal pressure.
  • Easy Application: Can be applied via knife coating, trowel, roller, or pump injection.
  • Excellent Strength Retention: Maintains bond integrity after aging in various environments.
  • Precise Application Control: Compatible with high-pressure extrusion equipment.

Recommended Applications

  • Structural bonding of metals, composites, and plastics in aerospace and industrial applications.
  • Bonding impervious surfaces where minimal applied pressure is required.
  • Applications requiring high-temperature durability and environmental aging resistance.

Technical Data

Typical Uncured Physical Properties

Attribute Name Value
Color White to Cream¹
Base Resin Modified Epoxy
Solvent None
Net Weight 10.0 ± 0.2 lb/gal
Flash Point 220°F (104°C) (Closed Cup)
Flow Initiation Temperature 60°F (16°C)
Viscosity 40,000 – 80,000 cP²
Consistency Flowable Syrup
Cure Initiation Temperature 280 – 300°F (138 – 149°C)

¹ Colors may vary from nearly white to yellow/amber; performance is not affected.
² Measured using Brookfield Viscometer​.


Typical Cured Characteristics

Attribute Name Value
Cured Color White to Cream
Bond Line Thickness 2 – 5 mil (optimal)

Typical Performance Characteristics

Attribute Name Test Condition Value Test Method
Tensile Shear Strength Normal Temp (75°F / 24°C) 3695 psi ASTM D1002
Tensile Shear Strength 10 min @ 300°F (149°C) 3633 psi ASTM D1002
Tensile Shear Strength 300°F (149°C) after 192 hr @ 300°F 2260 psi ASTM D1002
Tensile Shear Strength 10 min @ -67°F (-55°C) 3150 psi ASTM D1002
Tensile Shear Strength 30 Days in Salt Water Spray (75°F) 3081 psi ASTM D1002
Tensile Shear Strength 30 Days @ 120°F (49°C) & 95% RH 3025 psi ASTM D1002
Tensile Shear Strength 30 Days in Tap Water (75°F) 3603 psi ASTM D1002
Tensile Shear Strength 7 Days in JP-4 Fuel (75°F) 2766 psi ASTM D1002
Tensile Shear Strength 7 Days in Anti-Icing Fluid (75°F) 2766 psi ASTM D1002
Tensile Shear Strength 7 Days in Hydraulic Oil (75°F) 2659 psi ASTM D1002
Tensile Shear Strength 7 Days in Type III Hydrocarbon Fluid (75°F) 2651 psi ASTM D1002

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