• Description for 3M EC40

    A low viscosity cyanoacrylate that is fast curing. It is recommended for use on assemblies with close-fitting parts and smooth, even surfaces.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Metals, Most plastics, Rubbers, Steel, Stainless Steel, Aluminum, Nylon
    Manufacturer 3M
    Chemistry Ethyl
    Cure Method Moisture
    Gap Fill 0.004 (in)
    Cure Time (min) Fast, 1,440
    Viscosity (cPs) Low, 20 to 45
    Color Clear
    Chemical Resistance Oils, excellent
    Relative Solvent Resistance Chemical Resistance: solvents
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -51
    Key Specifications International Organization for Standardization
  • Technical Data

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  • Best Practices

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Cure Time Test Methods
Cure Time Test Method
1,440 min Uncured
Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
<0.25 min Uncured, On EPDM. Time to handling is substrate dependent.
Viscosity Test Methods
Viscosity Test Method
20 to 45 cPs Uncured, Cone-Plate viscosity, CP75 at 3000/s shear rate
Tensile Strength Test Methods
Tensile Strength Test Method
2,900 psi ISO 6922
Shear Strength Test Methods
Shear Strength Type Substrate Test Method
2,000 psi Overlap Shear Strength Steel Cured, ASTM D-1002, Grit blasted
2,400 psi Overlap Shear Strength Stainless Steel Cured, ASTM D-1002, Grit blasted
1,700 psi Overlap Shear Strength Aluminum Cured, ASTM D-1002, Grit blasted
1,000 psi Overlap Shear Strength ABS Cured, ASTM D-1002, Substrate failure
800 psi Overlap Shear Strength Polycarbonate Cured, ASTM D-1002, Substrate failure
1,200 psi Overlap Shear Strength PVC Cured, ASTM D-1002, Substrate failure
400 psi Overlap Shear Strength Nylon Cured, ASTM D-1002
800 psi Overlap Shear Strength Polypropylene Cured, ASTM D-1002, Primed with AC77, Substrate failure
100 psi Overlap Shear Strength Silicone Elastomers Cured, ASTM D-1002, Primed with AC79, Substrate failure
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
82°C Cured
Low Temperature Resistance Test Methods
Low Temperature Resistance Test Method
-51°C Cured
Specific Gravity Test Methods
Specific Gravity Test Method
1.06 (g/ml) Uncured