Typical Cured Properties

specification purposes.

Physical

Color

Gray

Shore D Hardness

75-80

Thermal

Electrical

Handling/Curing Information

Directions for Use

3M™ Scotch-Weld™ Epoxy Adhesive EC-3501 is supplied in bulk kits as well as side by side dual syringe plastic cartridges. To use the

cartridge system, simply insert the cartridge into the applicator. Next, remove the cartridge cap and expel a small amount of adhesive

to be sure both sides of the cartridge are flowing evenly and freely. If simultaneous mixing of Part A and Part B is desired, attach the

mixing nozzle to the cartridge and begin dispensing the adhesive.

When mixing Part A and Part B manually the components must be mixed in the ratio indicated in the typical uncured properties section of

this data sheet. Complete mixing of the two components is required to obtain optimum properties.

Two-part mixing/proportioning/dispensing equipment is available for intermittent or production line use. These systems are ideal for line

uses because of their variable shot size and flow rate characteristics and are adaptable to most applications.

Apply adhesive to clean, dry surfaces, join parts and secure until adhesive sets (see rate of strength build up).

These products may be applied by spatula, trowel, or flow equipment.

Surface Preparation

For highest strength structural bonds, paint, oxide films, oils, dust, mold release agents and all other surface contaminants must be

completely removed. The amount of surface preparation depends on the required bond strength and environmental aging resistance.

The following cleaning methods are suggested for these common surfaces. ASTM D2651 is suggested as a reference guide for surface

preparation for adhesive bonding for various substrates.

Steel

Aluminum

ThermalCoefficient of Expansion(in/in/°C)

60 x 10-6 (-50 to 10°C range)

234 x 10-6 (50 to 110°C range)

Thermal Conductivity btu - ft./ft.2 - hr. - °F

0.193

Dialectic Strength

700 volts/mil

Volume Resistivity

1.2 x 1013 ohm - cm