Structural Adhesive

EC-3448

- 4 -

Note: The following technical information and data should be considered representative or

typical only and should not be used for specification purposes.

Test Results to the Requirements of MMM-A-132A, Type 1, Class 2, Form P, Group 3

Product Performance

(continued)

Min. Average

Property

Test Conditions

Requirements

Average Values

Tensile shear

@ 75°F

3500 psi

5545 psi

Tensile shear

10 min. @ 180°F

2000 psi

5082 psi

Tensile shear

10 min. @ -67°F

3500 psi

5697 psi

Tensile shear

75°F after 30 days @

120°F and 100% R.H.

3500 psi

4238 psi

Tensile shear

75°F after 7 days in:

a,

Hydraulic oil @ RT

3250 psi

5591 psi

b,

JP-4 @ RT

3250 psi

5647 psi

T-Peel

@ 75°F

20 piw

35 piw

Blister Detection

@ 75°F

3250 psi

3683 psi

Fatigue

750 psi, 106 cycles

No failures

No failures

Creep rupture

75°F @ 1600 psi

0.015 inches max.

0.000 inch

Creep rupture

180°F @ 800 psi

0.015 inches max.

0.000 inch

Procedures: According to MMM-A-132A

Surface Preparation: Optimized FPL etch

Cure Cycle: 260°F for 60 minutes, 10°F rise rate/minute, 10 psi

Note: While this information is provided as a general application guideline based upon

typical conditions, it is recognized that no two applications are identical due to

differing assemblies, methods of heat and pressure application, production equipment

and other limitations. It is therefore suggested that experiments be run, within the

actual constraints imposed, to determine optimum conditions for your specific

application and to determine suitability of product for particular intended use.

Surface Preparation

A thoroughly cleaned, dry grease-free surface is essential for maximum performance.

Cleaning methods which will produce a break free water film on metal surfaces are

generally satisfactory.

A. Aluminum: Optimized FPL Etch – 3M Company (AdhD method C-2803) or

ASTM D2651 Method G.

1. Vapor degrease – perchloroethylene condensing vapors for 5-10 minutes.

2. Alkaline degrease – Oakite 164 solution 9-11 oz./gallon of water at 190° ± 10°F

for 10 to 20 minutes. Rinse immediately in large quantities of cold running

water (AdhD method C-2802).

3. Acid Etch – Immerse panels in the following solution for 10 minutes at 150 ± 5°F:

4.1-4.9 oz./gallon

Sulfuric Acid 66° Be

38.5-41.5 oz./gallon

2024T-3 aluminum (dissolved)

0.2 oz./gal. minimum

Tap Water

Balance

4. Rinse immediately in large quantities of clear running tap water.

Product Application