Structural Adhesive Film

AF 32

- 2 -

MMM-A-132B

Scotch-Weld AF 32 /

Type 1 Class 2

Scotch-Weld EC-1660

Test Condition

Requirement

Test Results

A. Tensile Shear

psi

MPa

psi

MPa

1. Normal Temperature, 75°F (24°C)

3500

24.1

4085

28.1

2. 10 minutes @ 180°F (82°C)

2000

13.8

2286

15.8

3. 10 minutes @ -67°F (-55°C)

3500

24.1

5086

35.0

4. Normal Temperature, 75°F (24°C) after 30 days immersion

N/A

N/A

3818

26.3

in Salt Water Spray

5. Normal Temperature, 75°F (24°C) after 30 days immersion

3250

22.4

3825

26.4

@ 120°F (49°C) and 95-100% Relative Humidity

6. Normal Temperature, 75°F (24°C) after 30 days immersion

N/A

N/A

3898

26.9

in Tap Water

7. Normal Temperature, 75°F (24°C) after 7 days immersion

3250

22.4

3631

25.0

in JP-4 Fuel (MIL-T-5624)

8. Normal Temperature, 75°F (24°C) after 7 days immersion

N/A

N/A

3798

26.2

in Anti-icing Fluid (MIL-F-5566)

9. Normal Temperature, 75°F (24°C) after 7 days immersion

3250

22.4

4238

29.2

in Hydraulic Oil

10. Normal Temperature, 75°F (24°C) after 7 days immersion

N/A

N/A

3643

25.1

in Type III Hydrocarbon Fluid (MIL-S-3136)

Product Performance

MMM-A-132 Type I Class 2 Test Data

The following is a summary and a list of average test results for the structural adhesive system Scotch-Weld AF 32

with 3M™ Scotch-Weld™ Structural Adhesive Primer EC-1660 when bonded specimens were prepared and tested

in accordance with Military Specification MMM-A-132B, Type 1 Class 2.

B. Creep Rupture

11. Normal Temperature, 75°F (24°C) 192 hrs @ 1600 psi

0.015" maximum

0.012 inches

(11.0 MPa)

deformation

12. 180°F, 192 hrs @ 800 psi (82°C, 192 hrs @ 5.5 MPa)

0.015" maximum

0.014 inches

deformation

C. Fatigue

13. Normal Temperature, 75°F (24°C) 750 psi (5.2 MPa) @

No glue line

No glue line

failure

failure

D. Other Tests

14. Normal Temperature, 75°F (24°C) T-Peel

15 piw

58 piw

15. Tensile Shear, 75°F (24°C) Blister Detection

3250 psi

22.4 MPa

3858 psi

26.6 MPa