Structural Adhesive Film

AF 31

Environmental Aging of 3M™ Scotch-Weld™ Structural Adhesive Film AF 31 on Aluminum Using

Short Time Cure Cycle (Specimens Cut to 1" Width Prior To Immersion)

Cure Cycle – 15 seconds in a 450°F (232°C) platen press, 350 psi, maximum bond line temperature attained

412°F (210°C).

Product Performance

(continued)

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

or typical only and should not be used for specification purposes.

Overlap Shear Strength (psi)

Environment

-40°F (-40°C)

75°F (24°C)

180°F (82°C)

250°F (121°C)

350°F (177°C)

Control

3400

3050

2400

1850

1650

100% R.H. @ 100°F (38°C)

7 Days

3450

3000

2400

1800

1400

14 Days

3400

3200

2600

1800

1700

30 Days

3950

3300

2400

1900

1500

60 Days

3950

3400

2400

1800

1000

1/2 Year

4300

3900

2000

1800

1300

1 Year

4300

3300

2000

1900

1200

Tap Water @ 120°F (49°C)

7 Days

3450

2800

2600

1600

1400

14 Days

3800

3200

2500

1900

1600

30 Days

3950

3200

2400

1700

1500

60 Days

3800

3200

2450

1600

1100

1/2 Year

3800

3750

2200

2200

1300

1 Year

3300

2250

2200

1800

900

Gasoline @ 75°F (24°C)

7 Days

3800

3100

2400

1600

1450

14 Days

3800

3100

2200

1350

1350

30 Days

3800

3100

2350

1550

1400

60 Days

3800

3150

2400

1550

1350

1/2 Year

3400

3200

2600

2050

1300

1 Year

3000

2850

2400

1550

1150

Methanol @ 75°F (24°C)

7 Days

3950

3200

2350

2100

1250

14 Days

3250

3350

2050

2000

1600

30 Days

3800

2800

2250

1900

1250

60 Days

3750

3000

1950

1000

750

1/2 Year

3800

2500

1600

1000

600

1 Year

4050

2700

2400

1250

900

Salt Spray @ 75°F (24°C)

7 Days

3700

2950

1900

1750

1400

14 Days

3800

3250

1900

2000

1600

30 Days

4300

3300

2300

1700

1550

60 Days

4000

2950

2100

1800

1000

1/2 Year

3200

3100

1750

2000

1050

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