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Structural Adhesive Film

AF 126 • AF 126 FR

Product Performance (continued)

Peel Tests (Stainless Steel #301 half hard, 8 mil) Test @ 75°F (24°C)

Climbing Drum Peel (Metal to Metal)

51 in•lbs/in (226.9 mN/m)

T-Peel

20 piw (89 N/25 mm)

Honeycomb Peel

13.7 in•lbs/in (60.9 mN/m)

Cure Conditions – 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3901

Honeycomb Core – 5052, 7/16" thick, 3/16" cell, 1 mil foil, non-perf. (11.1 mm thick, 4.76 mm cell, 25.4 micron foil)

Cured 6-8°F/minute rise, 250°F, 60 minutes, 50 psi (cured 3.3-4.4°C/minute rise, 121°C, 60 minutes, 0.35 MPa).

Primer EC-2320 Overlap Shear (Etched Aluminum) After 10 Hour Post Cure at 300°F (149°C)

1. Unaged

Tested @ 75°F (24°C)

6295 psi

43.4 MPa

Tested @ 300°F (149°C)

395 psi

2.7 MPa

2. 10 Hours @ 300°F (149°C) Aged

Tested @ 75°F (24°C)

6325 psi

43.6 MPa

Tested @ 300°F (149°C)

315 psi

2.2 MPa

Cured 250°F, 50 psi, 60 minutes, 6-8°F/minute rise (121°C, 0.35 MPa, 60 minutes, 3.3-4.4°C/minute rise).

Surfaces

Tested @ -67°F (-55°C)

3900 psi

26.9 MPa

75°F (24°C)

4250 psi

29.3 MPa

180°F (82°C)

2070 psi

14.3 MPa

Cured 60 minutes @ 250°F, 50 psi, 6-8°F/minute rise (cured 60 minutes@ 121°C, 0.35 MPa, 3.3-4.4C/minute rise).

75°F (24°C) Overlap Shear

Time in Press

Platen

Cold Rolled Steel

On Aluminum

Minutes

Temperature

Solvent Wiped

(FPL Etched)

60

250°F

(121°C)

2690 psi

18.5 MPa

5000 psi

34.5 MPa

6

300°F

(149°C)

3180 psi

21.9 MPa

4700 psi

32.4 MPa

2

350°F

(177°C)

3367 psi

23.2 MPa

4800 psi

33.1 MPa

0.5

400°F

(204°C)

3120 psi

21.5 MPa

4000 psi

33.6 MPa

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

typical only and should not be used for specification purposes.