Structural Adhesive Film AF 191

Technical Datasheet

Typical Product

Performance (continued)

- 3 -

4. Metal to Metal Honeycomb – Climbing Drum Peel

Peel strength was measured on 3" x 8" honeycomb sandwich panel containing a 3" x 10" peel face sheet. Tests

were conducted per MIL-A-25463.

Climbing Drum Peel

3M™ Scotch-Weld™ Structural Adhesive Film AF 191 /

3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917

Temperature

Scotch-Weld AF 191K Film

Scotch-Weld AF 191U Film

°F (°C)

In•lb/3"

(cm•N/cm)

In•lb/3"

(cm•N/cm)

-67 (-55)

39

(57.8)

–

–

75 (23)

43

(63.8)

40*

(59.3)*

250 (121)

24

(35.6)

–

–

350 (177)

17

(25)

–

–

*Reticulated on Core

Skin: .020" thick 2024-T3 bare aluminum. Core: .50" thick, 1/4" cell, 4 mil foil, 5052 aluminum.

5. Metal to Honeycomb – Flatwise Tensile

All properties were measured on 2" x 2" honeycomb sandwich bonds using the procedure of MIL-A-25463.

Scotch-Weld

Scotch-Weld

Scotch-Weld

Scotch-Weld

AF 191K Film (.10)

AF 191K Film (.08)

AF 191M Film (.035)

AF 191U Film (.05)

Test Temperature

with Scotch-Weld

with Scotch-Weld

with Scotch-Weld

with Scotch-Weld

°F (°C)

EC-3917 Primer

EC-3917 Primer

EC-3917 Primer

EC-3917 Primer

-423 (-253)

691 psi ( 4.8 MPa)

–

–

697 psi (4.8 MPa)

-67 (-55)

1500 psi (10.3 MPa)

1600 psi (10.9 MPa)

940 psi (6.5 MPa)

1288* psi (8.9 MPa)

75 (23)

1500 psi (10.3 MPa)

1400 psi ( 9.7 MPa)

680 psi (4.7 MPa)

1016* psi (7.0 MPa)

300 (149)

650 psi ( 4.5 MPa)

–

–

490* psi (3.4 MPa)

350 (177)

600 psi ( 4.1 MPa)

450 psi ( 3.1 MPa)

245 psi (1.7 MPa)

378* psi (2.6 MPa)

*Reticulated on Core

Skin: .020" thick 2024-T3 bare. Honeycomb Core: .50" thick, 1/4" cell, 4 mil foil, 5052 aluminum

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

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