Structural Adhesive Film

AF 555

- 6 -

Typical Cured

Physical Properties

Note: The following technical information and data is based on limited 3M testing

conditions and should not be used for specification purposes.

3M™ Scotch-Weld™

Structural Adhesive Film AF 555

0.06M Wt.

)a

P

M

(

I

S

P

C

°

F

°

)0

.6

3(

4

2

2

5

)3

2(

5

7

)3

.0

2(

8

3

9

2

)6

3

1(

7

7

2

XI. Composite to Composite Overlap Shear

All properties were measured on 1" wide, 1/2" overlap specimen cut from epoxy/graphite fiber, ten ply

unidirectional composite. Composite panels were cured using ten plies of carbon fiber prepreg, available as

Carbon Fibers America, Incorporated, Decatur, Alabama). Tested in accordance with ASTM D3165.

XIII. Out Time: Room Temperature Exposure

Scotch-Weld AF 555 Film was exposed at 77F (23C) / ambient humidity for the number of months specified

prior to bonding. Primer used was 3M™ Scotch-Weld™ Structural Adhesive Primer EW-5000. Overlap shear was

tested in accordance with ASTM D1002. Floating Roller Peel was tested in accordance with ASTM D3167-97.

Overlap Shear Specimens: 1" wide, 1/2" overlap specimen, 0.063" thick, FPL etched and phosphoric acid

anodized 2024-T3 bare aluminum. Primed with Scotch-Weld EW-5000 Primer.

Test Temperature

XII. Composite Double Cantilever Beam (DCB) Test Per BMS 8-276

Mechanical Test to determine strength after Glasochrom Pencil Markings

Composite Material Spec

BMS 8-276

Adhesive

Scotch-Weld™ AF 555 Film 0.05M Wt. Supported

Test Condition

75ºF

Width

Crack Length

Area

Energy

G1c

in

in

in^2

in*lbf

in*lbf/in^2

Lot # A

0.498

4.227

2.1071

9.466

4.490

Lot # B

0.497

3.856

1.9164

8.038

4.213

Lot # C

0.497

7.839

3.8959

19.182

4.924

Lot # D

0.500

5.074

2.87

14.972

5.901

Lot # E

0.498

6.384

3.1792

16.040

5.050

Lot # F

0.497

7.332

3.6440

18.035

4.949

Test

Temperature

0 Month

PSI (MPa)

6 Months

PSI (MPa)

12 Months

PSI (MPa)

75F (23C )

5416 (37 )

5243 (36 )

5005 (35 )

277 F (136C )

2606 (18 )

3277 (23 )

3208 (22 )

350 F (177C )

1571 (11 )

1499 (10 )

1410 (10 )

Scotch-Weld AF 555U Film 0.030 wt., Overlap Shear vs. Out Time

Structural Adhesive Film

AF 555

- 7 -

Typical Cured

Physical Properties

Note: The following technical information and data is based on limited 3M testing

conditions and should not be used for specification purposes.

Floating roller peel specimens: 1/2" wide, 0.063" back panel, 0.025" skin 2024-T3 bare aluminum, FPL

etched and phosphoric acid anodized. Primed with 3M™ Scotch-Weld™ Adhesive Primer EW-5000.

Test

Temperature

0 Month

PIW (N/25mm)

6 Months

PIW (N/25mm)

12 Months

PIW (N/25mm)

Scotch-Weld AF 555U Film 0.030 wt., Floating Roller Peel vs. Out Time

Scotch-Weld AF 555M Film 0.050 wt., Floating Roller Peel vs. Out Time

Scotch-Weld AF 555K Film 0.080 wt., Floating Roller Peel vs. Out Time

Test

Temperature

0 Month

PIW (N/25mm)

6 Months

PIW (N/25mm)

12 Months

PIW (N/25mm)

Test

Temperature

0 Month

PIW (N/25mm)

6 Months

PIW (N/25mm)

12 Months

PIW (N/25mm)

-67F (23C )

22 (97 )

20 (89 )

24 (107 )

75F (136C )

38 (169 )

35 (156 )

30 (133 )

180 F (177C )

39 (173 )

38 (169 )

40 (178 )

-67F (23C )

25 (111 )

27 (120 )

20 (89 )

75F (136C )

37 (165 )

36 (160 )

36 (160 )

180 F (177C )

39 (173 )

40 (178 )

40 (178 )

-67F (23C )

20 (89 )

21 (93 )

24 (107 )

75F (136C )

31 (138 )

32 (142 )

36 (160 )

180 F (177C )

29 (129 )

40 (178 )

41 (178 )

Scotch-Weld AF 555M Film 0.050 wt., Overlap Shear vs. Out Time

Scotch-Weld AF 555K Film 0.080 wt., Overlap Shear vs. Out Time

75F (23C )

5634 (39 )

5099 (35 )

5164 (36 )

277 F (136C )

3016 (21 )

3459 (24 )

3855 (27 )

350 F (177C )

1526 (11 )

1650 (11 )

1654 (11 )

75F (23C )

5765 (40 )

5410 (37 )

5840 (40 )

277 F (136C )

4355 (30 )

3519 (24 )

4009 (28 )

350 F (177C )

2252 (16 )

1819 (13 )

1981 (14 )

Test

Temperature

0 Month

PSI (MPa)

6 Months

PSI (MPa)

12 Months

PSI (MPa)

Test

Temperature

0 Month

PSI (MPa)

6 Months

PSI (MPa)

12 Months

PSI (MPa)

XIII. Continued – Out Time: Room Temperature Exposure