| Product |
Weight<br>(± .005) Lb/ft<sup>2</sup> |
Colour |
Nominal Thickness – mils |
| Scotch-Weld AF 163-2G108 Film |
0.100 |
Pink |
16 |
| Scotch-Weld AF 163-2K Film |
0.045 |
Yellow |
7.5 |
| Scotch-Weld AF 163-2K Film |
0.060 |
Red |
9.5 |
| Scotch-Weld AF 163-2K Film |
0.085 |
Blue |
13 |
| Scotch-Weld AF 163-2L Film |
0.030 |
Pink |
5.5 |
| Scotch-Weld AF 163-2M Film |
0.045 |
Yellow |
7.5 |
| Scotch-Weld AF 163-2M Film |
0.060 |
Red |
9.5 |
| Scotch-Weld AF 163-2M Film |
0.085 |
Blue |
13 |
| Scotch-Weld AF 163-2OST Film |
0.030 |
Green |
5.5 |
| Scotch-Weld AF 163-2OST Film |
0.045 |
Green |
5.5 |
| Scotch-Weld AF 163-2OST Film |
0.060 |
Red |
9.5 |
| Scotch-Weld AF 163-2U Film |
0.015 |
Red |
2.5 |
| Scotch-Weld AF 163-2U Film |
0.030 |
Red |
5.5 |
| Scotch-Weld AF 163-2U Film |
0.060 |
Red |
9.5 |
| Scotch-Weld AF 163-3M Film |
0.030 |
Green |
5.5 |
Codes:
G = fiberglass scrim
K = knit supporting carrier
L = light weight non-woven supporting carrier (Matte)
M = non-woven supporting carrier (Matte)
OST = one side tacky with non-woven carrier (Matte) on low tack surface
U = unsupported film
I. Typical 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2 Cured Free
Film (unsupported) Properties: (cured 60 minutes at 250°F)
| Property |
Typical Value |
Method |
| Glass Transition (Tg) Temperature<br>- Dry<br>- Wet (14 Days in 70°C water) |
<br>226°F (108°C)<br>180°F(82°C) |
<br>DuPont 1090 DMA<br>@ 5°C/min ramp |
| Thermal Conductivity @ 43°C |
<div style=”display: flex; justify-content: center;”>
<p style=”margin-right: 5px;”>.096</p>
<div style=”display:inline-block; text-align: center; vertical-align: middle; font-size: 20px;”>
<span style=”border-bottom: 1px solid black; padding: 0 2px; font-size: small;”>btu-ft</span><br>
<span style=”padding: 0 2px; font-size: small;”>ft<sup>2</sup>hr°F</span>
</div>
</div> |
ASTM C-177 |
| Thermal Coefficient of Expansion @ -30 to 50°C |
<div style=”display: flex; justify-content:center;”>
<p style=”margin-right: 5px;”>90 x 10<sup>-6</sup></p>
<div style=”display:inline-block; text-align: center; vertical-align: middle; font-size: 20px;”>
<span style=”border-bottom: 1px solid black; padding: 0 2px; font-size: small;”>in</span><br>
<span style=”padding: 0 2px; font-size: small;”>in °C</span>
</div>
</div> |
TMA @ 5°C/min |
| Volume Resistivity |
4.4 x 10<sup>14</sup> ohm-cm |
ASTM D-257 |
| Dielectric Strength @ 1 KHz @ 75°F (23°C) |
1800 volt/mil |
ASTM D-149 |
Dielectric Constant and Dissipation Factor ASTM D 150
| Product |
Frequency |
Dissipation Factor @ 75°F (23°C) |
Dielectric Constant @ 75°F (23°C) |
| <br><br>Scotch-Weld AF 163-2U Film |
100 Hz<br>1 KHz<br>10 KHz<br>100 KHz<br>1 MHz |
.008<br>.012<br>.016<br>.026<br>.039 |
4.8<br>4.7<br>4.6<br>4.5<br>4.3 |
| Scotch-Weld AF 163-2K Film |
8-12.4 GHz<br>12.4-18 GHz |
.033<br>.029 |
3.08<br>3.01 |
| Scotch-Weld AF 163-2M Film |
8-12.4 GHz<br>12.4-18 GHz |
.037<br>.029 |
2.91<br>2.74 |
Tensile Strength and Modulus (ASTM D 638)
Cured: Free Film Strips approx. 1/4″ x 3″ x .01″ thick
Cure: 90 minutes at 235°F
| Temperature |
Ultimate Strength (psi) |
Modulus (psi) |
| -67°F |
11,000 |
2.3 x 10<sup>5</sup> |
| 75°F |
7,000 |
1.6 x 10<sup>5</sup> |
| 180°F |
3,000 |
6 x 10<sup>4</sup> |
A. 75°F Bulk Modulus, Shear Modulus, and Poisson’s Ratio – knit supported
17 ply laminate ~ 0.1 inches thick (ASTM D 3039) cure – 60 minutes at 250°F
Modulus Elasticity – 161 x 103 psi
Shear Modulus – 60 x 103 psi
Poisson’s Ratio – 0.34
B. Self extinguishing Characteristics: knit supported.
Method: FAR 25.853 – Sample: 1/4″ x 1/2″ x 4″
Cure: 60 minutes at 250°F
| Sample Orientation |
Flame Exposure Time (Seconds) |
Self Extinguishing Time (Seconds) |
| 1. 4″ length horizontal and 1/2″ dimension vertical |
15 |
0.5 |
| Same as (1.) |
60 |
3.7 |
| 3. 4″ length vertical |
15 |
6.3 |
| 4. Same as (3.) |
60 |
70 |
II. Typical Cured Bond Properties
A. 75°F Fracture Toughness – 3M Test Method C-295
Cure Cycle: 235°F, 90 minutes, 35 psi, 5°F/min.
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare 1/2″ thick aluminum – FPL etched and Phosphoric Acid Anodize
|
|
Scotch-Weld AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
Scotch-Weld AF 163-2OST<br>(.03 lb/ft<sup>2</sup>) |
Scotch-Weld AF 163-2OST<br>(.06 lb/ft<sup>2</sup>) |
Scotch-Weld AF 163-3M<br>(.03 lb/ft<sup>2</sup>) |
| G<sub>IC</sub> |
<div style=”display:inline-block; text-align: center; vertical-align: middle; font-size: 20px;”>
<span style=”border-bottom: 1px solid black; padding: 0 2px; font-size: small;”>IN LBS</span><br>
<span style=”padding: 0 2px; font-size: small;”>IN<sup>2</sup></span>
</div> |
25 |
22 |
21 |
17 |
| G<sub>IA</sub> |
<div style=”display:inline-block; text-align: center; vertical-align: middle; font-size: 20px;”>
<span style=”border-bottom: 1px solid black; padding: 0 2px; font-size: small;”>IN LBS</span><br>
<span style=”padding: 0 2px; font-size: small;”>IN<sup>2</sup></span>
</div> |
15 |
13 |
13 |
10 |
B. Thick Adherend Shear Properties – ASTM D5656
Cure Cycle: 270°F, 60 minutes, 40 psi, 1°F/min.
Adherends: 2024 T-3 Bare 0.25″ thick aluminum – FPL etched
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
| Test Temp. |
Ultimate Shear (psi) |
Ultimate Elong. (in) |
Yield Stress (psi) |
Yield Elong. (in) |
Shear Modulus (psi) |
| 75°F |
6950 |
.0052 |
5255 |
.00074 |
63,685 |
| 180°F |
5780 |
.0114 |
3075 |
.00079 |
26,495 |
C. Metal to Metal Wide Area Blister Detection Shear Strength (psi) – 3M Test Method C-2232
Cure: 235°F, 90 minutes, 35 psi, 5°F/min.
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare .063″ thick – FPL etched
| Test Temp. |
AF 163-2OST<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2OST<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2M<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K<br>(.085 lb/ft<sup>2</sup>) |
AF 163-3M<br>(.03 lb/ft<sup>2</sup>) |
| -67°F |
5500 |
4800 |
5200 |
5400 |
5100 |
5400 |
| 75°F |
5400 |
5400 |
5100 |
5100 |
5000 |
4800 |
| 180°F |
3700 |
3800 |
3700 |
3500 |
3400 |
3400 |
| 250°F |
2400 |
2400 |
2400 |
2400 |
2200 |
2600 |
D. Metal to Metal Overlap Shear Strength (psi) – 3M Test Method C-244 or ASTM D 1002
1. Cure Cycle: 250°F, 60 minutes, 20 psi, 1°F/minute rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917
Metal: 2024 T-3 ALCLAD .063″ thick – unsealed Chromic Acid Anodized
| Test Temp. |
AF 163-2OST Film<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
5400 |
6400 |
6200 |
5100 |
| 75°F |
5200 |
5700 |
5800 |
5400 |
| 180°F |
3200 |
3600 |
3800 |
3800 |
2. Cure Cycle: 250°F, 90 minutes, 25 psi, 4°F/minute rise rate
Primer: None
Metal: 2024 T-3 Bare .063″ thick – FPL etched
| Temperature |
AF 163-2L Film<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
5970 |
6430 |
| 75°F |
5290 |
5990 |
| 180°F |
4200 |
4600 |
E. Metal to Metal Blister Detection Shear (psi) – 3M Test Method C-265
Cure Cycle: 270°F, 60 minutes, 40 psi, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Bare 0.063″ thick – FPL etched
| Temperature |
AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2M<br>(.06 lb/ft<sup>2</sup>) |
| -67°F |
6900 |
7000 |
| 75°F |
5100 |
5000 |
| 180°F |
3600 |
3600 |
F. Metal to Metal T-Peel Strength (piw) – 3M Test Method C-252
Cure Cycle: 250°F, 60 minutes, 20 psig, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917
Metal: 2024 T-3 clad .020 in. thick aluminum – unsealed Chromic Acid Anodized
Peel Rate: 20″/min.
| Test Temp. |
AF 163-2OST Film<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
25 |
25 |
33 |
29 |
| 75°F |
29 |
44 |
45 |
41 |
| 180°F |
24 |
40 |
38 |
35 |
| 250°F |
20 |
30 |
28 |
20 |
G. Metal to Metal Floating Roller (Bell) Peel Strength (piw) – 3M Test Method C-260
1. Cure Cycle: 270°F, 60 minutes, 50 psi, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Bare FPL etched .025″ to .063″ aluminum
Peel Rate: 6″/min.
| Temperature |
AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2M<br>(.06 lb/ft<sup>2</sup>) |
| -67°F |
78 piw |
58 piw |
| 75°F |
78 piw |
79 piw |
| 180°F |
76 piw |
76 piw |
2. Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 7075-T6 clad Chromic Acid Anodize, .025″ to .063″ Aluminum
Peel Rate: 6″/min.
| Test Temperature |
AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.085 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.045 lb/ft<sup>2</sup>) |
| -67°F |
57 |
55 |
– |
| 75°F |
55 |
63 |
55 |
| 160°F |
46 |
45 |
– |
H. Metal to Metal Climbing Drum Peel Strength (in•lb/in) – 3M Test Method C-2222
Cure Cycle: 235°F, 90 minutes, 35 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Clad aluminum .020″ to .040″ FPL etched
Peel Rate: 3″/min. (cross head speed)
Test Temperature: 75 ± 5°F
| Adhesive |
Peel Strength (in·lb/in) |
| Scotch-Weld AF 163-2OST Film (.03 lb/ft<sup>2</sup>) |
70 |
| Scotch-Weld AF 163-2OST Film (.06 lb/ft<sup>2</sup>) |
75 |
| Scotch-Weld AF 163-2K Film (.06 lb/ft<sup>2</sup>) |
80 |
| Scotch-Weld AF 163-2M Film (.06 lb/ft<sup>2</sup>) |
80 |
| Scotch-Weld AF 163-3M Film (.03 lb/ft<sup>2</sup>) |
60 |
I. Metal to Honeycomb Climbing Drum Peel Strength (in•lb/in) – 3M Test Method C-245
1. Cure Cycle: 250°F, 60 minutes, 20 psi, 1°F/min. rise rate
Primer for Skins: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917
Skins: 2024 T-3 0.020″ thick aluminum – Chromic Acid Anodized
Core: 1/4″ cell – 1/2″ thick – 4 mil foil – 5052 alloy – non perforated
Test Rate: 1.0″/min. (cross head speed)
| Test Temperature |
AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2M<br>(.06 lb/ft<sup>2</sup>) |
| -67°F |
20 |
17 |
| 75°F |
23 |
26 |
| 180°F |
18 |
19 |
| 250°F |
9 |
9 |
2. Cure Cycle: 250°F, 60 minutes, 30 psi, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Skin and Core: Same as (1.) above
Test Rate: 1.0″/min. (cross head speed)
| Test Temperature |
AF 163-2K Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
– |
15 |
33 |
| 75°F |
15 |
15 |
39 |
| 160°F |
– |
12 |
34 |
3. Cure Cycle: 235°F, 90 minutes, 35 psig, 5°F/min.
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Skins: 2024 T-3 0.020″ aluminum – FPL etched
Core: Same as (1.) above
Test Rate: 3″/min. (cross head speed)
| Adhesive |
75°F Peel Strength (in·lb/in) |
| Scotch-Weld AF 163-2K Film (.06 lb/ft<sup>2</sup>) |
22 |
| Scotch-Weld AF 163-2K Film (.085 lb/ft<sup>2</sup>) |
35 |
| Scotch-Weld AF 163-2M Film (.06 lb/ft<sup>2</sup>) |
24 |
| Scotch-Weld AF 163-2M Film (.085 lb/ft<sup>2</sup>) |
35 |
| Scotch-Weld AF 163-2OST Film (.06 lb/ft<sup>2</sup>) |
20 |
4. Cure Cycle: 270°F, 60 minutes, 50 psi, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Skins: Same as (3.) above
Core: 3/16″ cell – 1/2″ thick – 5052 alloy – non perforated
Test Rate: 1.0″/min. (cross head speed)
| Test Temperature |
AF 163-2U<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2U<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K<br>(.06 lb/ft<sup>2</sup>) |
| -67°F |
– |
– |
33 |
| 75°F |
15 |
36 |
31 |
| 160°F |
– |
– |
24 |
J. Metal to Honeycomb Flatwise Tensile (psi) – 3M Test Method C-251
1. Cure Cycle: 250°F, 60 minutes, 20 psig, 1°F/min. rise rate
Primer for Skins: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917
Metal: Skins: 2024 T-3 aluminum – Chromic Acid Anodized
Core: 1/4″ cell – 1/2″ thick – 4 mil foil – 5052 alloy – non perforated
Flatwise Tensile Strength (psi)
| Test Temperature |
AF 163-2K Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
1700 |
1800 |
| 75°F |
1200 |
1400 |
| 180°F |
700 |
800 |
| 250°F |
260 |
290 |
2. Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
Primer for Skins: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal & Core: same as (1.) above-67
Flatwise Tensile Strength (psi)
| Test Temperature |
AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-3M Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
1400 |
– |
1900 |
| 75°F |
935 |
1150 |
1500 |
| 160°F |
625 |
750 |
990 |
3. Cure Cycle: 235°F, 90 minutes, 35 psig, 5°F/min. rise rate
Primer for Skins: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: Skins; 2024 T-3 aluminum – FPL etched
Core: same as (1.) above
Flatwise Tensile Strength (psi)
| Test Temperature |
AF 163-2U Film<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2U Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
AF 163-2OST Film<br>(.06 lb/ft<sup>2</sup>) |
| 75°F |
800 |
1200 |
1150 |
1150 |
1150 |
| 180°F |
500 |
700 |
650 |
800 |
625 |
| 250°F |
– |
– |
250 |
275 |
250 |
K. Metal to Honeycomb Beam Flexure Strength (lbs) – 3M Test Method C-250
Cure Cycle: 250°F, 60 minutes, 30 psi, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Bare 0.063″ thick aluminum – Chromic Acid Anodized
Core: 1/4″ cell – 1/2″ thick – 5052 Alloy – 4 mil foil – non perforated
| Test Temperature |
AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.085 lb/ft<sup>2</sup>) |
| -67°F |
3050 |
3150 |
3200 |
| 75°F |
2850 |
3160 |
3200 |
| 160°F |
2100 |
2600 |
2860 |
L. Typical Metal to Metal Fatigue Resistance:
1. Wide Area Blister Shear Type Specimens (psi) – 3M Test Method C 2232 (1/4″ overlap)
Cure Cycle: 235°F, 90 minutes, 35 psi, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare .063″ thick aluminum – FPL etched
Max. Stress: 1500 psi | Stress Ratio: 0.1 | Rate: 1800 cycles/min.
Test Temperature: 75 ± 5°F
Results: Under these conditions Scotch-Weld AF 163-2 Films have yielded
greater than 107 cycles without adhesive failure
2. Double Lap Strap: 6, 4 Titanium Specimens
Cure Cycle: 250°F, 60 min., 20 psig, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural | Adhesive: 3M™ Scotch-Weld™ Structural
Adhesive Primer EC-3917 Adhesive Film AF 163-2K (.06 lb/ft2)
Metal: 6, 4 Titanium alloy – phosphate fluoride etched
Center Adherends 1″ x 45/8” x 0.125″
Straps 1″ x 15/8” x .063″
Stress Ratio = 0.1 Rate = 1800 cycles/min. Test temp. = 75°F ± 5°F
Shear Area – 1.5 in2
| Max. Stress (psi) |
Avg. Life (Cycles) |
| 4500 |
1.58 x 10<sup>4</sup> |
| 4000 |
5.28 x 10<sup>4</sup> |
| 3500 |
4.75 x 10<sup>5</sup> |
| 3000 |
2.67 x 10<sup>6</sup> |
| 2200 |
1.03 x 10<sup>7</sup> +<br>
(No failure; test discontinued) |
M. Typical Creep Resistance
1. Metal to Metal Wide Area Shear Specimens (psi) – 3M Test Method C-2232
Cure Cycle: 235°F, 90 minutes, 35 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare .063″ thick aluminum – FPL etched
| Adhesive |
Creep after 192 hours<br>75°F @ 1600 psi |
Creep after 192 hours<br>180°F @ 800 psi |
<div style=”display:flex; justify-content:space-between;”>
<span>Scotch-Weld F 163-2K Film</span><span>.06 lb/ft<sup>2</sup><br>.085 lb/ft<sup>2</sup></span></div> |
Less than 0.0003″<br>Less than 0.0003″ |
<.0012″<br><.0015″ |
<div style=”display:flex; justify-content:space-between;”>
<span>Scotch-Weld F 163-2K Film</span><span>.03 lb/ft<sup>2</sup><br>.06 lb/ft<sup>2</sup></span></div> |
Less then 0.0003″<br>Less than 0.0003″ |
Less then 0.0003″<br>Less than 0.0003″ |
2. Metal to Metal Overlap Shear Specimens (psi) – 3M Test Method C-244
Cure Cycle: 250°F, 60 minutes, 30 psi, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 7075 T-6 Clad .063″ thick aluminum – Chromic Acid Anodized
| Adhesive |
Creep after 192 hours<br>78°F @ 1600 psi |
Creep after 192 hours<br>160°F @ 1200 psi |
| Scotch-Weld AF 163-2M Film .085 |
Less than 0.0003″ |
Less than 0.0003″ |
3. Metal to Honeycomb Creep Deflection in Flexure – (Mil-A-25463 method)
Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Bare 0.063″ thick aluminum – Chromic Acid Anodized
Core: 1/4″ cell – 1/2″ thick – 5052 Alloy – 4 mil foil – non perforated
| Adhesive |
Deflection after 192 hours<br>75°F Test<br>Load: 970 lbs |
Deflection after 192 hours<br>75°F Test<br>Load: 1500 lbs |
Deflection after 192 hours<br>160°F Test<br>Load: 970 lbs |
Deflection after 192 hours<br>160°F Test<br>Load: 1500 lbs |
Deflection after 192 hours<br>180°F Test<br>Load: 970 lbs |
Deflection after 192 hours<br>180°F Test<br>Load: 1500 lbs |
| AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
.0005″ |
– |
.003″ |
– |
.005″ |
– |
| (.085 lb/ft<sup>2</sup>) |
– |
.0011″ |
– |
.006″ |
– |
.017″ |
N. Typical Bond Strengths on Other Substrates
Adhesive: 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2M Wt. .045
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
|
3M Test Method C-244<br><div style=”display:flex; justify-content:space-around;”><span>L/T = 8</span><span>Shear (psi)</span></div> |
3M Test Method C-260<br>6″/min<br>Floating Roller<br>Bell Peel (piw) |
| <strong style=”font-weight:bold;”>Substrates</strong> |
<strong style=”display:flex; justify-content:space-around; font-weight:bold;”><span>75°F</span><span>180°F</span></strong> |
<strong style=”font-weight:bold;”>75°F</strong> |
| 7575 T6 Clad<br>FPL – Each |
.063″ Thick Metal<div style=”display:flex; justify-content:space-around;”><span>6050</span><span>3500</span></div> |
.025″ Thick Metal Peel Skin<br>65 |
| 6, 4 Titanium<br>Phosphate Fluoride Etch |
.063″ Thick Metal<div style=”display:flex; justify-content:space-around;”><span>6825</span><span>3650</span></div> |
.014″ Thick Metal Peel Skin<br>45 |
| 301 Stainless Steel<br>Phosphate Fluoride Etch |
.063″ Thick Metal<div style=”display:flex; justify-content:space-around;”><span>6260</span><span>3750</span></div> |
.020″ Thick Metal Peel Skin<br>60 |
| Epoxy FRP<br>(“Scotchply” Brand Type 116)<br>Abrade & degrease – unprimed |
.150″ Thick Skin<br><div style=”display:flex; justify-content:space-around;”><span>4300*</span><span>2300*</span></div> |
-<br><br>- |
O. MMM-A-132B Type I Test Data
Cure Cycle: 250°F – 90 minutes – 25 psig – 4 to 5°F per minute rise rate.
| MMM – A – 132B Test |
MMM – A – 132B Type 1<br>Class 2 Requirements |
Scotch-Weld AF 163-2U Film<br>(.06 lb/ft<sup>2</sup>) with<br>Scotch-Weld EC-3960 Primer |
| 75°F shear |
3500 psi |
6377 psi |
| 180°F shear |
2000 psi |
4003 psi |
| -67°F shear |
3500 psi |
6600 psi |
| 75°F shear after 30 days at 120°F and 95-100% RH |
3500 psi |
6067 psi |
| 75°F shear after immersion |
– |
– |
| a.) 7 days in MIL-H-83282 |
3250 psi |
6067 psi |
| b.) 7 days in MIL-T-5624 |
3250 psi |
6190 psi |
| 75°F Fatigue |
750 psi 10<sup>6</sup> |
No Failure |
| 75°F creep, 1600 psi – 192 hours |
0.015″ maximum |
0 |
| 180°F creep, 800 psi – 192 hours |
0.015″ maximum |
0.0002″ |
| Blister Detection @ 75°F |
3250 psi |
5057 pai |
| T-Peel @ 75°F |
20 lb/in |
38 lb/in |
P. MIL-A-25463B Type I Test Data
| Description<br>Test Number |
MIL-A-25463B Type 1<br>Class 2 Requirements |
Scotch-Weld AF 163-2U Film<br>(.06 lb/ft<sup>2</sup>) with<br>Scotch-Weld EC-3960 Primer |
| Sandwich Peel (in·lb/in)<br>Normal Temp.<br>180 ± 5°F<br>-67 ± 2°F |
<br>12.5<br>10<br>10 |
<br>27.6<br>23.8<br>24.0 |
| Flatwise Tensile Strength (psi)<br>Normal Temp.<br>180 ± 5°F<br>-67 ± 2°F |
<br>750<br>400<br>800 |
<br>1408<br>743<br>1858 |
| Flexural Strength (lbs)<br>Normal Temp.<br>180 ± 5°F<br>-67 ± 2°F |
<br>2100<br>1275<br>2150 |
<br>3302<br>2263<br>3163 |
| Flexural Strength after 192 hours Exposure (lbs)<br>180 ± 5°F |
<br>1500 |
<br>2648 |
| Creep Deflection flexure when loaded for max<br>192 hours max. deflection (inch)<br>Normal Temp. 1000 lbs. load (inch)<br>180 ± 5°F/800 lbs. load (inch) |
<br><br>0.025<br>0.05 |
<br><br>0.006<br>0.0033 |
| Flexure Strength after 30 days exposure (lbs)<br>To 95 to 100% RH at 120 ± 2°F<br>To turbine fuel JP -4 of MIL-T-5624 |
<br>1800<br>1800 |
<br>3082<br>3162 |
III. Typical Performance after Environmental Exposure
A. Metal to Metal Overlap Shear Strength (psi) – 3M Test Method C-244
Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 7075 T-6 Clad 0.063″ thick – Chromic Acid Anodized
Adhesive: 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2M
(.085 lb/ft2)
Specimens: Precut to 1″ width prior to exposure
Test Temperature: 75°F
| Environmental Exposure |
Shear Strength (psi) |
| 1. Control (No Exposure) |
6345 |
| 2. 7 day immersion in JP-4 |
6570 |
| 3. 7 day immersion in MIL-F-5566 |
6365 |
| 4. 7day immersion in MIL-H-5606 |
6465 |
| 5. 7 day immersion in Type III Hydrocarbon |
6510 |
| 6. 30 day water immersion |
5860 |
| 7. 30 day 5% Salt Spray Exposure |
5930 |
| <div style=”display:flex;”><span style=”margin-right:0.7em;”>8. Cyclic Humidity Exposure</span><div>a) 15 Cycles<br>b) 30 Cycles<br>c) 45 Cycles</div></div> |
6245<br>5510<br>5655 |
B. Metal to Metal Blister Detection Shear (psi) – 3M Test Method C-265
Cure Cycle: 270°F, 40 psi, 60 minutes, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Base .063″ thick aluminum – FPL etch
Adhesive: Scotch-Weld AF 163-2K Film (.06 lb/ft2)
Specimens: Precut to 1.0″ width and notched prior to exposure
Test Temperature: 75°F
| Environmental Exposure |
Shear Strength (psi) |
| 1. Control (No Exposure) |
5095 |
| 2. 7 day immersion in JP-4 |
5065 |
| 3. 7 day immersion in MIL-F-5606 |
5050 |
| 4. 7 day immersion in MIL-L-7808 |
5005 |
| 5. 30 day Exp. 120°F – 95 to 100% RH |
4980 |
| 6. 30 day Exp. to 5% Salt Spray |
5030 |
C. Metal to Metal Floating Roller (Bell) Peel (piw) – 3M Test Method C-260
Cure Cycle: (same as B.)
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal: 2024 T-3 Bare .025″ thick to .063″ thick aluminum – FPL etched
Adhesive: 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2K (.06 lb/ft2)
Specimens: Precut to 1″ wide before exposure
Test Temperature: 75°F
Peel Rate: 6″/min.
| Environmental Exposure |
Peel Strength (piw) |
| 1. Control (No Exposure) |
82 |
| 2. 7 day immersion in JP-4 |
83 |
| 3. 7 day immersion in Mil-H-5606 |
85 |
| 4. 7 day immersion in Mil-L-7808 |
85 |
| 5. 30 day Exposure 120°F and 95 to 100% RH |
80 |
| 6. 30 day 5% Salt Spray Exposure |
82 |
D. Metal to Metal Wide Area Blister Detection Shear (psi) – 3M Test Method C-2232
Cure Cycle: 235°F, 90 minutes, 35 psi, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare .063″ thick – FPL etched
Specimens: Precut to 1″ width and notched prior to exposure
Test Temperature: 75°F
| Environmental Exposure |
AF 163-2OST Film<br>(.03 lb/ft<sup>2</sup>) |
AF 163-2OST Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.06 lb/ft<sup>2</sup>) |
AF 163-2K Film<br>(.085 lb/ft<sup>2</sup>) |
| 1. Control (No Exposure) |
5405 |
5280 |
5105 |
5115 |
| 2. 7 day JP-4 minimum (75°F) |
5345 |
5255 |
5225 |
5079 |
| 3. 7 day Type III Hydrocarbon immersion (75°F) |
5340 |
5315 |
5214 |
5135 |
| 4. 7 day Skydrol 500B immersion (150°F) |
5400 |
5470 |
5214 |
5135 |
| 5. 30 day 5% Salt Spray |
5330 |
5105 |
4865 |
4635 |
| 6. 30 day 120°F 95 – 100% RH |
5360 |
5200 |
4940 |
4735 |
E. Metal to Metal GISCC – Crack Extension at 140°F and 95-100% RH – 3M Test Method C-295
Cure Cycle: 235°F, 90 minutes, 35 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Metal: 2024 T-3 Bare 0.5″ thick aluminum – phosphoric acid anodized
Specimen: DCB specimen precut to 1″ width prior to exposure
| Exposure |
AF 163-2OST Film<br>(in·lb/in<sup>2</sup>) |
AF 163-2OST Film<br>(in·lb/in<sup>2</sup>) |
AF 163-2K Film<br>(in·lb/in<sup>2</sup>) |
AF 163-2K Film<br>(in·lb/in<sup>2</sup>) |
| Film Weight (lb/ft<sup>2</sup>) |
.03 |
.06 |
7.2 |
8.5 |
| 2500 hours |
6.4 |
7.5 |
7.2 |
8.5 |
F. Metal to Honeycomb Beam Flexure Strength (lb) – 3M Test Method C-250
Cure Cycle: 250°F, 60 minutes, 30 psi, 5°F/min.
Primer for Skins: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal Skins: 2024 T-3 Bare .063″ thick aluminum – Chromic Acid Anodized
Core: 1/4″ cell – 1/2″ thick – 4 mil foil – 5052 Alloy – non perforated
Adhesive: 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2M (.045 lb/ft2)
| Environmental Exposure |
75°F Flexural Strength (lb) |
| 1. Control (No Exposure) |
2850 |
| 2. 30 day immersion in Type III Hydrocarbon |
2800 |
| 3. 30 day 5% Salt Spray |
2800 |
| 4. *Cyclic Exposure – 45 Cycles |
2900 |
G. Metal to Honeycomb Flatwise Tensile Strength – 3M Test Method C-251
conditions as per (F.) above
| Environmental Exposure |
75°F Flatwise Tensile Strength (psi) |
| 1. Control (No Exposure) |
935 |
<div style=”display:flex;”>2. <span style=”margin-right:0.7em;”>Cyclic Exposure:</span> <div>15 Cycles*<br> 865
45 Cycles* </div></div> |
865<br>870 |
IV. Typical Performance after Open Time at 90°F and 75% RH
Cure Cycle: 250°F, 60 minutes, 30 psig, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Metal Skin Prep: Chromic Acid Anodize
Core: 1/4″ cell – 1/2″ thick – 4 mil foil – 5052 Alloy – non-perforated
Exposure Method: Adhesive applied to Primed Skin with liners removed and
exposed open face
A. 75°F Overlap Shear on 7075-T6 Clad .063″ Thick – 3M Test Method C-244
| Exposure Time |
Scotch-Weld AF 163-2M Film (.045 lb/ft<sup>2</sup>) |
| 0 |
6300 psi |
| 7 days |
6400 psi |
| 15 days |
6500 psi |
B. Floating Roller (Bell) Peel on 7075 T-6 Clad .025″ to .063″ aluminum – 3M Test Method C-260
| Exposure Time |
AF 163-2M Film (.045 lb/ft<sup>2</sup>)<br>-67°F Test |
AF 163-2M Film (.045 lb/ft<sup>2</sup>)<br>75°F Test |
AF 163-2M Film (.045 lb/ft<sup>2</sup>)<br>160°F Test |
| 0 |
57 piw |
55 piw |
46 piw |
| 7 days |
55 piw |
61 piw |
50 piw |
| 15 days |
59 piw |
55 piw |
44 piw |
C. 75°F Honeycomb Peel 2024 T-3 Bare .020 Aluminum Skins (in•lb/in) – 3M Test Method C-245
| Exposure Time |
AF 163-2M<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M<br>(.085 lb/ft<sup>2</sup>) |
| 0 |
15 in•lb/in |
39 in•lb/in |
| 7 days |
15 in•lb/in |
31 in•lb/in |
| 15 days |
11 in•lb/in |
26 in•lb/in |
D. 75°F Honeycomb Flatwise Tensile 2024 T-3 Bare Aluminum Skins (psi) – 3M Test Method C-251
| Exposure Time |
AF 163-2M Film<br>(.045 lb/ft<sup>2</sup>) |
AF 163-2M Film<br>(.085 lb/ft<sup>2</sup>) |
| 0 |
935 |
1500 |
| 7 days |
1050 |
1600 |
| 15 days |
1000 |
1570 |
V. Typical Metal to Metal 200°F Cure Performance:
Cure Cycle: 200° ± 5°F, 50 psi, 1°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3924B
Scotch-Weld AF 163-2K Film (.06 lb/ft2)
| Cure Time |
Blister Detection Shear<br>3M Test Method C-265 |
Blister Detection Shear<br>3M Test Method C-265 |
Floating Roller (Bell) Peel<br>3M Test Method C-260 |
|
75°F |
180°F |
75°F |
| A. 2 hours |
4120 psi |
1750 psi |
68 piw |
| B. 4 hours |
4580 psi |
1750 psi |
76 piw |
| C. 6 hours |
4700 psi |
3280 psi |
77 piw |
VI. Typical Vacuum Cure Performance
Cure: 250°F, 60 minutes, 5°F/min. rise rate
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3960
Overlap Shear: 3M Test Method C-244: 2024 T-2 .063″ thick aluminum
Honeycomb Peel: 3M Test Method C-245: 1/4″ cell Core – 2024 T-3 .020″ thick
aluminum skins
Peel Rate: 3″/min. (cross head speed)
| Pressure or Vaccum |
AF 163-2K Film .06<br>Overlap Shear 75°F (psi) |
AF 163-2K Film .06<br>Honeycomb Peel 75°F (in•lb/3″) |
AF 163-2M Film .06<br>Overlap Shear 75°F (in•lb/3″) |
AF 163-2M Film .06<br>Honeycomb Peel 75°F (in•lb/3″) |
AF 163-2OST Film .03<br>Overlap Shear 75°F (psi) |
| A. 25 psig positive pressure |
5700 |
77 |
6200 |
74 |
5600 |
| B. 9-11 Inches Hg |
5700 |
65 |
6000 |
75 |
5200 |
| C. 16-18 Inches Hg |
3800 |
54 |
6000 |
67 |
5500 |
| D. 24-26 Inches Hg |
3300 |
45 |
4800 |
59 |
5200 |
VII. Effect of rise rate on Typical Metal to Metal Properties
Primer: 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917
Metal Prep: Chromic Acid Anodize
Metal: T-Peel 3M Test Method C-252: 2024 T-3 Clad .020″ aluminum
OLS 3M Test Method C-244: 2024 T-3 Clad .063″ aluminum
T-Peel Rate: 20″/min.
Adhesive: 3M™ Scotch-Weld™ Structural Adhesive Film AF 163-2K .06
| <strong style=”font-weight:bold;”>Cure Temperature</strong> |
250°F |
250°F |
250°F |
| <strong style=”font-weight:bold;”>Cure Time</strong> |
60 min |
60 min |
60 min |
| <strong style=”font-weight:bold;”>Cure Pressure</strong> |
20 psig |
20 psig |
50 psig |
| <strong style=”font-weight:bold;”>Rise Rate</strong> |
1°F/min |
8°F/min |
20°F/min |
| <strong style=”font-weight:bold;”>75°F Overlap Shear</strong> |
5760 psi |
5840 psi |
5460 psi |
| <strong style=”font-weight:bold;”>75°F T-Peel</strong> |
45 piw |
46 piw |
45 piw |
