Technical Datasheet 

Product Performance Note: The following technical information and data should be considered representative (continued) or typical only and should not be used for specification purposes. 

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  

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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  

2. Cyclic Exposure: 15 Cycles* 45 Cycles*  865 870  

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*Each Cycle: 16 hours at 125°F and 95-100% RH followed by 8 hours at -67°F. 

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 

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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/ft2)  

0  6300 psi  

7 days  6400 psi  

15 days  6500 psi  

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B. Floating Roller (Bell) Peel on 7075 T-6 Clad .025" to .063" aluminum – 3M Test Method C-260 

Exposure Time  Scotch-Weld AF 163-2M Film (.045 lb/ft2)  

-67°F Test  75°F Test  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