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AF 3109-2 is a Scotch Weld Brand, thermosetting, non-volatile, modified epoxy film adhesive designed for bonding of honeycomb and metal to metal components where high strength at 149°C (300°F) is required. This unique product offers the following advantages.
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| - Cure temperatures as low as 107°C (255°F) and up to 177°C (350°F) |
| - Excellent performance in metal to metal and honeycomb sandwich applications over a temperature range of -55°C to + 149°C (-67°F to +300°F) |
| - Primer: Scotch Weld EC 3960 corrosion inhibiting primer can be used with this film. |
| - Improved resistance to high moisture pre-cure conditions. |
| - Freedom from volatile by-products during cure permits low pressure bonding |
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- Provided in 2 weight ranges. |
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-Unsupported version can be reticulated on honeycomb. |
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| Type |
Description |
Colour
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Blue |
| Kind of chemistry |
Modified epoxy |
| Floating roller peel |
45-48 piw (78.8 - 84.0 N/cm), -55°C (-67°F)
29-45 piw (50.8 - 78.8 N/cm), 24°C (75°F)
23-25 piw (40.3 - 43.8 N/cm), 149°C (300°F) |
| Overlap shear strength |
5200-5970 psi (35.8 - 41.1 MPa), -55°C (-67°F)
5600-6075 psi (38.6 - 41.9 MPa), -55°C (-67°F)
3100-3195 psi (21.4 - 22.0 MPa), 121°C (250°F)
1740-1833 psi (12.0 - 12.6MPa), 149°C (300°F) |
| Service temperature range |
-55°C to +149°C (-67°F to +300°F) |
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