3M AF126-2
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg
Main features
- Low Temperature Cure
- Controlled Low Flow Processing
- Clean Low Tack Layup
Product Description
3M Scotch-Weld Structural Adhesive Film AF 126-2 is a toughened epoxy structural adhesive film for bonding prepared metal, composite, and honeycomb assemblies. The matte nonwoven scrim-supported construction is available in several nominal weights and calipers, with low tack that supports clean handling during layup. Low flow during cure helps control the bondline, and the film can cure at temperatures as low as 82 deg C. Film weight, primer, metal preparation, pressure, and cure schedule define the complete bonding process.
Key features
- Low Temperature Cure: The film can cure at temperatures as low as 82 deg C.
- Low Flow Bondline Control: Controlled flow helps maintain adhesive placement during cure.
- Low Tack Layup Handling: The supported film is designed for clean positioning before cure.
Applications
Structural bonding of prepared metals, composites, and honeycomb sandwich assemblies.
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Values are listed by AF 126-2 film weight to preserve configuration context.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Film construction | Matte nonwoven scrim supported | - | AF 126-2 |
| Nominal areal weight options | 147; 294; 392 | g/m2 | 0.030; 0.060; 0.080 lb/ft2 variants |
| Nominal caliper options | 0.13; 0.25; 0.38 | mm | Corresponding weight variants |
| Color by weight | Blue-gray; blue-gray; blue | - | Corresponding weight variants |
| Volatile content | Less than 1 | % | As supplied |
After-processing / final-state properties
Cured bond averages retain film-weight and EC-2320 primer context.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile shear at 24 deg C, 0.030 wt | 32.8 | MPa | Average with EC-2320 primer |
| Tensile shear at 24 deg C, 0.060 wt | 35.8 | MPa | Average with EC-2320 primer |
| Tensile shear at 24 deg C, 0.080 wt | 38.5 | MPa | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.030 wt | 125 | N/25 mm | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.060 wt | 182 | N/25 mm | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.080 wt | 153 | N/25 mm | Average with EC-2320 primer |
