3M AF126-3
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
- Green Supported Film Handling
Product Description
3M Scotch-Weld Structural Adhesive Film AF 126-3 is a green, toughened epoxy structural adhesive film for bonding prepared metal, composite, and honeycomb assemblies. Its matte nonwoven scrim-supported construction combines low tack for handling with low flow for bondline control during cure. The film can cure at temperatures as low as 82 deg C, supporting lower-temperature processing where the complete assembly permits it. Metal preparation, primer selection, applied pressure, and the full time-and-temperature 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 retain adhesive placement during cure.
- Green Supported Construction: The matte nonwoven scrim provides handling support during layup.
Applications
Structural bonding of prepared metals, composites, and honeycomb sandwich assemblies.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Film construction | Matte nonwoven scrim supported | - | AF 126-3 |
| Color | Green | - | As supplied |
| Nominal areal weight | 294 | g/m2 | 0.060 lb/ft2 |
| Nominal caliper | 0.25 | mm | 0.010 in |
| Volatile content | Less than 1 | % | As supplied |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile shear at 24 deg C | 37.2 | MPa | Average with EC-2320 primer |
| Tensile shear at 82 deg C | 18.8 | MPa | 10 min exposure; average with EC-2320 primer |
| Tensile shear at -55 deg C | 42.5 | MPa | 10 min exposure; average with EC-2320 primer |
| T-peel at 24 deg C | 156 | N/25 mm | Average with EC-2320 primer |
