LOCTITE® AA 331
Known as Loctite 331 Structural Adhesive
Features and Benefits
This toughened, medium-viscosity, acrylic-based adhesive paste is designed for bonding metal substrates, and ideal for magnet bonding.
LOCTITE® AA 331 is a 1-part, toughened, acrylic-based structural paste with medium viscosity. Specially designed for bonding metal substrates, it’s perfect for DC motor assembly, magnet bonding, and bonding of pre-coated sheet metal. It cures in <2 minutes via activator, and you can expect high shear- and impact-strength with excellent environmental and chemical resistance. It requires activator LOCTITE® SF 7387.
- Non-corrosive
- Bonds metal to metal
- High temperature, chemical & environmental resistance
- High shear & impact strength
Documents and Downloads
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Technical Information
| Applications | Structural bonding |
| Color | Light yellow |
| Cure type | Activator cure, Heat cure |
| FEA (finite element analysis) | Finite strain, Viscoelastic |
| Key characteristics | No mix, Temperature: high temperature, Toughened, Viscosity: medium viscosity |
| Number of components | 1 part |
| Physical form | Paste |
LOCTITE® AA 331
This toughened, medium-viscosity, acrylic-based adhesive paste is designed for bonding metal substrates, and ideal for magnet bonding.