Choosing the correct structural adhesive depends entirely on your installation environment and substrate materials. Araldite 2050 and 2051 are ultra-fast curing, two-component acrylic adhesives designed specifically for extreme conditions; Araldite 2050 excels in ultra-low temperatures and wet environments, while Araldite 2051 is optimized for high humidity and warm climates. In contrast, Araldite 2015 is a toughened, two-component epoxy adhesive with a significantly longer open time, making it ideal for the precise positioning of sensor mounts, composite bonding, and heavy-duty structural joints requiring high vibration resistance.
| Feature / Specification | Araldite 2050 | Araldite 2051 | Araldite 2015 |
| Chemical Base | Acrylate (2-component) | Acrylate (2-component) | Epoxy (2-component) |
| Primary Advantage | Ultra-fast cure in sub-zero/wet conditions | Ultra-fast cure in warm/humid conditions | High vibration resistance & long work life |
| Pot Life / Work Time | 2 to 3 minutes (at 23°C) | 3 to 5 minutes (at 23°C) | 30 to 40 minutes (at 23°C) |
| Time to Fixture / Handling | ~15 minutes (at 23°C) | ~15 minutes (at 23°C) | ~4 hours (at 23°C) |
| Cure Temperature Range | -20°C to +25°C | 0°C to +40°C | +10°C to +40°C |
| Service Temperature | -40°C to +120°C | -40°C to +120°C | -40°C to +80°C |
| Substrate Compatibility | Metals, plastics, composites | Metals, plastics, composites | Composites, metals, GRP, SMC |
| Viscosity & Behavior | Non-sag paste | Non-sag paste | Thixotropic paste (no slump) |
| Color | Pale yellow | Pale yellow | Grey |
