LOCTITE® 221
Features and Benefits
Low strength, low viscosity threadlocking adhesive. Formulated for small metal threads up to M12.
LOCTITE® 221 is a methacrylate-based threadlocking adhesive designed for low strength applications on small threads up to a maximum size of M12. Typical fixture times are 25, 20 and 210 min on steel, brass and stainless steel respectively. Offering low viscosity and a breakaway torque of 8.5 Nm, the product is designed for fasteners that require easy disassembly with standard hand tools.
- Low viscosity
- Designed for small threads
- Various pack sizes
- Low strength
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Technical Information
| Chemical basis / base | Methacrylate |
| Color | Purple |
| Fixture time | 20.0 - 210.0 min. |
| Recommended for use with | Metal: brass, Metal: steel, Metal: steel - stainless steel |
| Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 1, speed 20 rpm | 100.0 - 150.0 mPa·s (cP) |
LOCTITE® 221
Low strength, low viscosity threadlocking adhesive. Formulated for small metal threads up to M12.