LOCTITE® SI 5331
Known as LOCTITE 5331
Features and Benefits
A 1-part, silicone-based thread sealant for metal and plastic pipe systems carrying hot or cold water.
LOCTITE® SI 5331 is a low-strength, general-purpose thread sealant for locking and sealing plastic and metal fittings carrying hot or cold water, e.g. industrial and agricultural plastic water pipe systems or drainage systems. This acetoxy silicone-based medium-viscosity sealant cures at ambient temperature to form a flexible seal. It’s WRC listed, meets BS 6920 for potable water: 0706521 DVGW approval and is tested in accordance with EN 751-1; P1 NSF Reg. No.: 123620.
- Ideal for fittings carrying hot or cold water
- Works on metal or plastic
- WRC listed, meets BS 6920 for potable water: 0706521
- P1 NSF Reg. No.: 123620
- DVGW approval, tested in accordance with EN 751-1
Documents and Downloads
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Technical Information
| Agency approvals / certificates / specifications | DVGW, NSF, WRAS |
| Breakaway torque, Steel M10 | 1.5 N·m (13.0 in./lb. ) |
| Color | White |
| Key characteristics | Disassembly: easy disassembly |
| Operating temperature | -55.0 - 150.0 °C (-65.0 - 300.0 °F ) |
| Recommended for use with | Metal, Plastic |
| Viscosity | 50000.0 mPa·s (cP) |
LOCTITE® SI 5331
A 1-part, silicone-based thread sealant for metal and plastic pipe systems carrying hot or cold water.