Description
LOCTITE® SI 5331 is designed for the locking and sealing of plastic and metal fittings carrying hot or cold water, e.g. industrial and agricultural plastic water pipe systems or drainage systems. It carries certain approvals and certifications: WRC listed, meets BS 6920 for potable water: 0706521 DVGW approval, tested in accordance with EN 751-1; P1 NSF Reg. No.: 123620
- Pack size: 100 ml tube (Loctite no. 2061031)
Application
- Ideal for use on threaded plastic or plastic/metal fittings carrying hot or cold water.
Characteristics
- General purpose liquid thread sealant for sealing metal and plastic threads in fittings carrying hot or cold water
- WRC listed, meets BS 6920 for potable water: 0706521
- Locks connection against vibration-induced loosening
- P1 NSF Reg. No.: 123620
- DVGW approval, tested in accordance with EN 751-1
Technical specifications
| Agency Approvals / Specifications | DVGW, NSF, WRAS |
| Breakaway Torque, Steel M10 | 1.5 N·m (13.0 in./lb. ) |
| Colour | White |
| Key Characteristics | Disassembly: Easy Disassembly |
| Operating Temperature | -55.0 – 150.0 °C (-65.0 – 300.0 °F ) |
| Substrates | Metal, Plastic |
| Viscosity | 50000.0 mPa·s (cP) |
Hazard Information (GHS Classification)

Signal Word: Danger
Hazard Statements (H-Sets)
- Causes skin irritation.
- Causes serious eye damage.
- May cause damage to organs through prolonged or repeated exposure.
Precautionary Statements (P-Sets)
Prevention:
- Wear eye protection/face protection.
Response:
- IF ON SKIN: Wash with plenty of soap and water.
- IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Other Information
- Self-classification according to Article 12(b) of (EU) 1272/2008.
- Substances present in a concentration ≥ the concentration limit for depiction in Section 3 and fulfill the criteria for PBT/vPvB, or were identified as endocrine disruptors (ED):
- Dodecamethylcyclohexasiloxane (540-97-6) – PBT/vPvB
- Octamethylcyclotetrasiloxane (556-67-2) – PBT/vPvB
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






harper23 –
Pleasant to use at home.
greta_b –
No unpleasant smell; I really like that.
Noah R. –
Received quickly. Punctual service. Excellent quality. Everything OK.
gabriele_it –
Excellent-quality product. Simple to install. Very functional.
chris_77 –
Works perfectly. Top quality, fast delivery.