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LOCTITE 5331 thread sealant (100 ml tube) - 2061034

LOCTITE
Supplier number: LOCTITE 2061034 | EAN 5010266238739
1 review(s)
22.80 tax incl.
€18.84 excl. VAT (incl. all environmental contributions)
On stock - immediately available

  • Ordered before 20:00 - delivered tomorrow 02/10/2026
  • Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
  • Delivery by DHL
  • Delivered from Belgium
✆ Talk to a specialist
  • GHS05 Corrosive
  • GHS08 Hazardous to long-term health

Loctite Buy & Get Promotion

Purchase Loctite products and receive a free Loctite product! Promotion valid from 01.10.2026 to 31.10.2026.

How does it work?

  • For a purchase value of €99 to €125 excl. VAT, receive FREE LOCTITE 55 thread sealing cord 50 m (IDH 528244) worth €9.99.
  • For a purchase value of more than €125 excl. VAT, receive FREE LOCTITE SF 7850 hand cleaner 400 ml (IDH 2098250) worth €13.21.
  • The free item is automatically added to your order. No registration is required.
  • The promotion is valid from 01.10.2026 to 31.10.2026.
  • Loctite Buy & Get deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Reliable thread sealing with Loctite SI 5331

Practical benefits
  • Flexible and leakproof joints: You create an elastic, durable barrier against leaks in hot and cold water pipe installations with this specialized silicone sealant.
  • Safe on diverse materials: You apply it confidently across both plastic and metal threaded fittings without risking chemical damage to fragile threads.
  • Effortless disassembly for servicing: Due to its low-strength formulation, you easily dismantle fittings using standard hand tools whenever maintenance or adjustments are needed.

In a nutshell

The right choise for

With the Loctite si 5331 thread sealant in a practical 100 ml tube, you create flexible, leakproof joints in hot and cold water installations. This liquid silicone sealant is engineered specifically for plastic threaded fittings and plastic-to-metal combinations, preventing leaks without damaging fragile threads during assembly. It cures at room temperature with atmospheric moisture, delivering immediate sealing against low water pressure. Approved for potable water under dvgw (EN 751-1) and wrc (BS 6920) standards, it is suitable for sanitary, drainage, and irrigation pipe systems. Its low-strength formulation protects connections against vibration-induced loosening while allowing effortless disassembly with standard hand tools whenever maintenance is required.



Product information FAQ Reviews
€22.80
In stock - tax incl.

Product information

Key features according to our expert

  • Net volume: 100 ml
  • EUH-statements: EUH441
  • Relative density: 1,14
  • ADR packing group: Not applicable
  • ADR class: Not applicable
  • Principal hazard property: GHS05 Corrosive
  • UN number: Not applicable
  • P-statements: P201; P273; P280; P302 + P352; P305 + P351 + P338
  • H-statements: H315; H318; H373
  • Hazard class: GHS05 Corrosive; GHS08 Health hazard
  • Physical state: Liquid
  • Flash point: > 100 °C
  • Packaging: Tube

Product 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
Precautionary statements
  • P201: Obtain special instructions before use.
  • P273: Avoid release to the environment.
  • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • P302 + P352: IF ON SKIN: Wash with plenty of water/…
  • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Hazard statements
  • H315: Causes skin irritation.
  • H318: Causes serious eye damage.
  • H373: May cause damage to organs through prolonged or repeated exposure.

All Features

Net volume
100 ml
Euh-statements
EUH441
Relative density
1,14
Adr packing group
Not applicable
Adr class
Not applicable
Principal hazard property
GHS05 Corrosive
Un number
Not applicable
P-statements
P201; P273; P280; P302 + P352; P305 + P351 + P338
H-statements
H315; H318; H373
Hazard class
GHS05 Corrosive; GHS08 Health hazard
Physical state
Liquid
Flash point
> 100 °C
Packaging
Tube
  • Brand LOCTITE
  • EAN 5010266238739
  • Supplier number LOCTITE 2061034

Frequently asked questions about this product

Answered by specialists
What is Loctite SI 5331 used for?
It is designed to lock and seal plastic threaded fittings and plastic-to-metal combinations carrying hot or cold water.
Is this thread sealant approved for potable water?
Yes, it holds approvals such as DVGW (EN 751-1) and WRC (BS 6920) for potable water applications.
How does Loctite SI 5331 cure?
It cures at ambient temperatures through atmospheric moisture to form a flexible, low-strength seal.
Can connections be disassembled after curing?
Yes, the low-strength formulation allows easy disassembly using standard hand tools.
How do you apply this sealant?
Apply the product directly from the tube to both male and female threads, then assemble the fittings.
Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

Chat with us
03 74 000 41 [email protected]

Reviews about LOCTITE 5331 thread sealant (100 ml tube) - 2061034

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08/12/2017

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