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🔧 Seal it once, trust it forever – the pro’s choice for leak-proof pipes!
LOCTITE SI 5331 is a high-performance silicone-based liquid thread sealant designed for hot and cold water plastic and metal pipes. It forms a permanently elastic, vibration-resistant seal that withstands temperatures from -50°C to 150°C. Certified safe for drinking water systems, this single-component paste cures via humidity in 96 hours, ensuring secure, leak-proof connections ideal for industrial, agricultural, and domestic plumbing applications.
| ASIN | B0052EGAXK |
| Best Sellers Rank | 77,239 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,053 in Sealers 7,151 in Nails, Screws & Fasteners |
| Brand | Loctite |
| Colour | White |
| Compatible Material | Metal |
| Container Type | Tube |
| Country Of Origin | Italy |
| Customer Reviews | 4.4 out of 5 stars 256 Reviews |
| Full Cure Time | 96 Hours |
| Included Components | 1x LOCTITE SI 5331 |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | LOCTITE SI 5331 |
| Item Volume | 1200 Millilitres |
| Item Weight | 100 g |
| Item form | Paste |
| Manufacturer | Loctite |
| Manufacturer Part Number | 2061031 |
| Material | Metal, Plastic, Silicone |
| Model Number | 5331 |
| Number of Pieces | 12 |
| Other Special Features of the Product | Strong |
| Special feature | Strong |
| Specific Uses For Product | Craft |
| Specific uses for product | Craft |
| Tensile Strength | 175 Pounds Per Square Inch |
| Viscosity Level | Medium |
| Water Resistance Level | Not Water Resistant |
A**N
The best leak prevention on swimming pool fittings
Having tried using Loctite 55 on a swimming pool MPV and having the valve still leak at the threaded joints, I opted to try out this liquid sealant. I put the liquid on both the make and female joints and easily screwed them in by hand. I waited 24hr before I turned on the pump & when I did, there were no leaks from any of the joints. I’ve bought another tube as backup, I’ll be using this stuff instead of PTFE Tape and silicone from now on.
O**K
Good result
Used on the thread of a plastic end of steel tap in kitchen. Spread over threads of both male and female threads. Allowed to cure for 24hrs and so far plastic end of tap is remaining in place whereas previously it would fall off with water force.
G**Y
Great product thank you loctite
For sealing threaded joints between metal and plastic pipe fittings. There is nothing better and it's WRAS approved for when dealing with potable water. Simple perfect.
T**G
Inaccurate description - YOU ONLY RECEIVE 1 TUBE NOT 12
Do NOT ORDER if you think you are getting 12 x 100ml as advertised. You will only receive ONE tube NOT 12
A**E
Five Stars
Just the job
M**.
False description.
Description is 12x100ml. Only 1x100ml delivered.
D**N
Parfait
Livraison et produit parfait
C**N
Recieved ONLY 2 tubes!
Only received 2 tubes! Make this right and ill order more and update this rating.
R**R
Zuverlässige und vielseitige Gewindedichtung
Anwendung: LOCTITE SI 5331 wird vor dem Zusammenschrauben der Rohrgewinde auf die Gewindegänge aufgetragen. Die Dichtmasse härtet bei Luftkontakt aus und bildet eine elastische Dichtung, die die Verbindung gegen Wasser, Gas und andere Medien abdichtet. Tipp: Für optimale Ergebnisse sollten die Gewinde sauber und trocken sein. Fazit: LOCTITE SI 5331 ist eine zuverlässige und vielseitige Gewindedichtung, die sich für eine Vielzahl von Anwendungen eignet. Sie ist einfach anzuwenden, dicht und sicher und bietet eine lange Lebensdauer. Empfehlung: Ich kann LOCTITE SI 5331 allen empfehlen, die eine sichere und dauerhafte Abdichtung von Rohrgewindeverbindungen suchen.
M**O
Semplice da usare
Ottimo e semplice da usare
P**E
Misleading information
Leverancier heeft in de omschrijving 12x100ml staan, echter ze sturen er maar één op. Prijs is daarom te hoog, als je met de leverancier in discussie gaat over deze omschrijving geven ze de opmerkingen "je hebt er maar één besteld*, bij andere leveranciers betaal je maar €22 voor één tube. Hier dus niet kopen!
Trustpilot
2 weeks ago
3 days ago