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🔧 Lock it tight, fix it right — the pro’s secret weapon!
XPRO Gripaloc Liquid PTFE Pipe Thread Sealant & Locker is a 50ml professional-grade, non-drip liquid designed to seal and lock threaded metal pipe fittings. It offers medium strength, vibration resistance, and is WRAS and BS751-1 approved for potable water and gas applications, ensuring leak-proof, safe, and easy-to-maintain connections in plumbing and heating systems.





| Asin | B0DH89Q77N |
| Best Sellers Rank | 45,747 in DIY & Tools (See Top 100 in DIY & Tools) 703 in Sealers |
| Brand | Mika & Lily |
| Colour | Yellow |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.4 4.4 out of 5 stars (69) 4.4 out of 5 stars |
| Full Cure Time | 5 Minutes |
| Included Components | 1 x 50ml XPRO Gripaloc Liquid PTFE Thread Sealant Bottle |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 50 Millilitres |
| Manufacturer | Mika & Lily |
| Manufacturer Part Number | X99937 |
| Material | Acrylic Based Anaerobic Adhesive |
| Model Number | e8897003-a40f-4b35-8deb-510c4bd2b4ce |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Medium Strength, Non-Drip, Precision Application, Vibration Resistant, WRAS Approved |
| Specific Uses For Product | Heating Systems, Plumbing, Heating Systems, Threaded Metal Fittings, Radiator Valves, Shower Valves, Bib Taps, Potable Water Systems, Gas Fittings., Radiator Valves, Shower Valves, Threaded Metal Fittings |
| Unit Count | 50.0 millilitre |
| Viscosity Level | Medium |
| Water Resistance Level | Water Resistant |
User
Gripaloc Liquid ptfe
This liquid ptfe is brilliant. I had a new radiator and new valves and just couldn't get the trv end to seal. Checked online and saw this. Read reviews and they all said how good this was. Bought it, loved it. Recommend to anybody.
User
Gripaloc
Fabulous product so much better and easier to use than ptfe tape highly recommended 👍
User
Doesn’t keep well, but great for purpose
Great stuff but not a lot in the pot and if you’re a DIYer watch out for the pot sealing up in between uses. Be careful trying to open it back up again.Fitted a few radiators with this without any leaks. Pricey, but prevents rework.
User
Saves so much aggro
Sets firm quickly so unnecessary to tighten a joint
User
Plumbing hero product
This is one of the best plumbing products ever invented! Despite being very difficult to remove any fittings you've used this on, it has yet to fail.
User
Thicker and Easy to Use
Best liquid PTFE there is. Prefer it over the Rapid Blue Stuff. Much thicker and easier to apply. Make sure you shake it before use and tap base of bottle on hard surface to clean the nozzle after use.
User
Hardly anything in the bottle???
Really disappointed with this order. I’m sure the product itself is really good but it came in a box with other products in the same order and had leaked over them (don’t know how as the lid was on tight enough) and there’s literally like a quarter of the actual product in the bottle (as a guess, could be even less) I’m returning as this stuff ain’t exactly cheap and you get hardly anything in there? surely that’s not right?
User
A clean finnish
I used it on radiator tail, valve fittings. Spreading onto the threads was easy and leaves a clean finnish.
Trustpilot
3 days ago
2 weeks ago