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🔧 Seal smarter, not harder — the future of thread locking is here!
M&L XPRO Gripaloc is a 50ml liquid PTFE thread locker and sealant designed for professional plumbing applications. Featuring a non-drip squeeze bottle for precise application, it forms a secure, vibration-resistant seal within 5 minutes. Approved for gas and potable water use (BS751-1 & WRAS), it replaces traditional PTFE tape with a medium strength formula that allows easy disassembly with tools. Ideal for metal-to-metal fittings, it’s the go-to solution for fast, reliable, and mess-free thread sealing.





| ASIN | B0DH89Q77N |
| Best Sellers Rank | 60,236 in DIY & Tools ( See Top 100 in DIY & Tools ) 906 in Sealers |
| Brand | Mika & Lily |
| Colour | Clear |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.4 out of 5 stars 68 Reviews |
| Full Cure Time | 5 Minutes |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 50 Millilitres |
| Item form | Liquid |
| Item package quantity | 1 |
| Manufacturer | Mika & Lily |
| Manufacturer Part Number | MLPTFE01 |
| Model Number | e8897003-a40f-4b35-8deb-510c4bd2b4ce |
| Other Special Features of the Product | WRAS & BS751-1 Approved |
| Package information | Bottle |
| Special feature | WRAS & BS751-1 Approved |
| Unit Count | 50.0 millilitre |
| Viscosity Level | Medium |
| Water Resistance Level | Water Resistant |
I**N
Gripaloc
Fabulous product so much better and easier to use than ptfe tape highly recommended 👍
T**I
Saves so much aggro
Sets firm quickly so unnecessary to tighten a joint
M**X
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.
A**R
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.
J**M
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.
J**N
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?
A**R
A clean finnish
I used it on radiator tail, valve fittings. Spreading onto the threads was easy and leaves a clean finnish.
M**W
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.
Trustpilot
3 weeks ago
1 month ago