La-Co LAC-42018 Pipe Thread Compound 240ml Product Code: 53863

For threaded pipes carrying hot or cold water, gases, steam, air, petrol, oils and refrigerants. Solvent and water-free, contains teflon and PTFE. Brushes on oily, wet or cold threads. Disassembles easily. Will not dry out or harden.
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Safety Data Sheet
Additional Information
Technical Specification
  • Brand : La-Co
  • Product Type : Pipe Thread Compound
  • Volume : 240 ml
  • Total Product Weight : 399 kg
  • Model No : LAC-42018
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


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€14.45 Incl. 23% VAT

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La-Co LAC-42018 Pipe Thread Compound 240ml is rated 4.1 out of 5 by 19.
Rated 5 out of 5 by from Best jointing paste Used this paste for years stop's those little dripping joints from happening fantastic on gas never use PTFE tape just the paste.
Date published: 2019-05-07
Rated 1 out of 5 by from I didn’t use it Be aware that the small print on the tub says only suitable for tapered threads and not parallel threads which most radiator tails are these days. Didn’t see this information anywhere on Screwfix or manufacturer website. When I saw this I took it back and got Fernox LS-X which worked fine on the towel rad I had been struggling to seal. Waste of petrol.
Date published: 2019-04-17
Rated 5 out of 5 by from Stopped the persistent leak Had a leak from the U-bend under my sink which was reluctant to stop. An application of this thick compound and, presto, no more leak!
Date published: 2019-02-08
Rated 5 out of 5 by from Excellent stuff I have used this on both mains water "tap tails and compression fittings" and central heating "radiators and fittings" this stuff seals very well and had no leaks and has replaced using and PTFE ever.. one thing to note is for this to effectively seal you need to use the brush that comes with the pot spread in from the bottom of the fitting to the end "fill the thread gaps untill they are even with the thread top" other than that lovely stuff
Date published: 2018-06-15
Rated 5 out of 5 by from Works on pool pump fiting Worked perfectly to refit the outlet pipe to a swimming pool pump. These are renowned for their difficulty in getting water tight. Some PTFE tape at the top and this at the bottom made the fitting easy to attach. Hand tight only with no seepage.
Date published: 2018-05-21
Rated 1 out of 5 by from Didn't work for me. Used this product to seal the thread on 1 1/4 Bsp pipe fittings. Of the five I used it on two of them leaked afterwards. Replaced it with ptfe tape with no further leaks. Wish I'd saved my money.
Date published: 2018-05-10
Rated 4 out of 5 by from Thread compound We have struggled to seal joints from our petrol tank in our Motor Glider. LA-CO sealed it first go, very very pleased
Date published: 2018-03-13
Rated 5 out of 5 by from Job saver This stuff is brilliant. Has made my plumbing water tight every time I’ve used it.
Date published: 2018-03-01
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