Posted 1 day ago

Holts Radweld 250ml, Seals leaks in minutes - £3.54 with free collection @ ToolStation

Shared by sajidtg
Joined in 2010

About this deal

The advanced formula targets radiator leaks, sealing them safely. Suitable for all cars and mixes with all coolant/antifreeze.

Radweld works its way through the system to target radiator leaks, without damaging or clogging the system. An easy to use radiator cooling system leak repair.

• Suitable for leaks in radiators and hoses
• Seals in minutes with no clogging or damaging effect
• Prevents future leaks
• Simply pour into coolant/antifreeze
• Treats up to 14L

No need to drain or flush the cooling system before use. Simply pour and fix. Pour whole bottle into cooling system, do not pour into engine.
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  1. Avatar
    I remember years ago I had to use an egg white in an emergency. It worked, and never leaked again.
    Proper dad mechanic tips right there
  2. Avatar
    Trade card at Halfords £3.41.

    I used this for a porous cylinder head and got another 50,000 miles. Car got written off by it's new owner
  3. Avatar
    Best to fix the leak properly before they goop circulates all over the never regions of your cooling system.

    Heat for the price have used it once on a scrapper .. worked well. (edited)
  4. Avatar
    Not ideal for modern cars, too many voids and sensors can be blocked by it. Fix it properly IMHO.
  5. Avatar
    Back yard car dealers staple product...