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Bardahl Radiator Stop Leak - 300ml

PRODUCT CODE: Bardahl 4001
Bardahl Radiator Stop Leak, stops and prevents leaks in the cooling system with no need to dismantle.
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Availability: In Stock

RRP: £17.89

Our Price Excl. VAT: £2.98 Incl. VAT: £3.58

You Save: £14.31 (80%)

Product Description


BARDAHL RADIATOR STOP LEAK stops and prevents leaks in the cooling system. It protects all ferrous and non ferrous metals (iron, copper, aluminium) against corrosion. It is suitable for all types of engines (diesel, petrol and GPL - 2 and 4 strokes) and all types of radiators (aluminium, plastic). It is miscible with all types of antifreeze and coolant (type C, type D and universal).


BARDAHL RADIATOR STOP LEAK is based on innovative and safe chemical compounds.

  • It stops and prevents cracks in the engine block, cylinder head, joints and all other leaks in the cooling system (radiator, water pump,…).
  • Does not cover but penetrates cracks enabling circulation of the engine coolant.
  • Resistant to high temperatures, pressures, modern car vibrations (high pressure direct injection).

Does not damage joints (including rubber ones) and aluminium cylinder heads.




  1. Turn the heating system on to full.
  2. Shake can thoroughly and add contents to cooling system.
  3. Top up with coolant if required.
  4. Run the engine for 10 minutes allowing the product to harden and seal the leaks, and then turn off the engine.

One can treats cooling systems of up to 22 litres in capacity.



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