What is Holts SEALit?

SEALit is a professional multifunctional leak repair suitable for all cars.

The simple pour and go no clogging formula works through the entire engine and cooling system seeking out leaks to create a professional, permanent repair in a matter of minutes.

SEALit is easy to use – simply pour and fix with no need to drain or flush the system, turning leak repairs into a quick job.

  • Professional and permanent repair
  • No clogging or damaging effect
  • Corrosion protection


What the experts say…

Nick Jackman Mechanic“This product works well to fix coolant leaks, so I would definitely advise people to purchase this. It’s always handy to have this in stock.”

Nick Jackman, Professional Mechanic, Barking and Dagenham College


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