Cooling System Maintenance & Repair

Radweld is a radiator cooling system leak repair – and the advanced formula will target leaks in your radiator, sealing them permanently.

Radweld is suitable for all cars and mixes with all coolant/antifreeze. Radweld also prevents future leaks, to help keep your car on the road for longer. Holts develop products for you right here in the UK, based on the ever changing needs of the car market, so they’re easy to use and can help you to avoid costly repairs.

Holts RK1R Speedflush Cooling System Cleaner is a product that is used to clean the cooling system of a car. It can be used to remove rust, scale, sludge, and other deposits that can build up in the cooling system over time. This can help to improve the efficiency of the cooling system and prevent overheating.

The product comes in a 250ml bottle and is easy to use. Simply add the product to the cooling system and run the engine for a few minutes. The product will then circulate through the system and remove any deposits. Once the engine has cooled down, you can drain the old coolant and replace it with new coolant.

Holts Wondarweld is a professional cooling system repair product that’s designed to fix small cracks and holes in the cylinder head, engine block and head gasket.

Repairs cracks in engine blocks, cylinder head gaskets and water pump gaskets
Heavy-duty crack repair
Suitable for steel, aluminium, and iron engines