Yes, you can use Holts Radweld before an MOT. A leaking radiator can be expensive to repair, and could cause your car to fail its MOT, so solving the problem at home first can be an ideal solution. Before using Wondarweld, drain the cooling system and flush with Cooling System Flush to remove any residue and contaminants left behind by the old coolant. After draining, reattach the bottom hose.

Holts Wondarweld 500ml | Halfords UK Holts Wondarweld 500ml | Halfords UK

followed instructions to the letter, flushed system and filled with new coolant, had a small leak at the thermostat housing, the product worked for a couple of days, but now leaking again. Might work for others, but didn't work for me.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. Absolutely, and our products are not just for cars. Any vehicle with a cooling system can be susceptible to leaks. So, whether it’s a small car, large car, an SUV, 4×4, motorbike, van, or even static agricultural equipment, if it has a wet cooling system with a leak – pour in some Holts Radweld to get things running again. How does Radweld seal holes without causing clogging or damage? It’s permanent for as long as it’s in the system. It’ll also prevent any further corrosion in the system and prevent any further leaks from occurring. You can even use it as a preventative measure if you’re so inclined. Can Radweld be used in any car?

Holts SEALit Coolant Leak Repair - 250ml | Mole Online

Holts, has launched SEALit, a new one-step leak repair product for vehicle coolant systems. This professional use product is suitable for all cars and has a unique, super-concentrated formula that acts fast, is easy to use and provides a guaranteed permanent repair for most leaks within minutes. Radweld provides a permanent repair for small faults in the cooling system, including the hoses and radiator. It seals without damage or clogging and can be used in all cars and with any type of coolant/antifreeze. SEALit е съвместим с всички видове охладителни течности, като се спазват съответните им характеристики.Radweld works its way through the system seeking out leaks and forming permanent repairs in minutes. The product has been carefully formulated to mix with all engine coolant and antifreeze. You pour it directly into the cooling system, no need to drain or flush the system first. Radweld also provides anti-corrosion protection and prevents future leaks; it will last the lifetime of the coolant in the system. How to Use Radweld