HOLTS WONDARWELD | ENGINE BLOCK SEALANT, 250ML

Holts Wondarweld is a professional repair product designed to repair small cracks and holes in the cylinder head, engine block and head gasket. With its heavy-duty formula, the product provides a permanent repair without causing damage or clogging the system, so you can fix small problems without having to make an expensive repair.



Features:

- Heavy duty crack repair

- Repairs cracks in engine blocks, cylinder head gaskets and water pump gaskets

- No clogging or harmful effect

- Suitable for steel, aluminum and iron engines

- 250 ml is sufficient for cooling systems up to 8 liters



How do I use Wondarweld?

Before using Wondarweld, drain the cooling system and flush it with Cooling System Flush to remove all residue and contaminants left by the old coolant. After draining, reconnect the lower hose.



To use Wondarweld, remove the upper hose from the exhaust of the cylinder head before removing the thermostat. Do this and then use a funnel to apply the product directly into the cylinder head exhaust, being careful not to pour it into the oil, as this can cause serious engine damage.



After applying the product, replace the thermostat and the top hose. Refill the system with clean water and run the engine for 15 minutes to fix the leak.



When the repair is complete and no more fluid is leaking, drain the system again, flush with clean water and then refill with a high quality coolant/antifreeze (add link here for Prestone coolant).