HOLTS Wondarweld-additive for cracks in the block, etc. 500ml. You can trust Wondarweld to safely leak leaks without damaging or clogging the system, ensuring professional results.
Read the instructions carefully on the back of the pack and do not pour into oil.
Heavy duty crack repair.
Repair cracks in engine blocks, cylinder head seals and water pump seals
No clogging or harmful effects.
Suitable for steel, aluminum and iron motors. High quality for professional and home garage use! Origin Holt, UK.