Corium 4040 Heavy-Duty Metal Repair Compound

Corium 4040 Heavy-Duty Metal Repair Compound is the "impossible" metal repair and build-up compound that quickly and easily provides strong and long-lasting repairs to metal – even aluminum.

  • Corium 4040 is super easy to use – it quickly repairs leaks, cracks, fractures and grooves in metal.
  • Corium 4040 is super tough on the job – it gives permanent and fully machinable repairs.
  • Corium 4040 provides super versatility – it can be used for joining, patching and building up metal surfaces.

Corium 4040 is the superior heavy-duty metal repair and build up compound that :

  • Is quality formulated to provide near-metallic properties.
  • Gives unusually high-strength and long-lasting repairs to damaged and worn metal surfaces.
  • Is easily moldable to the shape required to make difficult metal repair a breeze.
  • Provides a close color match to iron and steel.


Corium 4040 has been adapted through advanced metallic additives. Corium 4040 is a two-part formulation that provides a fully machinable compound especially adapted for filling crack, building up metals and all heavy-duty and repair situations requiring rebuilding and machining operations.

Use Corium 4040 on:

  • Building up worn or low spots in wooden or metal patterns or models
  • Repairing stripped threads
  • Repairing cracked or broken cast iron
  • Repairing aluminum
  • Sealing oil leaks
  • Sealing leaks in gasoline tanks
  • Filling holes in auto bodies