Repair Service: Rusty Angle Iron

Rusted Angle Iron : Repair Service Greater Montreal

Rusted Angle Iron: Causes, Prevention and Repair

Angle iron is a popular building material used in the construction of various structures. It is commonly used to support brick walls, beams, and other heavy loads. However, angle iron can rust over time, which can weaken its structural integrity and compromise the safety of the building. In this section, we will explore the causes of rusted angle iron, prevention measures, and repair options.

Causes of Rust on Angle Iron

Rust on angle iron is caused by the oxidation of the iron in the presence of moisture and oxygen. The moisture can come from rain, humidity, or condensation, while the oxygen is present in the air. When iron comes in contact with water or moisture, it reacts with the oxygen in the air to form iron oxide, which is commonly known as rust. The rusting process is accelerated in the presence of salt or other corrosive substances.

Prevention of Rust on Angle Iron

Preventing rust on angle iron requires a combination of protective coatings and regular maintenance. Here are some tips to help prevent rust on angle iron :

  1. Apply protective coatings : Applying a protective coating to the angle iron can help prevent rust formation. Options include paint, epoxy, or galvanized coatings. These coatings act as a barrier between the iron and the moisture, preventing oxidation.
  2. Keep the angle iron dry : Moisture is the primary cause of rust formation. Keeping the angle iron dry is essential to prevent rust. Ensure that there are no leaks in the building or water seepage from the surrounding ground.
  3. Regular inspection : Regular inspection of the angle iron can help identify rust formation at an early stage. Inspect the angle iron for signs of rust or corrosion, such as discoloration, flaking, or peeling of the protective coating.
  4. Cleaning and maintenance : Regular cleaning and maintenance can help remove any accumulated dirt or debris that can trap moisture and accelerate rust formation. Clean the angle iron with a wire brush, sandpaper, or abrasive pads to remove any rust or corrosion. Then, apply a new protective coating to prevent further rust formation.

Repairing Rust on Angle Iron

If rust has already formed on the angle iron, it is essential to repair it promptly to prevent further damage. Here are some options for repairing rusted angle iron :

  1. Sandblasting : Sandblasting is a process of using high-pressure air to blast sand or other abrasive materials on the surface of the angle iron to remove the rust and expose a clean surface. Once the rust is removed, apply a new protective coating.
  2. Chemical treatment : Chemical treatment involves using chemicals to dissolve the rust and expose a clean surface. The chemical treatment can be followed by applying a protective coating.
  3. Replacement : In severe cases, where the rust has weakened the structural integrity of the angle iron, it may need to be replaced entirely.


Rusted angle iron can compromise the structural integrity of a building and compromise the safety of its occupants. Prevention measures such as applying protective coatings, regular inspection, and maintenance can help prevent rust formation. If rust has already formed, prompt repair is necessary to prevent further damage. Sandblasting, chemical treatment, or replacement are some options for repairing rusted angle iron. By following these tips, you can ensure the safety and longevity of your building. If you have any concerns or questions about rusted angle iron in your structure, it's best to contact a qualified professional for assistance.