Repair holes caused by rust

How to repair rust holes: Holes in metal and iron can be a big problem. Here's how to do it yourself.

If you have an old balcony to renovate and you are struggling with railings or an old iron gate, you will need putty for the metal. In this page we will see how to use it to repair the rust holes, even those left in the car body.

To repair theholes caused by rustyou need to buy a putty for the iron. On the market there are putties for iron with different characteristics; according to the type of repair, choose a ready-to-use iron putty or a putty to repair holes in the bodywork.

Putty for metal or welding

When metal components are damaged they are affected byrust, the use of aconverteror metal brushes! The iron oxidation process, if neglected and not blocked, creates cavities and holes in the metal.

A metal object (railing, gate, window profile, bodywork…) can be brought to new life by using putty. If the oxidation of the iron has created a real hole, it will be necessary to consider the use of a sort of "patch", while if the hole has not completely perforated the iron, the use of theputty for metal.

Metal putty will be used to repair steel, metal, aluminum, brass or zinc. If the metal to be repaired is aluminum, brass or zinc, it will be necessary to perform a treatment with a non-phenolic primer to allow the filler to set.

Metal putty is widely used to repair car bodywork or old window frames with metal profiles. If the surface is excessively rusted, it may be appropriaterepair the rust holethrough awelding with new metal. In the case of limited surfaces, you can act with the putty ready for use.

For rust holes that pierce a metal box from one side to the other, you can evaluate the use of metal sheets to be welded or fixed with special adhesive resins.

How to repair rust holes

The putty that we find on the market is sold with aactivatorcalled "hardener". At the time of use, remove from the package only the amount of grout you intend to use in the most immediate future (within 10 minutes).

Start with the repair of a well-defined area. From the package, take only the part you intend to use and mix it with the dose of catalyst suggested on the label.

Any tool that comes into contact with the catalyst (activator or hardener) must not come into contact with the putty you are not using, otherwise it will become hard and unusable. If you accidentally get a tool dirty with catalyst to remove the grout from its package, immediately remove the layer that came into contact with the activator.

To spread the grout, use a spatula or a special knife. Once hardened, the putty can besandpaperand painted with the rest of the metal.

Once opened, the metal filler can be stored for a few months. The more scrupulous, if they can seal it hermetically, they can keep it for about a year.

Tip for DIY newbies
If you do not have good dexterity and are not experts in renovations and do-it-yourself, forrepair holes caused by rust, buy a ready-to-use putty for metal. The ready-to-use putty must not be activated. It should be applied directly on the hole or recess to be leveled. It was created for simple and modest interventions. According to experts, the best products are those with a catalyst as they give a longer lasting yield, however the ready-to-use putty for metal is much easier to manage.

If you are dealing with rust, there are other guides that could be very useful to you:

  • - Remedies against rust
  • - Rust converter, how it works

Video: How To Fix Large Rust Holes Using Bondo (January 2022).