- juliefs0
- Nov 6, 2022
- 2 min read

We have a steel door frame in our garage that developed a nasty rust problem. Hubby, wanting to stop the rust, purchased a small bottle of rust inhibitor from the local hardware store and painted over all the areas where the rust had come through.
I, like hubby thought that was the best thing to do and was quite proud when we had the painter in to paint the frame. I showed him the bottle and what hubby had done.
Imagine my surprise when I was told that the product would have done nothing for the rust. The reason; the inhibitor would work well on rust if it had developed from the outside of the metal frame but does not work when rust comes from behind the frame. The rust works its way out from inside.
Unfortunately because our block of apartments are built on a slope the garages are cut into the garden therefore the door jamb is against a brick supporting wall set into the edge of a deep garden. This means the dampness held by the soil soaks into the bricks and of course is the cause of the metal door frame going rusty. Accordingly all the units have been affected the same way.
If the wall had been waterproofed when the building was originally built, there would never have been a problem, but you know builders of large complexes, to them it wouldn’t have been cost effective, so no waterproofing was ever placed between the brickwork and the soil. Over time the dampness has crept through and caused the rust.
To solve the problem we will have to remove about two meters of soil to gain access to the wall so it can be waterproofed. Not only difficult. but there is a fully grown tree in that section which would make it some what expensive.
The area has been covered with a fresh coat of paint, but it won’t be long before the rust will come through again, and could after a period of time cause the door frame to disintegrate completely. No, the metal door frame will have to be replaced. And somehow we will have to stop the dampness coming through the brickwork.
So the moral of the story is: don’t always believe when you see rust that the problem can be solved by painting an inhibitor over the affected area. Wouldn’t it be lovely if people did a job properly in the first place?