You will have to use a bonding.
Metal door repair rust.
Repairing the damage is a requirement prior to painting.
How to remove rust from concrete.
It helps if you know how to remove rust from metal surfaces using a combination of methods that provide positive results with just a little time and effort.
Metal doors often rust when water infiltrates the small cracks in the paint and contacts the metal.
How to restore a rusted metal door.
However badly rusted metal areas need more prep work and possibly a special primer.
Door frames secure a door and hold it in place.
The procedure to fill holes in a metal door is similar to repairing wood doors.
The combination of outdoor moisture oxygen and carbon dioxide can damage an exterior metal door resulting in unsightly rusty patches.
However steel door frames are susceptible to damage including dents and rust.
Once done you can paint over rust.
Sometimes the rust eats.
This causes a blemish on the door and may lead to corrosion which weakens the door structure.
Repairing this issue requires a refinishing of the door.
I had a major rust problem in my 1989 mitsubishi montero ls v 6 four door and thought giving glue a chance would at worst demonstrate what not to do and at best bond some new steel in place of rust with a minimum of body filler.
The best way to remove rust from a metal door is to grind to scrape the rust off of the surface and repaint the metal door to protect from future rust.
The difference is the type of filler that you use.
My target here was non.
However rust is a problem for metal surfaces.
How to repair rusted metal without welding.
Metal doors hold up extremely well to impact making them highly durable.
Applying paint over rust will cause the paint to bubble and peel.
Regardless it is still relatively weak to explosives compared to its expensive indirect upgrade the armoured door.
The sheet metal door is the most common door found on bases due to its resistances to melee weapons and fire but relatively cheap cost to craft.
It ruins the appearance of the door and diminishes its durability.
Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer.
So if you are handy and good at painting this project will be fairly straightforward.
Steel door frames are strong and durable alternatives to wooden door frames.