Damage to the surface layer of the paint and the impact of the external environment negatively affect the condition of the car body. Metal corrosion holes cause a lot of trouble for the owner of the car. They can be repaired without welding. How to do it?
Instructions
Step 1
Scrape the metal around the hole and treat the surface with a rust remover. Take fiberglass, cut three patches out of it, and the first should be 2-3 centimeters larger than the size of the hole, and each subsequent patch should be 5-6 centimeters larger than the previous one.
Step 2
Saturate the fiberglass on all sides with epoxy glue and attach to the back of the body. Glue these patches, starting with the smallest one. Wait for each layer to dry completely. After that, clean, prime, putty, paint the body from the outside. But the result of this method is short-lived and is suitable for small holes.
Step 3
Seal the hole in a different way. Treat the area of the body surface to be repaired as in the first case. Cut a piece out of the metal that should be 25-30mm larger than the hole. Apply a thin layer of tin to the patch and body to protect the metal from rust (tinning). Use a powerful soldering iron to attach a piece of metal to the back of the body. Then rinse the surface thoroughly.
Step 4
Remove the bulge in the metal resulting from heating it. To do this, drown it with light blows of a wooden mallet. Fill the resulting dent with a thin layer of putty. Sand the surface with coarse sandpaper. Degrease the work surface with white spirit, apply several types of primer (to avoid corrosion) and in several layers. Let dry completely for 3-4 hours. Then calmly grind and paint.
Step 5
Keep in mind that all of the suggested methods are good for patching up small corrosive holes found in car fenders, doors, hoods, and sills. If rust has formed on the chassis of the car, then welding is still indispensable. It's about the safety of your life.
