Will rust form from the inside after sheet metal repair and painting?

[DeLyla]

If done properly, rust will not form. Here is some information about sheet metal repair and painting: 1. Introduction: Sheet metal repair and painting, commonly known as "body repair and painting," is performed when a vehicle is involved in a collision, resulting in scratches or even deformation of the body. Sheet metal repair involves reshaping and restoring the deformed parts of the vehicle. Painting is the process of restoring the color and gloss of the vehicle after it has been returned to its pre-collision condition. 2. Time consumption: The sheet metal repair and painting process involves complex steps and is time-consuming. If the damaged area of the vehicle is large, the time required will be further extended.

[JoannaAnn]

I've encountered many cases of automotive sheet metal repair. If the internal rust isn't thoroughly cleaned before painting, it can indeed continue to rust from within. During repairs, workers must first completely remove all rust from damaged areas using sandpaper or tools, leaving no dead corners, then apply anti-rust primer or zinc-based coating to cover all metal surfaces. The paint layer is only external protection - if there's residual rust underneath or rough treatment, moisture infiltration will allow oxidation to gradually spread the rust. This typically becomes visible within months to a year after repair, especially accelerating in rainy or coastal areas. Experienced technicians emphasize the importance of internal rust removal, so it's recommended to go to professional repair shops to ensure proper procedures and avoid subsequent unnecessary troubles and additional costs.

[CassandraDella]

As a car owner who has experienced post-collision repairs, I can share my personal experience: right after the bodywork and paint job, the exterior looked shiny, but six months later, rust bubbles appeared at the edges of the door. I later learned that the small repair shop took shortcuts by not thoroughly removing internal rust before applying filler and paint, allowing moisture to seep in and cause rust. Proper repair requires removing all rust spots and applying a specialized anti-rust primer to seal out air and moisture. The paint layer is just for aesthetics, not the core of rust prevention. That lesson taught me that saving money by going to small workshops ends up costing more. Now, I always choose reputable shops for maintenance and regularly inspect repaired areas to prevent recurring issues.

[LeElliott]

Preventing rust inside after sheet metal repair is simple, but it all depends on careful initial treatment. Ensure workers thoroughly remove rust before applying anti-rust coatings like epoxy resin to isolate the metal from oxidation. While paint covers the exterior, rust can emerge from gaps if the interior isn't properly sealed. It's advisable to choose a professional auto repair shop and keep the car body dry and clean post-repair, such as avoiding water accumulation in corners. Regularly inspect the repaired areas by touch to detect bubbles or discoloration early. This saves the hassle of rework and ensures safety.