The term metal finish means different things to different people. The metal Finishing process includes the use of certain tools to remove small dents and waves from the surface of the sheet metal on your car. It's a precise process by which you use slap files, medium grit sandpapers, and torches if you need to remove small dents and waves.
Some people would spend that extra time removing these small imperfections and not use any filler to do it. But this doesn't mean that this is a better way to remove dents. If body filler is used the right way, it does a great job.
Metal finishing to remove small dents takes a lot of time, and in the end, it has some very specific drawbacks that you need to know about. So you can weigh out possibilities before you go to this extreme. First of all, if time is a concern, you'd better use filler to do the job.
With all the advances that they've made in plastic fillers, they really are hard to beat these days. The idea behind no filler dent and wave removal is obvious. First, you locate the area that needs work by hand, feeling for high and low spots in the metal. Once you locate the affected areas, you need to determine if it's a high spot or a low spot in the metal. Using a sharpie to circle the affected area and label it, you know what it is when you start the metal finish work.
You'll need to start out working the high spot with your slap file, with a lightweight dolly behind the high spot, the idea behind the slap file is to lightly slap the high spot as you move the file forward at the same time, so you'd lightly slap the dent with a forward motion.
As you slap the dent, the file will leave marks in the metal, and you'll need to remove these marks before you apply the primer to the car. This is where the sandpaper and sanding block comes into the picture - 80 grit paper to start with and 180 to finish with.
It's also a great way to remove the high spot that a welder leaves after you finish grinding the weld off, but this usually still requires a little bit of metal glaze to finish it with, so it's not filler-free, but it will remove most of the high spot. After you have done the metal finish work, you can now spray it with primer or feather fill, then primer. It's always recommended to use powder coating for an awesome finish.
Rustylions Powder coating specializes in powder coating & Metal Finishing NJ for multiple types of businesses, from industrial manufacturing to metal fabrication to auto parts. Rustylions serve machine shops in finishing services. For your powder coating requirements - Contact Rustylions Powder coating at 1~347~613~8103/ 973~459-8515.