Although car polishing may seem simple, it actually requires a lot of experience and skill. The right choice of sandpaper and sanding procedures can ensure the smoothness and beauty of the body surface, laying a good foundation for subsequent painting and maintenance work.
how to choose the appropriate number of sandpaper mesh?
Choosing the right type of sandpaper is the key to car sanding. The choice of sandpaper type is usually based on the condition of the car paint surface. Rough surfaces may require a coarser sandpaper (e.g. 80-120) for initial sanding, while smooth surfaces can be fine sanded with a finer sandpaper (e.g. 200-400).
what is the grinding steps?
1. First, use a file to slightly smooth the edges of the putty. This step can reduce the abrasion of the sandpaper in the subsequent sanding process.
2. Then, touch the surface of the putty with your finger to look for bumps or depressions. Sand the areas until they are smooth. If the depression is found, it needs to be filled with putty again.
3. After the bumps and depressions of the entire surface have been polished and smoothed, the floating ash and rough texture of the entire surface also need to be removed. In this case, you need to use more detailed sandpaper, such as 400 or 600 mesh.
what should be note when polish the car ?
1. Do not exert too much force during the grinding process, so as not to damage the surface of the car putty.
2. After grinding, use a brush to remove the dust on the surface.
3. If there is too much wear, it is necessary to re-apply the car putty and re-polish.
In short, choosing the right number of sandpaper mesh and the correct grinding method are essential steps for grinding car putty. With these tips, you can easily achieve a more even, glossy finish.
