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Week 3-Needed Knowledge3/6/2024 So, last week, I talked about what all I had to go through to work out the sanding situation, this week I will still talk about what I experienced, but more so, in what ways I needed to understand and use the tools I was working with.
The main thing that I have to understand, at this point, is in what order I need to do things. I also have to understand what the different grits of sandpaper do/are used for and how to properly take care of my sander. I know that there will be more that I need to know, just not at this very moment. The sandpaper is not very hard to understand, the higher the grit, the finer the grit is, the lower the grit, the more coarse the sandpaper is. When the grit is coarse (below 120 grit), it will take off material very fast. This is helpful when you first start sanding to get down to whatever layer of the paint you want to be at (clearcoat being at the top, repaints/primer underneath, and primer on the very bottom right before bare metal). When the grit is fine (120-220 grit), it will make a much smoother surface than coarse sandpaper, but still not as smooth as extra fine grit (240+ grit). Fine grit sandpaper should be used after the coarse sandpaper to take out the bigger marks that are still left. After that is when you want to use the extra-fine grit sandpaper to get all of the small imperfections that are still left out. Imperfections meaning small scratches, sanding obviously won't fix areas that are uneven. The only other thing that I needed to know about sanding is what pattern to go in (circular), and maintenance of the sander. All that this consisted of is oiling after every use so that it didn't rust and cleaning out the holes of air flow with an air gun occasionally.
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