at my shop we've been useing 3M brand sand paper from 220 grit up to 2000 grit. the colors of the sand papers are either a dark blue, black or grey. the finer grit papers tend to be grey while the corser tend to be black or dark blue. anywho, it seems to me that the 600 (grey) is much finer than the 800 (black). when i'm sanding with the 600 i notice almost no dust at all, but when i use the 800 right afterwords i notice considerably more dust as well as an audible differance, it acutaly sounds coarser like it's cutting more. has anyone else found this to be the case? i'm pretty sure that both papers are from the same line and use the same type of abrasive grains. if anyone has some insight into this i'd be interested to hear.
3M Sandpaper
- Thread starter CrsSim
- Start date
CrsSim said:
There is a whole technology to sandpaper. Some have smooth grit for polishing. Others have sharp grit for cutting, dri-lube and so on. The grit number is not the only determining factor. Having said that, I have some from the same manufacture and the 1500 seems finer then the 2000, go figure.
I switched to norton a while back. The 3m is good stuff, but Some cuts alittle too much for My liking also. Right now, I only use the norton up to 600. After that I start going into a reusable polishing paper that is another brand, and very expensive. I like to go higher Myself, but On shaft cleaning some people only go to 600, and then go into burnishing, It works fine as well when done right, so really just depends on what works for you, and what you are using It for. finishing clear I go all the way to 10,000 grit.
Greg
Greg
