|Forum topic by chelsead||posted 03-25-2011 07:35 PM||8842 views||0 times favorited||4 replies|
03-25-2011 07:35 PM
A friend of mine just ordered a 20” oscillating lap (seen here: http://www.lortone.com/laps.html). She will be sanding down a block of marble layer by layer and scanning each layer. To do this, she was advised by a friend who had gone to masonry school to buy a sheet of sandpaper that would cover the entire area.
I’ve had a hard time finding sheets of sandpaper that are that large. I did find a few 20” sanding discs, but the grit seems to only go from 60 to 220. She was told she will need 400, 600, 800, 1000, and 1500 as well. Does that seem like too much? If not, does anyone know where you can get the 20” sanding discs in the higher grits?
If those aren’t possible, what do you think of buying sheets and using enough to cover the 20” diameter space? Would the seams where each piece meets be problematic?
Thanks in advance!