For removing devit, any size
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December 28, 2013 at 7:18 pm #11776
For removing devit, any size does the job.
For blasting designs with finer detail you’ll want finer grit.
If you are sanblasting and then slumping for a matte finish, finer grit will give you a softer, smoother result.
Unless you need to go fine, the coarser stuff is a better value as it lasts longer before breaking down to dust-sized particles.
I generally use 120 as general purpose size – fine enough for most carving, nice finish on matte, and lasts a resonably long time.
Helios Kiln Glass Studio