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Biy A Sand Cleaner

2019-5-6 · Sand grit is determined just like sandpaper. 150 is very fine and 50 grit is coarse. Fine sand will give good detail, coarse sand will give a pebbly or rough texture. I If you look at the sand through a microscope there are gaps and spaces like a sponge. Any moisture that turns to gas during pouring can escape out the pores (gaps).

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