abrasive cloth, dry sandpaper, water sandpaper, sanding belt
The difference between dry sandpaper and water sandpaper
Water grinds sandpaper the gap between its sand grains is smaller, grinds out the fragments is smaller, and water together with the use of the fragments will follow the flow out, so it is best to use with water. If you take water sandpaper dry grinding, the dust will stay in the sand gap, sandpaper surface light can not reach its original effect. And dry sandpaper is very convenient, its sand between the larger gap grinding out of the debris is also larger, it is in the process of grinding due to the gap large debris will fall down, so do not need to use with water. Dry sand has dividend sand and white sand, the difference is that water sandpaper did not do anti - blocking coating treatment. Water sandpaper grinding slower, but grinding more light (the finer water sandpaper grinding slower also light, often used to do high light products oil grinding); Dry sandpaper grinds faster, but grinds out coarser (the coarser the dry sandpaper grinds out faster and coarser, conventional grain size below 400 is often used for wood mill, 400-800 grain size is often used for oil mill)
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