As a kind of construction material, there are many kind of stone finish, like antique stone, split type stone, mushroom stone, flame granite slab, hone slab, sandblast slab… these kind of finish is mainly to show the roughness of the stone surface, usually we call them rough surface stone. We divide it as non-polish stone.
Except above-mentioned stone, it also include the roman column, abnormal shape of stone , relieve, these kind of stone’s purpose are:
to show the nature beauty on decoration effect
anti-slip
ancientness imitation
Rough slab usually used for square, road pavement, the quantity for municipal construction is huge, in the municipal construction, polish stone is only for decoration and sign, anti-slip stone is the most important, mushroom stone give a three-dimension feeling, so usually to be the decoration for outside wall, and the flame stone usually be used to pave floor, also for the decoration of the wall.
Due to different place, different purpose, now there are many kind of grind brushes to be used to do different non-polish surface, the grain # for grain brush range from 36# to 500#, and the common used ones are 36#, 46#, 60#, 80#, the grain size of 46# is 425-355μm (internation standard ISO, china standard GB2477—83)，80＃is 212-180μm。Usually grain size ＜63μm, it is micro powder grain, equal to international standard 240#, china micrograin # is W63.
In our country, usually W28-W14 micro powder is used for fine grinding and rough polish, W10 used for fine polish and fine polish, W10’s grain size is 10-7μm。500# is just equal to china’s W40, basic grain size is 40—28μm。So the grind brush is just equal to rough polish, and such polish could give people natural feeling after grinding, and if not grinding, the slab surface will easily keep dust, and grinding could bring the stone a kind of beautiful silk luster on the surface. Also could clean the stone powder and stone scraps.
Polish is the final processing procedure for stone fine finish
According to different polish technique, the stone polish could divided into two kind, ie, polish for polish surface stone, and polish for non-polish surface stone.
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