Stone Corundum
An aluminum oxide stone with various granulometries. We suggest the double grain version (180/500), for wide spectrum applications.The colour (orange, brown, blue, white, etc), is due to the oxide content, which confers a high tenacity. Stone for sharpening particular worn out tools, can also be employed by laymen. We suggest the use of this stone before finishing with natural stones.
Application: dry, oil, petroleum or water.
Cleaning: rub stone with sandpaper and water.
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Natural Stone
Quartz is the abrasive material most frequently occurring in nature. However only few natural stones have the correct relation between quartz and carbonates (bonding agents); a perfect equilibrium that makes the natural stones exceptional for sharpening. The natural characteristics of the stones are still emphasised by the use with water, which, reacting with the lime, removes it slightly, leaving the abrasive quartz granulates permanently exposed. All this allows a quick and perfect cleaning of the stone, whereby the abrasive characteristics are permanently maintained.
Quality of the natural stone
High quartz content with homogeneous distribution of the sharp-edged quartz grains of only few tenths of a Micron, giving a high friction ability also after long use. This characteristics allow easy, clean and durable performances.
Application: with water.
Cleaning: leave stone to soak in water and vinegar for 12 hours.
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