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personal/sharpening/Stropping.md
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@ -9,13 +9,15 @@ Stropping on a clean substrate achieves 4 things:
4. Removes coating - Some blades come with a manufacturer applied oil, you can use a strop to remove this coating
# Loaded Stropping
With a loaded strop, abrasive compound is applied to the strop to increase the rate of abrasion. This compound is applied with the goal of reducing the width of the edge without the formation of a foil-edge burr. Loaded stropping tends to produce a micro-convex edge, meaning it's shaped a little bit like a teardrop, where it curves outwards from a straight angle the farther away from the vertex the edge goes. This effect is generally desireable.
With a loaded strop, abrasive compound is applied to the strop to increase the rate of abrasion. This compound is applied with the goal of reducing the width of the edge without the formation of a foil-edge burr. Loaded stropping tends to produce a micro-convex edge, meaning it's shaped a little bit like a teardrop, where it curves outwards from a straight angle the farther away from the vertex the edge goes. This effect is generally desirable.
The effect of stropping happens quickly, within 3-30 laps, and 10 laps being the minimum needed to achieve the desired effect. Stropping past 30 achieves minimal change, and stopping past the hundreds may introduce a burr again.
## Strop Material
There are a variety of stropping materials available for use, common materials include leather, denim, newspaper, washcloth, and balsa wood.
### Balsa
Because balsa wood is rigid and nearly incompressible, stropping on balsa produces minimal convexivity
Because balsa wood is rigid and nearly incompressible, stropping on balsa produces minimal convexity. Micro convexity is still achieved.
### Nanocloth
Nanocloth is a soft, flexible material mounted on a hard, flat glass substrate. It's a synthetic polishing cloth sold by Ken Schwartz.
## Compound material
### Chromium Oxide