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Thread: Extremely Stupid sharp...
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04-08-2008, 08:34 PM #1
3M abrasive film have the abrasive embedded into the film (resin) as well, making for a longer lived product than traditional sandpapers. However, the .5 micron Chromium Oxide 3M film has a surface so smooth it's similar in nature to the emulsion side of old photographic film. On chromium oxide "pasted" balsa or leather, a razor glides very smoothly across those surfaces. I've found this not to be the case with the 3M chromium film.
I found the coarser grits of 3M film to be just fine for honing and seemed to cut aggressively. Water or oil is advocated for use in conjunction with the films for improving the life of the film but to me has the disadvantage of storage issues.
All of this is fun to experiment with for certain.
Chris L"Blues fallin' down like hail." Robert Johnson
"Aw, Pretty Boy, can't you show me nuthin but surrender?" Patti Smith