I wanted to experiment with very high grit abrasives for sharpening, but needed an economical approach: I used contact cement to secure 150 and 400 sand paper to some pieces of marble and glass.
Results were mixed, more experimentation is needed. This is apparently an approach used by carpenters to achieve scary sharp plane blades.
While I think of it, here some new, quite economical options I have come across. Both types are abrasives for steel, on a mylar sheet with an adhesive backing.
3M Micro-Abrasives for Sharpening:
http://www.leevalley.com/en/wood/page.aspx?p=33004&cat=1,43072
Diamond Lapping Film:
http://www.leevalley.com/en/wood/page.aspx?p=68943&cat=1,43072
I recently purchased some of the diamond lapping sheets, but haven't given them a try yet.
BTW: No affiliation to Lee Valley, except that they keep sending me these darned catalogues loaded with neat stuff I previously didn't even know I needed.
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