I'm looking for the best strategy when it comes to using float glass with different sandpaper grits. Should I invest in multiple pieces of glass for each grit, or is it better to use pre-glued sandpaper, even though removing it after use can be tricky? I'm also seeking advice on how to flatten bench planes and other tools. What's a good grit progression for this process?
5 Answers
Check out Tay Tools; they have pre-packaged kits specifically for this. It's a great way to get started without worrying about selecting everything piece by piece.
I went with a single large piece of float glass, and here's my grit progression: use 120 for the initial edge, then 300-400 for that first rough pass, and finish off with 800-1000 grit for honing. A strop with chromium oxide compounds helps get that razor-edge on all my tools.
For flattening plane soles, I’ve had success using sandpaper rolls stuck to my jointer with spray adhesive. It works really well, especially if you have a larger jointer for extra support.
To make changing the worn sandpaper easier, use blue tape between the glass and the sticky sandpaper. I usually stick to 80 grit and 120 grit for my needs.
When it comes to grit progression, just go high enough so it won’t damage your wood—no need for a super shiny mirror finish! For the sandpaper, a lot of people like using rolls with spray adhesive; when it gets too worn, you can scrape it off easily with a razor and clean it up with some Windex.
And don’t forget—those super sharp edges don’t last long! One use and they can lose that perfect edge in a heartbeat.
I’ve done that before! A bit of mineral spirits and a carbide scraper really does the trick for removing it quickly.