Thread: flattening honing stones.

Originally Posted by aaron1234

My reason is because I have a stone that is over 11in. they don't make sheets of high grit sandpaper large enough to lap this particular Stone properly.

Sent from my SAMSUNG-SM-G935A using Tapatalk

We do have them in the Netherlands. I have flattened long Lynn Idwals and Charnley Forest hones with sandpaper. And they are buggers to lap.

Yup many ways to do it, for soft stones like slates and coticules, drywall screen is quick and easy.

For hard stones, 60 grit will get you flat in a few minutes. There are many threads, on flattening stones mostly in the Ark stone post.

For Arks and other hard naturals, it is not uncommon to go to 2k or higher on Wet & Dry then burnish with hard carbon steel, for an even finer smoother stone face. If you need longer, just glue 2 sheets to a cookie sheet. Works just fine.

Nice post, thanks for posting.

Aaron, get it flat first with 60 grit, Zulus are hard, then work up the progression to 500. From there your slurry stone should take it the rest of the way.

Most Zulu’s I have seen were pretty flat. Dead flat is a myth, smooth and flattish is good enough. And if you use glass as a substrate, after the first lap, the glass is no longer flat.

Glass is not flat to begin with, I use glass for film, and I have to flatten it first.

Originally Posted by Euclid440

Aaron, get it flat first with 60 grit, Zulus are hard, then work up the progression to 500. From there your slurry stone should take it the rest of the way.

Most Zulu’s I have seen were pretty flat. Dead flat is a myth, smooth and flattish is good enough. And if you use glass as a substrate, after the first lap, the glass is no longer flat.

Glass is not flat to begin with, I use glass for film, and I have to flatten it first.

Euclid; I am a little confused with your wording. You mention this;

Most Zulu’s I have seen were pretty flat. Dead flat is a myth, smooth and flattish is good enough.

then state this;

Glass is not flat to begin with, I use glass for film, and I have to flatten it first.

StewieS.