Let's compare grits

[sapwood]

Okay, I know there are different standards for grading abrasives--and different types of abrasives. Sooo, does anyone know of a comparison chart? 8-O

'frinstance
diamond stones are fine, coarse, etc., going from about 250 to 1000.
waterstones are generally "finer" going from about 1000 to 6000.
wet/dry sandpaper appears to start at 400 grit and goes to about 6000.

But the ratings are sorta "apples and oranges", right????

Is a 1000 grit waterstone more or less fine than a 1000 wet/dry sandpaper?

Expectantly,
Sapwood

 

[Mountaincraft]

The grit measurement for Japan water stones is different from say, Arkansas stones. I think that I read that a Japan water stone with a grit of 1300 cuts the same as a 600 grit Diamond stone. Anyone, is this true?

 

[DavidF]

A 4000g water stone is about 1200 wet/dry
8000g WS is about 2000 W/D
A "fine" diamond (red) is about 800g w/d or about 1000g W/S

 

[DaveO]

All I know, is that when worn, all sandpaper is the same grit:lol: :lol: :lol:


Dave

 

[clowman]

What about micro-mesh, that's a different scale all together. What's MM similar to in sandpaper grits?

 

[sapwood]

Thanks folks! Your answers were sharp, but not abrasive :mrgreen:

Think I'm going to print this one :icon_thum

Sapwood

 

[Ken Weaver]

"Grits"! - "Grit"! - Sandpaper???? I thought we were going to talk about breakfast!:roll:

 

[cskipper]

Also need to consider micromesh dry and micromesh wet - very different.

 

[DavidF]

Micro Mesh is my new best friend for rubbing out a finish start at 2400 end at 12000 - glossy as you like.

 

[sapwood]

Mike, the avatar is showing progess. Guess the good weather has helped. I'm expecting window boxes and shutters next photo :lol:

Sapwood

Ken,

Sorry, didn't mean to whet your appetite with the post. :mrgreen:

Sapwood

 

[lbmallett]

There is an excellent article in the April 2005 edition of FWW on page 117. It discusses the differences in the grit sizes and the grit numbers for the CAMI and FEPA sandpapers. Not sure how you compare this information with the different sharpening stones, but I offer this FWIW.

 

[cskipper]

There's also an article in the new edition of Woodsmith about (sandpaper) grits.

 

[DaveO]

I found this from Jeff Jewitt:


http://72.14.203.104/search?q=cache6XX2-twczMJ:www.homesteadfinishing.com/pdf/grits.pdf+Sandpaper+grit+comparison&hl=en&gl=us&ct=clnk&cd=2


Dave

 

[erasmussen]

I asked my wife about japanese water stones (shes japanese).
She said yes all the rivers and lakes have stones.:BangHead::BangHead::BangHead: