Hand Tools Archive

Subject:
various compounds - difficult to judge
Response To:
Re: The white stuff is... ()

David Weaver
I sold used razors and natural japanese stones on etsy for a while, grading both before selling (to avoid selling razors that don't hold an edge well or stones that don't prove themselves out under a microscope).

I got to know a few nutballs along the way, sharpened a few razors for them on request and then found that they were on a search for I don't know what....One of them told me that he cut himself with a razor that I sent him, that he hadn't seen a razor as sharp before (this isn't an achievement, a step back from that is a better shaving edge - one that cuts hair, but not the skin lifted by the hair - that's what creates razorburn - but he asked me to make one as sharp as I could make it).

Then he started asking me all kinds of questions and sent me a couple of buffing sticks that another sharpener used and told him were finer than green chrome ox graded to 0.5 microns. I didn't find them easy enough to use to tell, but they could very well be linde B in a wax stick. The green chrome is a powder pigment. linde B is super fine and pure white.

We are used to the idea that iron oxide colored sticks are red rouge and more gentle, that blue is often a stick for plastic (sans alumina in some cases), white is aluminum oxide, gold are alumina for carvers and green are chromium oxide.

What really seems to be the case is that almost everything is mostly alumina, and then it's a guessing game as to how fine it is and honing on a clean hard surface and then a look under the scope is the only way to really tell what's what.

I've had green sticks that left stray scratches visible to the naked eye, and the same with iron oxide sticks - but I knew it before getting them except for how closely they were graded, because they all specified that the main component was aluminum oxide.

Long way of saying, find out from the sticks what you can from their MSDS and then the microscope still needs to tell the truth. If visible scratches are gone, then we can't see the difference beyond that, but it's probably not important.

Messages In This Thread

Sharpening and buffing progression pictures *PIC*
Separate on the IH sorby chisels..
If the UK guys are correct...
Comparative Profile Pictures
Re: Comparative Profile Pictures
Re: Comparative Profile Pictures
I have never looked closely at...
Profile pictures *PIC*
Thoughts on the data
Scale of Image
Re: Thoughts on the data
Angle near the edge *PIC*
Re: Angle near the edge
Re: Angle near the edge
This is a difficult thing to do precisely
Re: Angle near the edge
Capturing the Unicorn Profile
Re: Capturing the Unicorn Profile
Outstanding work, Winston! *NM*
Re: Capturing the Unicorn Profile
but, do I need to?
Calcined alumina *PIC*
sounds like gunpowder...
Scratches from various compounds *PIC*
Scratches from more compounds; buff vs stick *PIC*
Other Compounds
Re: Other Compounds *PIC*
Correction
Re: Other Compounds - reinventing the wheel...
will do...
Well! good work
Red stuff
File in useless knowledge
partly my fault for voluminous posts..
hardness of iron oxide
Google monster says
Re: hardness of iron oxide
Wooden planes
Re: Wooden planes—Steve Voigt link *LINK*
Re: Wooden planes
Re: Wooden planes
Re: Wooden planes
Re: Wooden planes
Thanks, Jon!!
Re: Wooden planes
great experiments
Re: great experiments *PIC*
Re: Scratches from more compounds; buff vs stick
wait till you try...
The white stuff is...
Re: The white stuff is...
various compounds - difficult to judge
Re: various compounds - difficult to judge
looking forward to...
Further Observations
Some other things to try
Re: Some other things to try
Re: Some other things to try
Re: Some other things to try
I am anxious to try your suggestion *NM*
Interesting..
Re: Interesting..
not sure I agree
Re: not sure I agree
Re: not sure I agree
Re: not sure I agree
Re: not sure I agree
Factory ground *PIC*
Marples catalog...
Re: Factory ground
Re: Factory ground 1816 *PIC*
Re: Factory ground 1816
Re: Factory ground 1816 *PIC*
blogger grind
Re: blogger grind *PIC*
you're still failing...
after you do your survey, you'll find
Re: Factory ground 1816
Re: not sure I agree
I remember reading this...
great work
Thank you for experimenting
these results will require some study
David & Winston
Buffing wheel vs hard felt
Re: Buffing wheel vs hard felt
Re: Buffing wheel vs hard felt
Re: David & Winston
Thinking about establishing the Unicorn profile
Amen, Reverend
Re: Amen, Reverend
Tormek
if the tormek had a higher speed leather wheel...
Clarification, please
Re: Clarification, please
Re: Clarification, please
Re: Clarification, please
Re: Clarification, please
Preparing a beading blade
Re: Preparing a beading blade
for testing plane blade durability..
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
Suzuki Tool 4000
judging scratches
eek...expensive..
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
Re: Sharpening and buffing progression pictures
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