Thread: So I thought i was been all innovative and clever but....

Originally Posted by mike1011

Interesting info thank you all

This stuff doesn't feel like 400 grit and the scratch pattern where I tried polishing a blade didn't look like 400 either but looks can be deciving

I was just going to scrap the strop I put it on but curiosity has got the better of me, so I'm going to do what Neil has suggested and hone up to a known grit and see what happens. If I can get any decent pics I'll post em up

Dig up the MSDS for it if you can. It should tell you something useful. The one caution about all of the rouges that have waxes in them is that the wax can obscure the scratch pattern and make the polish look better than it is. Of the "rouges" out there (used loosely by some to describe all buffing wheel polishes), you can bet that the green has chromium oxide in it, the red has iron oxide, the white has aluminum oxide, etc, but you never know what else is in the stick if stuff without looking at the MSDS. Most of the stuff that is not targeted to jewelers, etc, has some sort of cutting agent in it above and beyond the base oxide that determines the color. The "microfine" compound has more al-ox in it than chromium oxide, and bigger particles, the iron oxide "cut" polish that I got from mcmaster carr has aluminum oxide up to 10 microns in it, etc.

Shave test obviously overrules all, but sometimes it's nice to get a head start and read the ingredient list.

Originally Posted by mike1011

Interesting info thank you all

This stuff doesn't feel like 400 grit and the scratch pattern where I tried polishing a blade didn't look like 400 either but looks can be deciving

I was just going to scrap the strop I put it on but curiosity has got the better of me, so I'm going to do what Neil has suggested and hone up to a known grit and see what happens. If I can get any decent pics I'll post em up

Maybe Dremel does not know whats in their stuff, then and choosing to call it '421' has no bearing on it being 400 grit. The damnedest things do happen...