Thread: Chrome oxide powder on balsa

Euclid has it right, mixing the powder with oil, it does permeate into the balsa. As far as powder versus spray or crayon. I find the powder goes a very long way. I bought a jar containing 100 grams for $8. And believe me it is enough for hundred of strops. I bought mine from a pottery supply company, as they use it as a glaze and colouring for clay stuff.

I vote for Tom but would do it outside knowing how I generally make a mess.

JTMke made several balsa blocks with SRD spray-on CROX and leather on the other side. The blocks were about 4 inches (~10 cm) thick. They were quite nice. Several guys at Dinnermint's meet got them.

Any of you guys do know where to source the CrOx powder? some place like where you can order immediatelly?
and also, any of those places do sell 0.3 micron CrOx? it would be nice to put in the middle of the progression betweenthe 0.5 CrOx and the 0.1 FeOx

thanks!

Wow that's what I call chasing an edge!. 5. 25 and. 1 of a micron. Go get em, let us know how it all shaves

Originally Posted by gabrielcr78

Any of you guys do know where to source the CrOx powder? some place like where you can order immediatelly?
and also, any of those places do sell 0.3 micron CrOx? it would be nice to put in the middle of the progression betweenthe 0.5 CrOx and the 0.1 FeOx

thanks!

Whipped dog! He has exactly what you are looking for and he uses kremer pigments which are very pure. A .3 CrOx and a .1 FeOx. Excellent value too. I think around $3 and you get enough for two life times.

Originally Posted by Steel

Whipped dog! He has exactly what you are looking for and he uses kremer pigments which are very pure. A .3 CrOx and a .1 FeOx. Excellent value too. I think around $3 and you get enough for two life times.

wow thanks man! i'm right abou to place an order to Larry for a knot and some some neatsfoot oil! i'll just throw that in. i thought his CrOx was actually .5! i0'll go check for the .3 micron!
thanks again!

Yeah not visible easily... its on the strops section. If you contact then on FB they can just assemble the order with that

BTW, it'll be powder... get one of those spray bottles in wallmart and slme 90 degree alcohol ans mix it in the bottle.with a small part of the bad content... maybe just a pinch or two for 2oz... easy to apply, dries quicky and not messy... it is my new favorite way to apply the powder version of crox and feox....

I spoke to a mate who has experience in lapidary work, reckons Cerium Oxide powder bought from lapidary suppliers at a reliable. 3 of a micron is the good gear, and is treated the same as the other powdered substances re application. I'm going to track some down, although I feel it's a bit of edge chasing, I mean. 5 micron is same as a gok 20k, so what can be the noticeable difference when you are looking to go finer than a gok 20. It would have to be a risk of the edge collapsing on itself. Anyone tried a.
.1 micron edge? Is there any difference from. 5 crox?

Yup, a big difference between .5um/30k grit and .1um/160k grit.
few razors and faces can take it.

CBN is faster and more consistent than Chromium Oxide. Kremer Pigments has all the natural pigments, they are not expensive.

Abrasive size in microns (μ) Grit Size (JNS)
80.0 #180
45.0 #320
30.0 #500
16.0 #1,000
8.0 #2,000
4.0 #4,000
2.0 #8,000
1.5 (1 1/2) #12,000
1.0 #16,000
0.75 (3/4) #24,000
0.50 (1/2) #30,000
0.25 (1/4) #60,000
0.125 (1/8) #120,000
0.10 (1/10) #160,000

I wonder about the "Grit" ratings of natural pigments, "pure" Chrome Oxide and Iron oxide finishes are different, from CBN synthetic finishes of about the same size, so I wonder about the .3 and .5 ratings of Chrome Oxide.

A .10um CBN edge is too sharp for me and will exfoliate skin, where a ".10um" Iron Oxide edge will not, it is comfortable, but not "sharp".



But, pure Chrome Oxide is very capable of providing a smooth finish, calming most edges and has been used for at least a hundred years for razors. I have tested most of the razor quality Chrome Oxide and they all perform about the same.

It can, and has been stropped on daily, for over a year on the same razor, with no ill effects to the razor, and will eventually remove all the visible stria from a bevel.

It is a good paste to begin experimentation, though remember that substrate make a big difference. A piece of cardboard is a good medium to experiment on.