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Carbon black pigment

Matt3d03

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I was talking to a pigment company about flat black pigments and they sent me a sample of theirs that's about to hit the market. I noticed this did not blend into the epoxy at all. The pigment sizes are so much bigger than any pigment I've played with. I wonder if any type of micro grinder is available to use. @BangleGuy , this is the clarity of the epoxy I mentioned I was playing with.

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BangleGuy

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@Matt3d03 was this pigment a powder or in a liquid carrier? You would do better with something like this if you want flat black

I use micas and I have some of this and it works well mixing in epoxy, but it will have a shimmer.

Let me know if you want me to mix a micro batch and take a picture. Here’s a portion of my mica powder stash

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Matt3d03

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Dang! Mica king! I'll have to give that black oxide a look, I was looking for the shimmer to come from the ghost blue. This was a powder but the pigment pieces came much larger than the mica I've played with before. Thanks for the offer on a test batch but I like the trial and error aspect of doing this. Does the black oxide blend like mica?
 

BangleGuy

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Yes, the black oxide is probably what they mix with mica flakes to get a blend. Mica powders are simply ground pigments mixed with mica. They all mix really well in epoxy. Just do a dip stick test on your mixing stick to see if you have enough pigment added. I like the mica epoxy blend to be very opaque.
 

barry richardson

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that's an awesome.inventory Eric, did you accumulate all of that during your bangle phase?
 

BangleGuy

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that's an awesome.inventory Eric, did you accumulate all of that during your bangle phase?
Yes, I was casting a lot of bangles and 4x6 blocks for a company called Carved. I started casting mod blocks (vaping) and then my day job got really hectic so I had to wind it all down.
 

Strider

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A hint I recently discovered:
Carbon black, also know as lamp black is nothing more than a fancy word for regular soot. Yes, products obviously have some binders if in liquid form and what not, but technically you need just a nice piece of fatwood, a perforated can to burn it in, and a metal plate positioned just above the flames to catch the soot. The buildup should be carbon dust of very high levels of of purity, free of volatiles.
A faster and less eco friendly way is burning diesel or petrol in the same manner for s mediocre oily result.
Vigorous shaking in a small container filled with dust and binder should do the trick to homogenize the mix.
I wanted to try filling one with vessel with epoxy and some other powder (not pigment), and attaching it to hammer drill for some tumbling time. I haven't done it yet but I see why it wouldn't work.
 
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