Charcoal is more of a makie material but can be used in kintsugi as a cleaning powder. You use it to clean the surface of the piece after you have mixed it with some water.
Kintsugi materials, charcoal

Charcoal is more of a makie material but can be used in kintsugi as a cleaning powder. You use it to clean the surface of the piece after you have mixed it with some water.
Kintsugi materials, charcoal
Brass is an easy to use metal. The brass I have is extremely fine grind, finer than gold keshifun. Since it is so fine it goes on nicely and usually lays flat.
Here is a video showing application of brass.
Kintsugi materials, roiro mikagiko
Roiro migakiko is a fine powder that is mixed with oil to polish graded metal to a final finish. It is finer and more expensive than the other polishing powder, ishiko.
Kintsugi materials, ishiko
Ishiko is a type of powdered stone that is mixed with oil to polish graded metals but not fine powdered metals. It is rougher and cheaper than the other polishing powder, roiromigakiko.
Kintsugi materials, hemp fabric
Hemp fabric can be used to strengthen large fill areas. It is embedded into the sabi mix and care must be taken so it is completely covered by sabi and the threads don’t stick out.