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Copper Powder 99.5% - 99.9%
Product Code: CU155A
Very high purity, air atomized, hydrogen reduced ultra fine copper powder. Spherical particle. High conductivity. High Density.
HTS Code: 7406.10.0000
New product code is CU112SP
Note: Pure copper powders do not show continuity or conductivity by a multimeter. I think there are two reasons for that. One is the low voltage used for the test. The other is lots of air and weak contacts between the particles.
They will show conductivity with higher voltage, when they are compacted and when they are mixed with some oil or resin to form a paste.