VC BLACKENING SALT -VCBLK HB-18
Immerse the pieces in VCBLK HB-18 solution.
VCBLK HB-18 solution is to be diluted with 6 to 12
parts of water depending on alloy and surface, hardness.
The immersion time necessary to produce the desired
depth of black, is usually one to three minutes. For most
parts a dilution of one part VCBLK HB-18 with 9 parts
of water would give good results (FRP Tank).
