For production scale lines, mixed with water at 10% by volume.
For use with MKP Presto Black. Keeps Blackening bath in balance to produce high quality, clean Black finishes.
Instant acting Blackener/touch-up for tools/machine parts or decorative surfaces. Dark Black finish.
Unique Gel formula has a slower reaction than BST4 Liquid, giving the user an extra measure of control when dealing with large surfaces. Gray/Black finish.