Blackening
Blackening produces a uniform deep-black layer on components made from ferrous materials which gives them a decorative appearance. It is performed by im-mersion in a boiling alkaline oxidizing salt solution.
Salts for blackening pre- and post-treatment products
Product |
Application |
Working |
G19 / G22 |
Alkaline cleaner for hot degreasing prior to blackening |
60 - 80 |
BEIZENTFETTER |
For descaling and partial degreasing prior to blackening |
RT |
FERROBLACK® MH |
Blackening salt containing special additives for a wide range of application. |
140 approx. |
FERROBLACK® HL |
Especially suitable for blackening of brazed joints and copper-coated parts |
140 approx. |
STREICH-BRÜNIERBEIZE |
A fluid product for brushing on or immersion at room tem-perature; ideal for repairs |
RT |