- Burnishing of steels :
Burnishing, also known as tanning, is a technique of blackening steels by hot oxidation in a strongly alkaline medium and allowing an improvement of the corrosion protection after deposition of a protective fatty film.Burnishing does not alter the dimensions of the treated parts.
Example: burnishing of guns, screws and springs, etc…
- Burnishing of brass, copper and bronze :
Burnishing is also applied to copper to obtain a decorative appearance. The yellow brass is blackened, then a brushing allows to find the original color in rubbed places and a final protection by a transparent varnish blocks this old look. Also allows the blue shades, blue green, light brown by varying the parameters.
Below are our standard BONDERITE® burnishing processes :
- BONDERITE S-PR 10110
- BONDERITE S-PR 10120
- BONDERITE S-PR 10130
List not exhaustive, contact us for a recommendation or if you are looking for another reference.



