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topic 11531

CAN I MAKE STAINLESS (300/400) FLAT BLACK OR GRAY AT HOME?


 

PLEASE, WHAT D.I.Y. PROCESS CAN I USE TO MAKE 300 AND 400 SERIES STAINLESS FLAT BLACK OR GRAY?

DALE ORNDORFF
- GRAND ISLAND, New York


 

Do you need an oxidation/anodization process or might some sort of paint or dye paint do, Dale?

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey


 

Brown to black for SS:

13 gm Na2Cr2O7
1 lit H2SO4( 1,55 g/cm3)
temp. 18-25 C,5-10 min.

or

solution 2.(brown):

H2SO4(1,84 g/cm3).......50 ml/lit
Na2S2O3.................200 gm/lit
1 lit water,temp 30 °C

Goran Budija
- Zagreb, Croatia



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