How do you remove the coloring off the feigao?

[Serum]

The fastest and the best way;

(be SURE! to use protective clothes/gloves/glasses and ONLY do it outside doors) and DONT breath the air that comes free when doing it) (must be said)

Use natriumhydroxide, use some hot water to solve it in (use about 85% hot water) and take a cloth in your protective handshoe covered hand dip it in the accid, put it on, and now you can wipe of the annodize.

Normally i dip in the anodized aluminum part, but with a motor i would not reccomend that.. ;) it's of in just 3-5 seconds.

The ez-off takes to much time (for me though)