Finishing of aluminum

AVForums

Help Support AVForums:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

ghostinthemachine

AVForums Grandmaster
*
Joined
Jan 9, 2009
Messages
5,466
Reaction score
565
Location
Gauteng
Finishing of aluminum is very easy to do yourself.

Recently I had a plate made for a mates motorcycle from 6 mm 8026 grade aluminum.

When the plate arrived it looked nasty.

547345743501.jpg


I proceeded to sand it down using an orbital sander and some 400 grit paper.

After the sanding I etched the plate in caustic soda solution for 1 hour.

Then it was anodized (40 min electrolysis + 40 min boil)

547345743502.jpg


The caustic soda etching gave the plate a satin finish with the natural crystal grain of the metal displayed.

 
Top