Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › How to 'brush' aluminum?
New Posts  All Forums:Forum Nav:

How to 'brush' aluminum?

post #1 of 25
Thread Starter 
I was wondering if anyone here knew the best way to get a 'brushed' look
on aluminum.
post #2 of 25
How to brush Aluminum - bit-tech.net Forums

or for the circular pattern you can get a wire brush drill attachment (as apposed to doing it by hand)
post #3 of 25
Thread Starter 
Thanks for the link. I Googled, and found this How to Brush Aluminum | eHow.com as well as a couple of other threads in
automotive sites. They all recommend the Scotch-Brite pads (red), and
say to always brush in the same direction. The beeswax idea in the above
link sounds good to me; no painting.
post #4 of 25
I did this one time. It takes a lot of patience! and you can't try to half ass it or it will look terrible (haha personal experience)... anyway just take your time with it.
post #5 of 25
how about buying what ever it is in brushed aluminium?
post #6 of 25
Quote:
Originally Posted by mark2410 View Post
how about buying what ever it is in brushed aluminium?
This is a DIY sub-forum, remember?
post #7 of 25
My bet is that he has an enclosure already made specifically for his application and it's not made in brushed.
post #8 of 25
Carefully make straight passes with wire wool if it's unclad aly, if it's clad scotchbrite will do well. Another nice finish for aly is, if you have any friends that work in a paint shop or a machine shop is to have it grit blasted, nice matt flat finish.
post #9 of 25
Quote:
Originally Posted by nickyboyo View Post
Carefully make straight passes with wire wool if it's unclad aly, if it's clad scotchbrite will do well. Another nice finish for aly is, if you have any friends that work in a paint shop or a machine shop is to have it grit blasted, nice matt flat finish.
if you use water with the scotchbrite it will last longer and wont dig into the metal too deeply...wet the pad like a rag and wring it out a few times before you use it on the metal. The media blasting works really well, but any dirt or oil from your hands will instantly stain the matte finish, showing up fingerprints and will have to be given a coat of clear spray paint. you can see an example in my sig...plexi max has some bead blasted panels before they were painted black...
post #10 of 25
Thread Starter 
Quote:
Originally Posted by Juaquin View Post
My bet is that he has an enclosure already made specifically for his application and it's not made in brushed.
Correct-a-mundo. I just got a couple of panels for a Hammond N1601 case
from FPE in raw aluminum.

Update: I just finished 'brushing' them. I tried the red Scotchbright, and it
worked very well. I then tried one of those sanding sponges. The grit level
was labled 'fine/medium'. The sponge worked extremely well, and was pretty
easy. Yes, you need to work slowly, and go in one direction. I found that
pulling toward me worked the best. I also used a guide board to keep the
marks going straight.

Overall, I'm quite pleased with the results.
post #11 of 25
Quote:
Originally Posted by vixr View Post
if you use water with the scotchbrite it will last longer and wont dig into the metal too deeply...wet the pad like a rag and wring it out a few times before you use it on the metal. The media blasting works really well, but any dirt or oil from your hands will instantly stain the matte finish, showing up fingerprints and will have to be given a coat of clear spray paint. you can see an example in my sig...plexi max has some bead blasted panels before they were painted black...

Yes, everything vixr says is correct, especially the blasted aly just being a grease magnet. Lovely work on the plexi max enclosure- i do like the thick Al sheet side panels. Blasted Al with matt black paint looks just so good. I will post my latest build up shortly, Al front and rear panels, but much smaller gauge sheet- 0.063", folded for attachment and strength. I knew i should of taken photo's of the start to finish build process, your slideshow is very cool.

Just looking at your case design again- our idea's are very similar. Hat's off to you bud.
post #12 of 25
Quote:
Originally Posted by nickyboyo View Post
I will post my latest build up shortly, Al front and rear panels, but much smaller gauge sheet- 0.063", folded for attachment and strength. I knew i should of taken photo's of the start to finish build process
cant wait to see it... other builders have influenced my work and I just plain enjoy seeing some of the killer stuff you guys can do.
post #13 of 25
To get an even finish, I just polish the aluminum with fine sandpaper and then put it in strong Phosphoric Acid.
post #14 of 25
i just used 100 grit sand paper on a DIY aluminum chassis for a tube guitar amp i'm building. it took quite a bit of sanding to get it a uniform color/grain, but i'm pleased with the results. i may try taking the grain down a bit with 600 grit.

so far, it's withstood my greasy fingers without blemish. i still may try spraying a clear coat over it.

cotdt,
does the acid just brighten it?

post #15 of 25
Quote:
Originally Posted by fishski13 View Post

cotdt,
does the acid just brighten it?
the acid does the opposite, it gives it a matte finish. useful for heatsinks, as a matte finish radiates heat better than a polished finish.
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › How to 'brush' aluminum?