Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Construction Tips Construction techniques and tips

Protect aluminum face!
Protect aluminum face!
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 18th April 2012, 07:44 PM   #1
lanchile is offline lanchile  United States
diyAudio Member
lanchile's Avatar
Join Date: Sep 2008
Location: in my house!
Default Protect aluminum face!

I have been looking for a protecting coat for the face of my aluminum diy amp. I found VHT clear paint also I am thinking using clear polyurethane. Do you know any other way to protect aluminum but it has to be clear.
  Reply With Quote
Old 19th April 2012, 12:50 AM   #2
SoNic_real_one is offline SoNic_real_one  United States
diyAudio Member
Join Date: Jan 2008
Location: Virginia
Anodizing - Wikipedia, the free encyclopedia
  Reply With Quote
Old 19th April 2012, 01:39 AM   #3
No 4 is offline No 4  United States
diyAudio Member
Join Date: Nov 2011
Location: Carterville, IL
Im using a couple of coats of automotive wax, buffed with a microfiber cloth. Its cheap and finger prints just wipe off.
  Reply With Quote
Old 19th April 2012, 03:16 AM   #4
bear is offline bear
diyAudio Member
bear's Avatar
Join Date: Apr 2002
Location: New York State USA
unless there is some grain to the surface and the aluminum is perfectly free of oils and dirt, it will not be so easy to get a nice looking clear coat to stick.

polyurethane varnish will end up thick and plasticy - try it on scrap first. I don't like it.

Anodizing is tricky, and usually will give a matte finish unless you do some special tricks, ANY flaws in the original piece, even if they are sanded off, or scratches will jump out after anodizing. Best to send out to a metal finisher for anodizing. It's not so cheap any longer, but if you find a local place that you can walk in to, you have a good shot at cheap...

wax I guess is ok, but it often feels a bit oily to the touch... maybe not... anything that gets past the wax will try to etch the surface...

a good quality lacquer may work ok... very thin coat, not the thick stuff that usually comes out of spray cans... most can stuff is just clear acrylic paint. Again test on scrap, and let it dry a week or more before deciding - gotta see how hard it is and if it really holds to the surface.

There are self etching primers now, if you want to go for a paint finish...

Aluminum is difficult to finish, I usually send out and get things anodized, although I have done a coarse grain finish with lacquer on some things, I am not always satisfied with it though.

That's all I have to bring to this party.

http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
  Reply With Quote
Old 24th May 2012, 02:09 PM   #5
winchesteramps is offline winchesteramps
diyAudio Member
Join Date: May 2012
I have started sending my aluminum out for powder coating. For panels it's very cheap, really quick and it holds up great. I have seen the diy kits but I'm pretty sure I would never have enough panels done to recoup the one time costs of the equipment. I live just outside of Houston so there are lots of powder coating resources in the area. Good luck.
  Reply With Quote
Old 24th May 2012, 02:56 PM   #6
djQUAN is offline djQUAN  Philippines
diyAudio Member
Join Date: May 2004
Location: manila
Send a message via MSN to djQUAN Send a message via Yahoo to djQUAN
If you're going for a brushed look, I used clear coat in rattle can. I think the type was acrylic.

After wet sanding with coarse grit paper, wash with water to remove debris, wipe and air dry then spray a few coats of clear. Seems to stick well to the sanded aluminum.
Attached Images
File Type: jpg IMG_0126.JPG (124.5 KB, 145 views)
File Type: jpg IMG_0130.JPG (58.7 KB, 142 views)
File Type: jpg IMG_0132.JPG (60.7 KB, 142 views)
File Type: jpg IMG_0135.JPG (62.0 KB, 142 views)
  Reply With Quote
Old 26th May 2012, 06:58 AM   #7
Caroline Willison is offline Caroline Willison
diyAudio Member
Join Date: May 2012
Default Protection of aluminium face.

Mostly aluminium are coated for corrosion resistance.
One should not use any wax or polish that contains abrasives.
Unprotected aluminium quickly corroded and pit when exposed to excessive moisture.
  Reply With Quote


Protect aluminum face!Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
fuzz face help eugene martone Instruments and Amps 50 13th May 2012 02:03 AM
the new face of vinyl berndt Analogue Source 0 8th July 2011 05:23 PM
Glue for aluminum face of Peel & Seal Loren42 Multi-Way 0 20th June 2011 11:18 AM
Face to face with the devils's - tomtt The Lounge 10 14th June 2011 08:29 PM

New To Site? Need Help?

All times are GMT. The time now is 05:40 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio