platter black spots won't come off - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

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
Reply
 
Thread Tools Search this Thread
Old 7th July 2012, 10:07 PM   #1
diyAudio Member
 
Join Date: Jul 2012
Default platter black spots won't come off

Dual cs5000 plater: don't know if its aluminum or zinc or both: does not ring when tapped. shinny areas have black carbon like spots that noxon will not take off. Hear simachrome good but any other ideas?
  Reply With Quote
Old 7th July 2012, 11:01 PM   #2
diyAudio Member
 
vacuphile's Avatar
 
Join Date: Apr 2011
Location: Seaside
Enjoy patina & don't worry.
  Reply With Quote
Old 8th July 2012, 07:52 PM   #3
diyAudio Member
 
user510's Avatar
 
Join Date: Jan 2003
Location: Seattle, WA. USA
Quote:
Originally Posted by william13 View Post
Dual cs5000 plater: don't know if its aluminum or zinc or both: does not ring when tapped. shinny areas have black carbon like spots that noxon will not take off. Hear simachrome good but any other ideas?
Does the spot increase in size the more you polish? If so beware that the spot is more than just a surface stain.
If spot size does not appear to change with extensive polish, then you might want to try another polish.

For my zinc Thorens platters I've been using Mother's Mag Wheel polish with excellent results.

-Steve
  Reply With Quote
Old 8th July 2012, 11:59 PM   #4
diyAudio Member
 
Join Date: Jul 2012
I heard that Mother's Mag is great but on the bottle/can it said to not use on anodized aluminum and I think the Dual platter is just that (not sure however). The spot got a lot lighter but only by 75%

Thanks
Bill
  Reply With Quote
Old 9th July 2012, 05:06 AM   #5
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
you might try NEVR Dull, I can make a Thoren's platter look like chrome with this stuff, best regards Moray James.

http://www.nevrdull.com/
__________________
moray james
  Reply With Quote
Old 9th July 2012, 12:20 PM   #6
diyAudio Member
 
Join Date: Jul 2012
Did it take off black corosion spots?
  Reply With Quote
Old 12th July 2012, 04:33 PM   #7
diyAudio Member
 
Join Date: Jul 2012
Default I have used almost every product: stain persists

I can not get these black spots out. The chrome plater or aluminum or zinc (I do not know) really holds on to these blemishes. I have tried magic eraser, simichrome, never dull, etc etc. I believe this is mild corrosion with some mild pitting. The rim surface is grooved (purposely) like a vinyl record. I believe I have to sand to get the corrosion off which means I have to remove the nice grooved surface. I am not an expert sander and would appreciate advice on how to sand a platter.
  Reply With Quote
Old 12th July 2012, 10:31 PM   #8
diyAudio Member
 
Join Date: Oct 2005
Location: Lancashire UK
I wouldn't bother doing any more to it. Etch prime it and paint it. If you can't do it yourself any good auto paint shop can do it.
__________________
Simon.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What are you experiences with imaging and sweet spots? paulspencer Multi-Way 42 10th May 2007 02:57 AM
Price / performance sweet spots preiter Solid State 0 9th January 2007 08:23 AM
Tubes and their sweet spots. ak_47_boy Tubes / Valves 38 15th December 2006 03:42 AM


New To Site? Need Help?

All times are GMT. The time now is 06:06 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2