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I recently noticed some strange discoloration around the output tube sockets of my Novacron amps. Windex sprayed on a soft cloth is helping a little to remove it but I'm wondering if there might be a better option? I'm pretty sure the surface is polished stainless steel.
Aunt Susie :-)
If it has ammonia in it don't get it on any painted areas. It can dull the paint finish. I also would avoid getting it on any silk screen printing as well, just to be on the safe side.
If you have ever used it to clean your windshield on your car and got it on the black molding around the window, good chance you seen the black color from the molding on the cloth or paper towel you were using.
In 2015, the S.C. Johnson website lists the ingredients as water, 2-hexoxyethanol, isopropanolamine, sodium dodecylbenzene sulfonate, lauramine oxide, ammonium hydroxide, fragrance, and Liquitint® sky blue dye.
Try WD40, no kidding. Best stuff that I have ever found for cleaning stainless steel.
Are they the AtmaSphere Novacrons?
What you may be seeing is heat discoloration if it has kind of a black/blue tint to it. Been in the stainless fabrication business for the last 25 years, and the cleaner linked below works well on either mirror-finish stainless or chrome. As always, best to test it in an inconspicuous area first if at all possible (back panel maybe?).
Yes, Atma-Sphere Novacrons. I've got some Midas Touch on order Thanks.
Next project will be replacing the tube sockets.
The Midas touch will work on chrome too. Lots of variation in chrome plating thickness and hardness though, so definitely test it first. It'll clean quite well and should remove heat discoloration if it's not severe, just be sure it doesn't scratch. Has a very fine (like .5 micron particle size) abrasive in it.
And 6bq5 is correct on the stainless. 400 series stainless (410, 430) have a lower nickel content and have some ferrous properties. 300 series (301, 304, 316) have more nickel and are not typically ferrous enough for a magnet to stick. Most bright annealed polishes (ie: mirror finish) are made with 300 series. Not exclusively, but chances are good that you do have chrome if a magnet sticks to it as underneath the chrome plate is typically plain 'ol cold-rolled steel.
This article might be of interest.
I try to avoid the kitchen :-)
I think Windex is the wrong sort of fluid.
If I was to try a normal household product. I would try an oil based furniture polish. Then really wipe it off a fully as possible without some other cleaner. Or even cooking oil, Olive oil.
I tried a magnet this morning and it stuck. But thankfully, I'll still be able to clean my one stainless pot with the jar of Midas Touch I just bought :-)
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