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haze on mirrors?
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Every so often, I am recently finding that a haze remains on mirrors that I have cleaned and aluminized, even ones that I have stripped. I am wondering if it might be from the composition of the paper towels I use for the final drying... Any thoughts? ? Guy Brandenburg, Washington, DC? http://gfbrandenburg.wordpress.com/ http://home.earthlink.net/~gfbranden/GFB_Home_Page.html ============================ |
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No, I don't. Never have, except for polishing & figuring. This phenomenon is recent. Not quite sure what you are trying to say. ? Guy Brandenburg, Washington, DC? http://gfbrandenburg.wordpress.com/ http://home.earthlink.net/~gfbranden/GFB_Home_Page.html ============================ From: Thomas Janstrom To: VacuumX@... Sent: Friday, October 5, 2012 1:26 PM Subject: Re: [VacuumX] haze on mirrors?
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I know this going to sound silly, but
you are using distilled water right? If so then that just leave
the paper and possibly anything that might get transferred from
your gloved hands to those towels.
Cheers, Thomas. On 4/10/2012 11:59 AM, Guy Brandenburg wrote: ? |
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can you image it in any way ????????? maybe with a little puff of breath to make a bit of surface condensation so we can see it ???
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The only time i ever see fog on the mirror after stripping is from something that went wrong in the aluminizing process.? something like diff pump oil vapor getting into the chamber during the aluminizing process and sticking to the glass as a kind of soot.? Drew in soggy FLA ------------------------------------------------------------ On Fri, Oct 5, 2012 at 2:18 PM, Thomas Janstrom <t_janstrom@...> wrote:
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Not diffiusion oil. I'll try to take some images. ? Guy Brandenburg, Washington, DC? http://gfbrandenburg.wordpress.com/ http://home.earthlink.net/~gfbranden/GFB_Home_Page.html ============================ From: Andrew Aurigema To: VacuumX@... Sent: Friday, October 5, 2012 7:25 AM Subject: Re: [VacuumX] haze on mirrors?
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can you image it in any way ????????? maybe with a little puff of breath to make a bit of surface condensation so we can see it ??? The only time i ever see fog on the mirror after stripping is from something that went wrong in the aluminizing process.? something like diff pump oil vapor getting into the chamber during the aluminizing process and sticking to the glass as a kind of soot.? Drew in soggy FLA ------------------------------------------------------------ On Fri, Oct 5, 2012 at 2:18 PM, Thomas Janstrom <t_janstrom@...> wrote:
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开云体育I know this going to sound silly, but
you are using distilled water right? If so then that just leave
the paper and possibly anything that might get transferred from
your gloved hands to those towels.
Cheers, Thomas. On 4/10/2012 11:59 AM, Guy Brandenburg wrote: ? |
开云体育If they have changed the treatment of
the municipal water supply then a new chemical may be being
deposited on the glass prior to coating leading to the haze.
Option two (more remote) is that you have something contaminating
you chamber, that can be very hard to track down though. Try using
distilled water for the final rinse for a few mirrors (the cheap
stuff for irons at the supermarket will work) and see if that
helps?
Thomas. On 4/10/2012 6:07 PM, Guy Brandenburg wrote: ? |
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On Fri, 2012-10-05 at 10:26 -0700, Thomas Janstrom wrote:
I am very new to this vacuum thing, but I would guess that blowing water off a mirror would be a good way to finish the cleaning process, but apparently is not recommended. I've also been known to wash dirty optical disks with a drop of soap and running water, then rinse, blow the bulk of the water off by mouth, then spin the rest off in an old CD drive. My thinking has been that touching the surface is not good, even with soft paper, so I've looked at using streams of water and air to get the job done. I also wonder if an ultrasonic cleaner might be useful? Looks like these guys finish with alcohol and dry with paper towels of some sort: -- Kirk Wallace California, USA |
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Judging by recommendations and videos I've seen, there are lots and lots of different ways of cleaning mirrors before coating!? ? Guy Brandenburg, Washington, DC? http://gfbrandenburg.wordpress.com/ http://home.earthlink.net/~gfbranden/GFB_Home_Page.html ============================ From: Kirk Wallace To: VacuumX@... Sent: Sunday, October 7, 2012 8:08 PM Subject: Re: [VacuumX] haze on mirrors?
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On Fri, 2012-10-05 at 10:26 -0700, Thomas Janstrom wrote:
> > I know this going to sound silly, but you are using distilled water > right? If so then that just leave the paper and possibly anything that > might get transferred from your gloved hands to those towels. I am very new to this vacuum thing, but I would guess that blowing water off a mirror would be a good way to finish the cleaning process, but apparently is not recommended. I've also been known to wash dirty optical disks with a drop of soap and running water, then rinse, blow the bulk of the water off by mouth, then spin the rest off in an old CD drive. My thinking has been that touching the surface is not good, even with soft paper, so I've looked at using streams of water and air to get the job done. I also wonder if an ultrasonic cleaner might be useful? Looks like these guys finish with alcohol and dry with paper towels of some sort: http://mthamilton.ucolick.org/public/tele_inst/2006Aluminizing/eg/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA |
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Paul Anderson
开云体育Well, I spent a little bit of time in a physics lab where they working with high vacuum. The technique they used most often was while wearing rubber gloves, rinse with acetone and wipe off with kimwipes.? On 2012-10-04, at 2:59 PM, Guy Brandenburg <gfbrandenburg@...> wrote:
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Kirk Wallace
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