defects during storage of flat glass

hi, during storage of flat glasses they undergo some defects because of producing some alkaline solutions. can somebody tell me how can I solve this problem?

Reply to
moh3en
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Reply to
michele

Very strange. Glass should be stored on edge so even leaking water should not collect between sheets. Quality glass should not have a formula that results in alkaline breakdown.

Reply to
Mike Firth

Yup ... last summer I used a clients' old stock Spectrum dense white opal to bend for replacement lenses for some custom exterior sconces. I did not do the original lenses. They broke a few and came to me because the original (cheapo)creator disappeared in the night .... duh!

Anyway, some substance must have leaked onto the glass, and I have no idea what. I meticulously cleaned the glass prior to firing, as I've fired this Spectrum white before and know you must be careful. But when I took the pieces out of the kiln I would find light grey blotches, even patterns, on the white. No matter how clean I got them, the blotches appeared (with or without overglaze spray). Under intense lighting I was finally able to see a very subtle irid surface stain before firing, which in turn became the grey crud. My only solution was to finally just polish the entire glass surface on an upright felt wheel with cerium oxide. That worked, and drove the price through the roof, and I had already made them wait a year because I was busy skiing Baldy. I could have ordered new replacement glass, but was using the clients' own old-stock, and in hindsight I would order fresh glass if I ever encounter this stain again. I've fired a lot of glass, new and old....this one stumped me (for a while). The client now has better glass lenses than the originals, because mine slumped nice and even ... the originals were fuuuunnnnkeeeee.

cheers, Jacques Bordeleau

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Reply to
sundog

old....this

OH, LOOK WHO'S HERE!

The snow must have melted on the ski-able part of the mountain! Nice to hear from you Jacques. (and yes, that was an undertone of envy in the opening line.)

Reply to
Javahut

hey Doggy, ready for some beach action now? m

Reply to
michele

Hahahahaha.... you two are so funny! Actually the hill stayed open an extra week...heheheh. Great season.... could have still skied the north side if you hiked up, until a hot streak last week that brought out some brown coloration. Actually I'm slaving for a client ... I only skied 28 daze this season. I'm on the home run side of a house full of glass I started a year ago ... one job! T+M!!! Even brought a skilled buddy (and blues harpist) out from Ohio for a month to move the project along. I've been telling everyone else they have to wait a year because I won't start their job until this one is done, or I'd never get done.....and lost many other jobs because of it, although a couple folks have been willing to wait....heheheh. I always tell clients that they wouldn't want me to stop work on their job before it's done and start some on other job, would they? That ends the discussion with everyone agreeing...;-)

I mention all this just so you other peeps out there don't think I'm JUST a goof off...I work lots of seven day weeks in a row to pay for my winters off ... and yes, NEXT winter is mine, paid in advance.

I've been regularly pumping my mountain bike around the paths the past month getting ready for some serious single-tracking this summer, and editing the last few songs for my bands' next practice CD. I have no idea when I could fit in any beach this year, unless it's Galveston when I install the job in a few months ....LOL. But thanx for asking!!!

Sorry I got out of the habit of coming here... I changed ISP a while back and they don't carry newsgroups.... but I finally found a way...a free news-server that allows posting (thanx google). Take care all....

cheers, JB

(never going to be ready for AARP)

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Reply to
sundog

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