rec.crafts.glass Google Group

Re: laminated glass tubes

uncle...@hate.spam.net (Uncle Al) — Sat, 12 Dec 2009 23:34:05 UT

The hazard is not the thick wall glass tube. The hazard is surface
damage allowing the glass to fail in tension. A wafer of boron
carbide can have a razor edge. Stroke it across a glass tube normal
to the long axis. the imperceptable scratch, when flexed scratch
outward, parts the tube as though it were never one piece.

Re: laminated glass tubes

lauri...@dnainternet.net (Lauri Levanto) — Sat, 12 Dec 2009 17:17:01 UT

What aren the hazards?
Glass shards of explosion,
Expanding gas volume?
some materials are volatile?
You apparently want to warm up and cool in mionutes.
That is lot of stress on any glass.
Shards can be conteiined between laminated windows
Escapinh gas needs a safe path out
Fire hazard must be in control.

Re: laminated glass tubes

uncle...@hate.spam.net (Uncle Al) — Sat, 12 Dec 2009 16:09:46 UT

The cute part is seeing critical point opalescence for CO2, N2O, SF6,
CF3Br, propane, CCl2F2, CH2F2, ethylene, C2F6, etc. Gotta have a
through-sight path.

Re: laminated glass tubes-

jemeb...@xs4all.nl (JEMebius) — Fri, 12 Dec 2009 22:52:45 UT

The Boerhaarve Museum in Leiden, NL ( [link] ,
phone +31.71.5214224) possesses a small sealed glass tube containing liquid CO2. In a
9-month exhibition this tube was heated up to about 40 Celsius and cooled down to room
temperature (about 20 Celsius) over and again.
The CO2 turns supercritical and back to subcritical each time the temperature passes 31

Re: laminated glass tubes

nos...@sonic.net (Mark Thorson) — Fri, 12 Dec 2009 21:11:09 UT

What about a box that is metal on all sides
but one, the latter being the laminated plate
glass?
Or maybe metal on all sides with a video
camera and lamp inside with the tube.

Re: laminated glass tubes

headmas...@hogwarts.physics_q (Androcles) — Fri, 12 Dec 2009 17:49:48 UT

If you use a thick-wall tube of toughened glass then why would
you need a protective tube at all? Seems to me you are making
hard work for yourself taking a precaution that is excessive, but
then I don't know what your costs are. Have you approached
any glass manufacturers and obtained quotes?
[link]

Re: laminated glass tubes

nos...@spamless.com (jonnie) — Fri, 12 Dec 2009 17:08:00 UT

wont work for that pressure and time. Why 100 years? all tubs burn in two or
three years.

Re: laminated glass tubes

uncle...@hate.spam.net (Uncle Al) — Fri, 12 Dec 2009 16:23:01 UT

Try? There is no "try." Do, or do not. 200 bar is 2900 psi, in
glass! If there is no boom today there will be boom tomorrow.

Use polycarb with a weather package, like exterior use Uvex.
Hardcoating the outside (e.g, eyeglass lenses) can compromise shatter
resistance.
Use tempered glass tubes for greater strength. Molten salt ion

Re: laminated glass tubes

bernh...@bksys.at (Bernhard Kuemel) — Fri, 12 Dec 2009 16:08:23 UT

You mean fill the gap with water glass and seal the end with e.g. silicone?
The inner pressure tube must remain visible. Look here: This is a
pressure tube with a polycarbonate protective tube:
[link]
This is a 60 mm OD, 7 mm wall protective glass tube breaking at a test

Re: laminated glass tubes

bernh...@bksys.at (Bernhard Kuemel) — Fri, 12 Dec 2009 15:41:21 UT

I do make explosion tests with display tubes filled to higher than
normal pressure. But acquiring the materials costs money and making the
pressure and protective tubes is a lot of work so I try to pick the
ideal materials at first.
Not unless they remain practical. I'm currently thinking of 60 mm total

Re: laminated glass tubes

nos...@spamless.com (jonnie) — Fri, 12 Dec 2009 15:07:44 UT

Try waterglass mixed with a sealer
Else use fiberglass threads - used on High pressure Nitrogen tanks

Re: laminated glass tubes

headmas...@hogwarts.physics_q (Androcles) — Fri, 12 Dec 2009 14:57:54 UT

Why not make samples and test them by breaking them at 200 bar
and seeing what the result is?
Any restriction on thickness (bullet -proof glass)?
Any restriction on wire?
[link]

laminated glass tubes

bernh...@bksys.at (Bernhard Kuemel) — Fri, 12 Dec 2009 14:08:59 UT

Hi!
I make display glass tubes with high pressure content (up to 200 bar).
To protect the tubes from damage and to protect the spectators from
shrapnel in case of an explosion I try to make a protective cover.
Previously I used polycarbonate tube which is strong enough, but is easy
to scratch and may turn brittle eventually. So I'm looking for something

Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Wed, 12 Dec 2009 08:20:01 UT

CHARTER for REC.CRAFTS.GLASS
PREAMBLE:
The newsgroup rec.crafts.glass was created primarily
for the purpose of discussion related to working with
glass. In order to improve the mechanism whereby we
may do so without undue distraction, we, the netizens
of rec.crafts.glass, do hereby ratify the amendments

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Re: black magic patina etc

chop48...@yahoo.com (Steve) — Sun, 12 Dec 2009 16:52:51 UT

Due to the fact that patina is a chemical reaction, the chemicals react with
the base metal. The only way to get colors other than those commercially
available, simply, is to change the base metal.
There are other colors, all results depend on how much work you put into the
application. None are "simple".

Christmas presents:handbags for your family

limeng...@gmail.com (limeng333333) — Thu, 12 Dec 2009 03:33:04 UT

Christmas is right around the corner. Do you have a list handy? Do you
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Are you stressed yet? It’s amazingly easy to get stressed already,
especially when you’re dealing with having to do everything for your
family. do you go shopping for yourself ? Are you ready for the

Patina Buddy?????

b...@home.sleeping (NoBody) — Tue, 12 Dec 2009 22:17:58 UT

I'm getting chemicals etc for applying patina and I see this clump
of "brass wool" that is supposed to do something fabulous. Anybody use
it or know what the heck it does?

Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Tue, 12 Dec 2009 08:20:01 UT

Re: black magic patina etc

an...@peak.org (Chemo the Clown) — Sat, 11 Nov 2009 22:21:22 UT

Jax makes a green and I think a copper plate of some sort. Jax
Chemicals.

black magic patina etc

b...@home.sleeping (NoBody) — Wed, 11 Nov 2009 01:36:52 UT

Anybody know if there are any brush-on, rinse-off acid washes for
solder/came etc in colors other than black and copper? Golden maybe?
Greenish aged type? Where to get? Personal observations of use?
TIA, Bob

Art Glass Top Sites

a...@downeaststainedglass.com (DownEastSG) — Tue, 11 Nov 2009 13:51:15 UT

New top site list open to all art glass websites.
Free to join!
[link]

Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Mon, 11 Nov 2009 08:20:00 UT

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Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Sun, 11 Nov 2009 07:20:00 UT

Re: Hello

an...@peak.org (Chemo the Clown) — Thu, 10 Oct 2009 16:45:22 UT

Say what?

Re: For Sale: Premodded Video Game Consoles, Backups & Retro Stuff

7373cst...@googlemail.com (c steel) — Thu, 10 Oct 2009 00:41:24 UT

may you send me a list of nintendo famicom games for sale?Charles
steel.

Hello

roy.1...@yahoo.com (leeno) — Wed, 10 Oct 2009 23:14:11 UT

Excuse me!!
Would you stop for a moment?!
O...man...Haven't you thought-one day- about yourself ?
Who has made it?
Have you seen a design which hasn't a designer ?!
Have you seen a wonderful,delicate work without a worker ?!
It's you and the whole universe!..
Who has made them all ?!!
You know who ?.. It's "ALLAH",prise be to him.

For Sale: Premodded Video Game Consoles, Backups & Retro Stuff

gutter1...@yahoo.com (milli) — Wed, 10 Oct 2009 05:51:43 UT

We're a video game specialist and wholesaler for modded consoles,
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Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Fri, 10 Oct 2009 07:20:00 UT

Re: call for Artists - Athens Indie Craftstravaganzaa Holiday Market

this#is$really*my&addre...@parkrrrr.com (Ron Parker) — Thu, 10 Oct 2009 16:07:37 UT

You have to actually click a link to determine that it's of no interest?
I didn't have to look any further than the subject line. A holiday "craft"
show spamming for "artists"? Yeah, I'll pass, no matter where it is.

Re: call for Artists - Athens Indie Craftstravaganzaa Holiday Market

lyba...@earthlink.net (Matthew Lybanon) — Thu, 10 Oct 2009 15:24:42 UT

In article
<28702169-e164-4bd2-89a2-e9430 0057...@l2g2000yqd.googlegroup s.com>,
Athens Indie Craftstravaganzaa
Greece?
Georgia?
Ohio?
Alabama?
...?
You would show much more courtesy if your message (or preferably the
subject line) identified the location. Why should people have to click
a link and possibly search a website for information, before finding out

call for Artists - Athens Indie Craftstravaganzaa Holiday Market

athensindiecraftstravagan...@gmail.com (Athens Indie Craftstravaganzaa) — Thu, 10 Oct 2009 03:56:05 UT

Athens Indie Craftstravagazaa is now accepting applications for our
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We are looking for artists and makers of all persuasions, from fine
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Visit our website [link] for show

Enamel & Glass In Same Kiln?

danamure...@gmail.com (Dana Crawford) — Thu, 10 Oct 2009 14:10:01 UT

Can I use the same kiln for both enameling and fusing glass? I read
something that said you can't do this, but no reason why was given.
Does it have to do with using leaded enamels?
Also, is it necessary to have an exhaust hood over the kiln that vents
outdoors, or is this not necessary if I don't use leaded enamels? I'm

Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Thu, 10 Oct 2009 07:20:01 UT

Re: FS, Bevelling equipment

chop48...@yahoo.com (Steve) — Sat, 09 Sep 2009 22:33:40 UT

All sold, going to its new home in Washigton.

Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Wed, 09 Sep 2009 07:20:01 UT

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Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Tue, 09 Sep 2009 07:20:00 UT

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Announcement: new eBook for artists

ja...@jamesphotography.ca — Wed, 08 Aug 2009 17:36:40 UT

Announcement:
James Photography ([link]) has created a new
resource for artists who wish to take great photographs of their
artwork: an eBook called "Product Photography for Artists". Created to
be a self-paced workshop-on-a-disk, it introduces one to the
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Re: Where to go in Czech Republic?

s...@elske.nl (Elske) — Mon, 08 Aug 2009 15:38:02 UT

"Robert Christ" <chr...@christonline.de> schreef in bericht
I
stained
of
too
(unbekannt)
you
Oke. This one is bookmarked!
That would be awesome! Let's see if I/we can arrange something ;-)
Thanks! Also for the info!

Re: Where to go in Czech Republic?

chr...@christonline.de (Robert Christ) — Mon, 08 Aug 2009 09:36:38 UT

Hi,
you can buy our glass through
Groothandel Pfann GBB
Jules Verneweg 32
NL-5015 BM Tilburg
Telephone: + 31-(0)13-5325118
Telefax: +31-(0)13-5800350
E-Mail: tilburg (at) pfann.nl
Internet: [link]
or
Groothandel Pfann BV
Industrieweg 22D
NL-3738 JX Maartensdijk
Telephone: +31-(0)346259040
Telefax: +31-(0)346212836

FS, Bevelling equipment

chop48...@yahoo.com (Steve) — Fri, 08 Aug 2009 23:36:42 UT

Have one hell of a deal on some bevelling equipment, most recent owner
didn't outlive them, sad to say so here is your chance to get some great,
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details if you post here in a reply as interested.
Consists of SommerMaca rougher, smoother, Cork wheel and Felt wheel, all

Re: Where to go in Czech Republic?

s...@elske.nl (Elske) — Fri, 08 Aug 2009 15:37:11 UT

"Robert Christ" <chr...@christonline.de> schreef in bericht
my
exactly.
Nice! Thanks!
Or maybe I should just visit your factory and buy glass there. Too bad you
don't do tours ;-)

Re: Where to go in Czech Republic?

chr...@christonline.de (Robert Christ) — Fri, 08 Aug 2009 13:19:11 UT

Hi,
I´m sure, that there are some nice stained glass projects:
[link]
This company is a stained glass studio which used our
([link]) mouthblown glass sheets for some projects.
Best regards and have a nice weekend,
Robert

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Charter & (pointer to) FAQs

st...@snip.twovoyagers.com (RCG. FAQ. BOT) — Sun, 08 Aug 2009 07:20:00 UT