Mark on fri 14 may 99
I need some kiln glasses that go over my glasses. No one local carries
them, however I can get a very affordable set of welding goggles that are
rated at "Shade 5" and ANSI Z 87.1 that are designed to fit over glasses.
Is this sufficient protection for a cone11 firing?
Mark
====================
"All sloppy and no Joe"
Vince Pitelka on mon 17 may 99
>I need some kiln glasses that go over my glasses. No one local carries
>them, however I can get a very affordable set of welding goggles that are
>rated at "Shade 5" and ANSI Z 87.1 that are designed to fit over glasses.
>Is this sufficient protection for a cone11 firing?
Yes, those are perfect. But you can almost always get oversized tinted
safety glasses from the welding supplier, which should fit over your glasses.
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Home 615/597-5376, work 615/597-6801, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
eden@sover.net on mon 31 may 99
I got a pair of green kiln glasses that go over my glasses from Bailey.
They cost about $12 and work fine.
Eleanora
At 08:53 AM 5/14/99 -0400, you wrote:
>----------------------------Original message----------------------------
>I need some kiln glasses that go over my glasses. No one local carries
>them, however I can get a very affordable set of welding goggles that are
>rated at "Shade 5" and ANSI Z 87.1 that are designed to fit over glasses.
>Is this sufficient protection for a cone11 firing?
>
>Mark
>====================
>
>"All sloppy and no Joe"
>
Eleanora Eden 802 869-2003
Paradise Hill
Bellows Falls, VT 05101 eden@sover.net
Snail Scott on fri 19 aug 11
I own a set of didymium goggles, because I used to do
some glasswork. I own a welding helmet with #10 glass
for electrical welding, and a set of welding goggles with
#5 glass for oxy-acetylene work. I don't use any of these
for looking into the kiln. I have a plain piece of #3 glass,
of the sort used for welding helmets and goggles but
unattached to anything, and I use that instead. Why?
A physicist friend got interested in the relationship between
the kilns I tended and black-body radiation. His calculations
convinced me that UV is a minimal factor, and that IR
protection is paramount. Sodium flare is irrelevant, so
didymium doesn't really help with seeing, though it does
protect a bit. (By the way, when I was a tech tending three
or four fuel-fired kilns reaching temperature at the same
time, I noticed quite a lot of sunburn-like effects and bizarre
freckling, which is what got me asking the hard questions
about exposure. IR does burn! Duh.)
Welding glass seems to provide both better protection
AND better seeing, so that is what I use now, in a light
enough grade to be versatile at most temperatures. Like
most of the respondents on this thread, I find that #3 works
best, though #5 will do, especially at higher temperatures.
However, I do not use goggles. I have found that the extra
time needed to put them on often makes me skip using
them for 'quick looks'. And that can be a lot of 'quick looks'
over time. Especially if you can't see clearly and have to
look for a while! Keeping the glass alone in close proximity
to the kiln means I'm more likely to use it.
Keep it simple. If you ain't gonna actually use it, you might
as well not have it, and for me, the unmounted #3 glass
simply gets used more. Furthermore, I find that if I can see
well, I don't have to look as long, and that's a good thing too.
-Snail
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