Author Topic: is tempered glass any good  (Read 1206 times)

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Offline DELTA_WOLF

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is tempered glass any good
« on: April 06, 2019, 03:00:11 pm »
so i know if i try knapping it it will break into a bunch of peices but if i cut it to size and then pressure flake it for an edge would it be good? its the tabletop/shelf stuff.
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Offline 1442

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Re: is tempered glass any good
« Reply #1 on: April 06, 2019, 09:17:20 pm »
I don't think tempered glass will work at all.
If it breaks into big pieces or if you can cut it to size it should work but that wouldn't be tempered glass.
I saw a 3/8" thick round glass table top for sale for 30 bucks but I didn't know if table tops where tempered or not.

Offline DELTA_WOLF

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Re: is tempered glass any good
« Reply #2 on: April 07, 2019, 08:57:22 am »
im 90% shure it is
People are less likely to shoot at you if you smile at them -Mad Jack Churchill

Offline Deerhunter21

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Re: is tempered glass any good
« Reply #3 on: April 07, 2019, 03:31:43 pm »
just use normal glass!  ;D
"Only when the last tree has died and the last river been poisoned and the last fish been caught will we realise we cannot eat money." Cree Native-American Proverb

Offline DELTA_WOLF

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Re: is tempered glass any good
« Reply #4 on: April 07, 2019, 05:16:09 pm »
ok ill see if i can find some sheets
People are less likely to shoot at you if you smile at them -Mad Jack Churchill

Offline GlisGlis

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Re: is tempered glass any good
« Reply #5 on: April 07, 2019, 10:07:27 pm »
bottle bottom are good if thick enough

Offline Pat B

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Re: is tempered glass any good
« Reply #6 on: April 08, 2019, 02:17:08 am »
Go to your local glass company and get scraps. Lots of 1/4" glass there.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline jareddchazen

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Re: is tempered glass any good
« Reply #7 on: April 27, 2019, 05:11:06 pm »
I work in stained glass as my day job, nice endless supply of arrowhead material...we even run large flakes for Dalle de Verre windows. Tempered glass is good for shelves and bathrooms. Even if you could flake tempered, it wouldn't have a reasonably sharp edge. It's specifically designed to not.

Besides Dalle flakes, I've used bottle bottoms, 1/8 double strength, and pre-cut then pressure flaked colored glass for arrowheads.

JH

Offline 1442

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Re: is tempered glass any good
« Reply #8 on: April 30, 2019, 07:22:19 pm »
I love stained glass
1/8 double strength, is that like a stronger glass twice as hard to break.

Offline mullet

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Re: is tempered glass any good
« Reply #9 on: May 01, 2019, 10:04:40 am »
I've gone to Walmart and bought cheap, colored plates.
Lakeland, Florida
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Offline Stoner

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Re: is tempered glass any good
« Reply #10 on: May 09, 2019, 04:29:13 pm »
I go to Goodwill Stores and look for colored glass jars, plates, etc. John

Offline vinemaplebows

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Re: is tempered glass any good
« Reply #11 on: May 21, 2019, 05:11:43 pm »
Got some of the old ashtrays to try..
Debating is an intellectual exchange of differing views...with no winners.

Offline jareddchazen

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Re: is tempered glass any good
« Reply #12 on: June 25, 2019, 04:41:20 pm »
@1442 1/8" Double Strength (or just DS) is mostly used for windows and cabinets. Single Strength is 3/32" and used in light applications like picture frames. Not actually double the strength, but in full 4x8 foot sheets, SS is definitely more flexible. DS can be used in knapping, I use it all the time, but you'll generally want to cut it preformed only a little larger than the point you want to make since you have to treat the edge like a mini-slab. 1/4 plate is best to work with, I've learned a lot about turning that 90 degree cut into an edge with it. My favorite to knap is the flakes we take off of dalle de vere slabs. 6x12" and 1" thick. We flake them with hammers and toss the flakes, I always grab a small box full so I've got all kinds of colors. They're flat on one side but can be worked easily and the top "hump" thinned down. I'll make a new post showing those. If you have a stained glass studio near you, go in and ask if they do dalle de vere windows and if they have any of the garbage flakes. Most likely get them for free as they normally just go in the trash.

Offline Zuma

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Re: is tempered glass any good
« Reply #13 on: June 27, 2019, 08:01:36 am »
tempered or plate  glass is great for knapping  table tops, store windows
 sows
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Offline jareddchazen

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Re: is tempered glass any good
« Reply #14 on: June 28, 2019, 04:22:15 pm »
Tempered and plate are not the same. Tempered is a safety glass, similar to the side and rear windows in a car. It cannot be scribed and cut and if you impact the edge it will shatter into thousands of tiny pieces.

Safety note, if you have a table top that is plate and not tempered glass, get rid of it. If it breaks while your legs are under it you risk shards going into you legs and feet. Only use tempered glass for tables.