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by Brad Walker
Thu Feb 07, 2019 9:25 am
Forum: Techniques and Tools
Topic: How much weight can wire inclusions bear?
Replies: 8
Views: 2523

Re: How much weight can wire inclusions bear?

I was not aware there’s a compatibility problem with wire inclusions... Many of the wire and glass pieces made in the 1970's are now starting to crack. And I've seen fused wire pieces crack much more quickly than that when the wire is thicker. The COE for most metals is 150 or higher. So it's not m...
by Brad Walker
Wed Feb 06, 2019 12:05 pm
Forum: Techniques and Tools
Topic: How much weight can wire inclusions bear?
Replies: 8
Views: 2523

Re: How much weight can wire inclusions bear?

What gauge wire? What material wire?

I would be more concerned about long term compatibility than holding up the two layers.
by Brad Walker
Thu Jan 31, 2019 3:32 pm
Forum: Techniques and Tools
Topic: Easy Fire enamels
Replies: 2
Views: 1593

Re: Easy Fire enamels

Lots of enamels out there, none are the same. You'll have to check the specifications (firing recommendations) and content (lead or non-lead, COE dependent or not) for each enamel to make comparisons. Since Easy Fire and Fusemaster are marketed by the same people (Fusion Headquarters), I would conta...
by Brad Walker
Sat Jan 12, 2019 9:52 pm
Forum: Techniques and Tools
Topic: irritating news
Replies: 11
Views: 3871

Re: irritating news

Great to hear from you, Bert, and glad you're back 100%. Missed you.
by Brad Walker
Sun Dec 30, 2018 10:30 am
Forum: Techniques and Tools
Topic: Damming a curved line
Replies: 7
Views: 2360

Re: Damming a curved line

I would cut it out of Ceramaguard, but I'm not sure that's available in Israel.

Second choice would be to use long strips of 3mm fiber paper, which can be wrapped around the dammed area several times, then secured with lots of small kiln posts and strips of cut up kiln shelf.
by Brad Walker
Tue Dec 18, 2018 1:50 pm
Forum: Techniques and Tools
Topic: Where is the iridescent 96?
Replies: 7
Views: 2641

Re: Where is the iridescent 96?

I was at Spectrum years ago and watched them iridized glass with a spray arm going back and forth as the glass came out of the rollers. I think Oceanside has bitten off more than they can chew. some of the clears are terrible. Spectrum would iridize their stained glass, which burns off in the kiln....
by Brad Walker
Mon Dec 17, 2018 9:49 pm
Forum: Techniques and Tools
Topic: Where is the iridescent 96?
Replies: 7
Views: 2641

Re: Where is the iridescent 96?

I believe Uroboros did the coatings on Spectrum's irid. I suspect it's not yet a priority for Oceanside.
by Brad Walker
Fri Dec 14, 2018 11:19 am
Forum: Techniques and Tools
Topic: Removing sticker 'ghost marks'
Replies: 11
Views: 3638

Re: Removing sticker 'ghost marks'

Surprised acetone didn't do it. And bad language seldom works, but it does make you feel better. About the only other thing I can think of is CLR (Calcium Line Rust), which has multiple solvents but may not be available in Australia. On the other hand, the company that put that sticker on has gone o...
by Brad Walker
Fri Dec 07, 2018 9:25 am
Forum: Techniques and Tools
Topic: colourless glue
Replies: 8
Views: 2992

Re: colourless glue

Marty wrote:Check on the cure time- last I used it I left it for a week undisturbed.


Hxtal takes a week to cure. You can speed it up with heat (say, undisturbed under a hot kiln), but that still takes 3 or 4 days.
by Brad Walker
Mon Nov 05, 2018 1:31 pm
Forum: Techniques and Tools
Topic: Stainless ring mold
Replies: 7
Views: 4161

Re: Stainless ring mold

Thicker will work fine.

Or just cut a hole in something like a piece of Ceramaguard and for a lot less money than stainless you'll have something that will work just as well.
by Brad Walker
Mon Nov 05, 2018 1:29 pm
Forum: Techniques and Tools
Topic: mold
Replies: 4
Views: 2391

Re: mold

Consider not using stainless. I have these kinds of things made from regular mild steel, as much as 1/4" thick and just cover the steel with thinfire paper before I use the mold. Works perfect, and any spalling is contained by the thinfire. I use a local metal fabricator. They're fairly easy to...
by Brad Walker
Thu Oct 04, 2018 8:36 am
Forum: Techniques and Tools
Topic: Wetbelt sander belts breaking
Replies: 10
Views: 4000

Re: Wetbelt sander belts breaking

Tony Smith wrote:Are these full-size belts or Covington size? I've never heard of belts coming apart, but I suppose it's possible as the glue hardens over time.


Full-size. I'd never heard of it either until it happened twice this past month.
by Brad Walker
Wed Oct 03, 2018 8:33 am
Forum: Techniques and Tools
Topic: Wetbelt sander belts breaking
Replies: 10
Views: 4000

Re: Wetbelt sander belts breaking

Funny you mention this, Greg. I had two split on me just a couple of weeks ago. Don't know why. The belts were purchased several years ago, so perhaps there's a shelf life issue. But I've never had the problem before.
by Brad Walker
Mon Oct 01, 2018 8:00 am
Forum: Techniques and Tools
Topic: fixing a crack on a tack fused/ slumped piece
Replies: 2
Views: 1651

Re: fixing a crack on a tack fused/ slumped piece

Looks to me like it was annealing, not necessarily thermal shock. Annealing cracks are typically S-shaped and don't go all the way through. Pieces with variations in thickness require a longer anneal than pieces that are smoother. But either way, you can fuse it flat to hide the crack with frit, etc...
by Brad Walker
Wed Sep 05, 2018 7:07 pm
Forum: Techniques and Tools
Topic: Tempered glass on float glass - rainbows?
Replies: 10
Views: 3975

Re: Tempered glass on float glass - rainbows?

Yes. I assume by "rainbows" you mean bright white areas of stress, usually around the corners of the pieces that are incompatible. Well, no, they are rainbow-colored. I think you can see them in the photo that I attached if you blow it up. They are just thin bands of rainbow around the ed...
by Brad Walker
Wed Sep 05, 2018 3:47 pm
Forum: Techniques and Tools
Topic: Tempered glass on float glass - rainbows?
Replies: 10
Views: 3975

Re: Tempered glass on float glass - rainbows?

I want to be sure I understood the rainbows. Rainbows showing in a polariscope indicate stress in the glass, so that would be where the glass MIGHT crack in the future. Am I correct about that? Yes. I assume by "rainbows" you mean bright white areas of stress, usually around the corners o...
by Brad Walker
Wed Sep 05, 2018 1:37 pm
Forum: Techniques and Tools
Topic: Tempered glass on float glass - rainbows?
Replies: 10
Views: 3975

Re: Tempered glass on float glass - rainbows?

The tales of exploding glass I've read online really scare me.... would love to know more about when / why that happens. I wouldn't necessarily believe everything you read about online, but basically there are four kinds of cracks: 1. Incompatibility, where the coefficient of expansion between two ...
by Brad Walker
Wed Sep 05, 2018 12:03 pm
Forum: Techniques and Tools
Topic: Tempered glass on float glass - rainbows?
Replies: 10
Views: 3975

Re: Tempered glass on float glass - rainbows?

It's almost certainly incompatibility. It's a good practice to only fuse float with itself, rather than fuse one piece of float with another. In time, the piece will probably crack further.
by Brad Walker
Mon Aug 13, 2018 3:04 pm
Forum: Techniques and Tools
Topic: Pottery Kiln Wash?
Replies: 4
Views: 2250

Re: Pottery Kiln Wash?

When we made pottery kiln wash in college, it was 50% EPK and 50% Alumna Hydrate. To make it more like glass kiln wash, you would have to add 20% to 30% Alumna Hydrate... right? I always did the opposite. More alumina hydrate, less EPK kaolin. That's a soft wash, doesn't usually stick, single use. ...
by Brad Walker
Sun Aug 05, 2018 9:54 pm
Forum: Techniques and Tools
Topic: out of the norm and need firing schedule
Replies: 9
Views: 3817

Re: out of the norm and need firing schedule

I am in need of a firing schedule for this, and am stumped. This base was a mistake that happened in a class I was taking (taking a few local classes to help me get my feet wet again). I thought it was really cool, though, and decided to use it for something. I can't lift this base layer at all, as...

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Suite 700
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Phone: (336) 712 8003
Email: wg@warmglass.com

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