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by Brad Walker
Sat Jun 16, 2018 8:07 am
Forum: Techniques and Tools
Topic: glass is breaking
Replies: 12
Views: 3500

Re: glass is breaking

Tony Smith wrote:According to the MSDS, it's a styrene-butadiene copolymer. The E6000 uses tetrachlorethylene as its volatile solvent. That means it is not a silicone and is more like rubber cement in its composition.


Thanks for the correction, Tony. I had always assumed it was silicone.
by Brad Walker
Wed Jun 13, 2018 8:02 am
Forum: Techniques and Tools
Topic: Slumping into deep square mold
Replies: 4
Views: 2183

Re: Slumping into deep square mold

First, this is a really difficult mold to use well. It's most likely made as bisqueware and not for slumping. Being 9mm thick gives you a better chance of succeeding that being 6mm thick, but you'll not only have to worry about dogboning you'll also have to deal with the potential for uneven slumpin...
by Brad Walker
Wed Jun 13, 2018 7:58 am
Forum: Techniques and Tools
Topic: glass is breaking
Replies: 12
Views: 3500

Re: glass is breaking

Ed Cantarella wrote:Consider Tony's idea(above) about going with a more flexible glue. Maybe E6000 if you don't want to use silicone.


E6000 is silicone.
by Brad Walker
Sun May 20, 2018 5:27 pm
Forum: Techniques and Tools
Topic: Which kiln wash for Core Lite shelves
Replies: 3
Views: 1488

Re: Which kiln wash for Core Lite shelves

I just use Bullseye more or less the same as any other shelf. Might need recoating a little more often, but not much difference.
by Brad Walker
Thu May 10, 2018 3:57 pm
Forum: Techniques and Tools
Topic: HOMEMADE IRIDIZING?
Replies: 12
Views: 3407

Re: HOMEMADE IRIDIZING?

I wore a respirator and gloves, with the kiln outdoors.
by Brad Walker
Thu May 10, 2018 12:21 pm
Forum: Techniques and Tools
Topic: HOMEMADE IRIDIZING?
Replies: 12
Views: 3407

Re: HOMEMADE IRIDIZING?

Terry Gallentine wrote:Brad--Did the stannous chloride have any detrimental effect on the elements or kiln furniture?


If it did I didn't notice it. But I used my kiln outside and ventilated a lot once the spray was applied. I know potters who use it on a regular basis.
by Brad Walker
Thu May 10, 2018 8:38 am
Forum: Techniques and Tools
Topic: HOMEMADE IRIDIZING?
Replies: 12
Views: 3407

Re: HOMEMADE IRIDIZING?

I wrote about using stannous chloride in the first printing of my book, Contemporary Warm Glass. Used it numerous times to iridize glass in the kiln, but took the directions out of later printings because it got harder and harder to locate due to hazardous chemical regulations.
by Brad Walker
Mon May 07, 2018 8:26 am
Forum: Techniques and Tools
Topic: Relay Mishap
Replies: 2
Views: 1026

Re: Relay Mishap

No need to anneal again, just go straight into the next firing. And do change the relays first!
by Brad Walker
Mon Apr 30, 2018 3:32 am
Forum: Techniques and Tools
Topic: Slumping issues
Replies: 17
Views: 4502

Re: Slumping issues

Sandblast it.
by Brad Walker
Thu Apr 26, 2018 3:38 am
Forum: Techniques and Tools
Topic: Slumping issues
Replies: 17
Views: 4502

Re: Slumping issues

Slumping Program used is as follows fired in EvenHeat Studio 24 Kiln 400F 1265F :20min AFAP 900 1:00hr 150 700 :00 ... then put into B.E Classic mold #8723. It was centered perfectly and then fired to above schedule. Bullseye's recommended schedule for that mold is 300dph to 1225 hold 45 minutes. 1...
by Brad Walker
Thu Apr 12, 2018 1:18 pm
Forum: Techniques and Tools
Topic: When a color doesn't strike
Replies: 2
Views: 1227

Re: When a color doesn't strike

To help it strike better hold in the 1225 to 1240F range for half an hour one hour. Two hours is probably overkill.
by Brad Walker
Thu Apr 05, 2018 10:20 am
Forum: Techniques and Tools
Topic: Skutt km1227 1phase 240v
Replies: 4
Views: 1835

Re: Skutt km1227 1phase 240v

Although it varies by manufacturer, the elements aren't all the same. Lengths can differ, as can other element characteristics. I'd stick to their recommendations. You can also get elements from people other than the manufacturer. Sometimes they're cheaper, sometimes they're not, but they usually ne...
by Brad Walker
Wed Mar 28, 2018 1:55 pm
Forum: Techniques and Tools
Topic: Two layer vase
Replies: 7
Views: 2335

Re: Two layer vase

Brad, do you mean pre-fuse each piece separately? I really want them to be two separate pieces so that they each can "do their own thing" when they fall. 4 hour hold? Will give that a try. Thanks! Well, that's what I meant, but I understand now why you don't want to do that. It's a really...
by Brad Walker
Wed Mar 28, 2018 1:11 pm
Forum: Techniques and Tools
Topic: Two layer vase
Replies: 7
Views: 2335

Re: Two layer vase

A 90 minute hold is probably not long enough. Because of the folding over, the piece will be much more than two layers thick in places, and only one layer in others. I would probably hold around 4 hours. Also, you'd probably have better luck if you pre-fuse the piece, rather than try to do everythin...
by Brad Walker
Tue Mar 27, 2018 8:44 pm
Forum: Techniques and Tools
Topic: making cabochon with coin inclusion?
Replies: 21
Views: 11211

Re: making cabochon with coin inclusion?

Don't try this with pennies made after 1983 -- they're zinc, not copper. Pennies made before 1983 are copper, and pennies made in 1983 could be either.
by Brad Walker
Tue Mar 27, 2018 8:36 am
Forum: Techniques and Tools
Topic: Cheap vases - are they safe to fire?
Replies: 3
Views: 1354

Re: Cheap vases - are they safe to fire?

Most likely the color will just go away in the firing. I've fired bottles that are similar and they just emerge from the kiln all clear.

I wouldn't worry about toxic fumes. And Marty's right -- the vase is probably not compatible with your normal float glass.
by Brad Walker
Fri Mar 23, 2018 2:02 pm
Forum: Techniques and Tools
Topic: Opinions needed for new kiln
Replies: 16
Views: 6917

Re: Opinions needed for new kiln

Marty wrote:Yo- Mr. Walker- merc relays don't click, they hum. Quietly.
signed,
Mr. Kremer


My mercuries click.

My solid state relays say nothing at all.
by Brad Walker
Fri Mar 23, 2018 8:47 am
Forum: Techniques and Tools
Topic: Fused Glass Sinks
Replies: 7
Views: 2590

Re: Fused Glass Sinks

I have been told by Bullseye that Lani and Dan replace the sinks in their bathrooms every few years due to thermal shock. They're wonderful for a seldom used room such as a foyer bath, but don't stand up well to everyday shaving and hot/cold water situations. The cheap ones from China are often temp...
by Brad Walker
Sun Mar 18, 2018 6:33 pm
Forum: Techniques and Tools
Topic: Terrible luck ordering shelves
Replies: 21
Views: 5510

Re: Terrible luck ordering shelves

Go to a large pottery supplier in your area. Ask when they are getting a new shipment of shelves. Physically go through and sort out the shelves you want to buy. Most of the shelves in my area are from Mexico, not England. I one went through an entire shipment of shelves and was unable to find a si...
by Brad Walker
Sun Mar 18, 2018 8:28 am
Forum: Techniques and Tools
Topic: Terrible luck ordering shelves
Replies: 21
Views: 5510

Re: Terrible luck ordering shelves

The best kiln shelves are probably from Bullseye, but they're also among the most expensive.

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Warm Glass

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Suite 700
Clemmons, NC 27012
Phone: (336) 712 8003
Email: wg@warmglass.com