Comment

Comment by Joseph Fireborn on October 7, 2017 at 4:55pm

Thanks Norm as per usual!

Comment by Norm Stuart on October 7, 2017 at 4:46pm

All three versions of Orange Street are in  the Insight-Live glaze database.

The Orange Street Frit is "chemically identical" by replacing the soda feldspar, gerstley borate and dolomite with Ferro 3134 and 3110 frit - and making a few other small adjustments.

I like my New Orange Street GB which stays where you put it, with the Silica to Alumina Ratio reduced from 8.9 to 7.3 while looking the same to me. Creating a frit version of New Orange Street GB without gerstley borate wouldn't be difficult. I can give you some tips as you work on it with the Insight-Live software.

I just sent you an invitation to join George Lewter's Insight-Live  User Group. 

Follow the link to join and George will send you a log-on ID and Password for the Insight-Live Database. I can only send invitations to people who are already friends on this website as you are.

Comment by Joseph Fireborn on October 7, 2017 at 11:57am

Norm, I am finally getting around to mixing some of this glaze up. What is the fritted version recipe. I have the GB one. What are you substituting ratio wise? 

I think the fritted version looks a lot better than the GB version, plus I dont' like GB anyways.

Comment by Norm Stuart on January 21, 2016 at 3:16pm

For those without Gerstley Borate I've created a frit version of Orange Street. It seems to have slightly more flow without the iron oxide additions and perhaps be slightly darker and less orange.

.

This shows both versions of Orange Street applied over one layer of Glossy Base 2 with 10% zircopax, from (Mastering Cone 6 Glazes).  The Gerstley Borate version has a far higher LOI which may contribute to some mixing of the molten glaze the frit version doesn't experience.

Comment by Joseph Fireborn on January 21, 2016 at 3:09pm

Thanks for the detailed posting. I have been trying to find a nice dark matte that doesn't dinnerware mark badly. I have a few that come really close but I can't get it perfect in cone 6 ox. It's so difficult.

Comment by Norm Stuart on January 21, 2016 at 3:01pm

Joseph - I scraped a butter knife back and forth on the glaze with great force and created a slight silver tint.

But I had to arrange the tile in the sun so the scraped area was in the region of the greatest reflection for it to show up on the photo. For comparison, there are no cutlery scrapes to the left of the red line, where I held the tile with my thumb while scraping.

After cleaning the scrape marks with water and my thumb, it's not noticeable in real life. That area of the photo is still in the greatest area or reflection, so it's not comparable to the first photo. 

In front of me I can tell the Orange Street Glaze is much harder than the cutlery, and it's not damaged by the metal. It's merely the knife leaves behind metal scrapings, which wash off.  A very hard gloss glaze hardened with zircon will wipe-off more completely.  I don't see how a higher firing temperature would change this.

I will warn you this glaze looks unpredictably different on clays containing iron, so you need to reduce the amount of iron oxide if brown or red clay is your target use. Snap a test tile in half, particularly a tile with a glaze having less iron oxide, and you'll notice white clay binds a significant amount of iron from iron containing glazes.

Comment by Joseph Fireborn on January 21, 2016 at 2:30pm

The color of the mix on the right hand side. The Yellow and red iron is really nice and warm. Does that version cutlery mark? I really want a nice dark matte like that for some ideas I have.