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Min

Member Since 31 Mar 2010
Offline Last Active Today, 06:54 PM
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#67024 Cataloguing Glazes

Posted by Min on Today, 01:16 PM

If you have a scanner and want a visual record of test tiles without having to keep all of them then lay them flat on the glass and scan a whole page of them at once onto the computer. (snap off the base if you use L shaped ones and write glaze name with a sharpie on tiles)




#66953 An "office" Kiln

Posted by Min on Yesterday, 04:46 PM

Time to hand out some Darwin Awards.




#66811 My First Show!

Posted by Min on 28 September 2014 - 09:28 PM

Way to go Rebekah, sounds like you are off to a great start. 

 

Babs, you made me smile asking if a sponge keeper is for cake, glad you didn't question the tart warmer Rebekah sold.....




#66452 Which Do You Prefer For Joining Process?

Posted by Min on 21 September 2014 - 10:44 AM

If you have problems with joins then magic water alone or slip made with magic water or magic water slip made with paper pulp is worth a try. 

 

You are adding sodium (from the sodium silicate plus the soda ash) which is a strong flux which helps fuse the joins together. Also, the silica in the sodium silicate adds a titch more glass former to the join. Sodium silicate is also really sticky stuff which helps the joint bond plus slip made with it dries really hard. It also acts as a defloc and is water soluble so is able to work into the surrounding clay a bit. So in theory the bond is stronger while drying right through to the finished join having more melt and fusing better when fired.




#66394 Slip Trailing..which Tools Are Best?

Posted by Min on 19 September 2014 - 06:43 PM

One more type of trailer, a mylar cone from Charan Sachar

 

http://www.youtube.c...h?v=9czra-8DK94




#66204 Kiln Blankets?

Posted by Min on 15 September 2014 - 02:38 PM

Fiberfrax or Fiberfax is a silica & alumina material that comes in different densities as a blanket or in a more rigid board. It comes in different heat ratings up to 2600 I believe. It's not something you want to handle often as it's a class 2 carcinogen. It's often used between the kiln bricks and the metal jacket of electric kilns where there is less chance of the fibers getting airborne. It's also used inside raku kilns. There is a rigidizer you can brush or spray onto it to help keep the airborne fibers down. I wouldn't use it on the top of a kiln where you are lifting it on and off for every firing. 

 

msds for one brand is here: http://www.fiberfrax...-MSDS-M0114.pdf




#65925 Is This Blebbing?

Posted by Min on 10 September 2014 - 10:56 AM

Sounds like it's time for your friend to come and clean out your pugger. 




#65778 Container For Dip Glazing Plates

Posted by Min on 07 September 2014 - 09:36 PM

I posted this idea a couple weeks ago in another thread so apologies if you have already read it.

 

Staple removers with the prongs filed down to fit onto the rim of the plate on either side then you skim the plate or tile in a shallow amount of glaze horizontally. The prongs leave very small touch up areas.

 

 

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#65431 Honey/amber Translucent /transparent Cone 6 Glaze

Posted by Min on 31 August 2014 - 08:35 PM

Yup, 3195 is high in boron and calcium. I got rid of the bentonite in the altered version below, there is 25% EPK in it now so I don't think you will need the bentonite. Chemistry is fairly close, I included the unity formula, expansion figures etc so you can compare the two. I think it looks okay on paper but you have to try it on a test piece to be sure.

 

new version with no 3195
=========================================

EP Kaolin................... 25.10
Silica...................... 22.80
3134........................ 20.90
Australian Spodumene........ 12.80
Dolomite.................... 13.10
Nepheline Syenite........... 5.30
=Manganese Dioxide .......... 3.00
=Iron Oxide Red.............. 2.00
=========
105.00

CaO 0.44* 8.73 9.98
Li2O 0.10* 1.03 2.22
MgO 0.21* 3.06 4.86
K2O 0.01* 0.36 0.24
Na2O 0.13* 2.85 2.95
P2O5 0.00* 0.09 0.04
TiO2 0.00 0.10 0.08
Al2O3 0.41 14.78 9.29
B2O3 0.21 5.09 4.69
SiO2 2.76 58.52 62.42
Fe2O3 0.04 2.22 0.89
MnO 0.00* 0.00 0.00
MnO2 0.10* 3.16 2.33

Cost: 0.24
Calculated LOI: 9.64
Imposed LOI:
Si:Al: 6.72
SiB:Al: 7.22
Thermal Expansion: 6.25
Formula Weight: 283.24

 

Original version with 3195
=========================================

EP Kaolin................... 14.00
Silica...................... 23.00
Frit 3195................... 16.60
Bentolite L................. 2.00
3134........................ 4.80
Australian Spodumene........ 15.00
Dolomite.................... 15.00
Nepheline Syenite........... 10.00
Manganese Dioxide .......... 3.00
Iron Oxide Red.............. 2.00
=========
105.40

CaO 0.40* 7.87 8.95
Li2O 0.11* 1.20 2.56
MgO 0.25* 3.51 5.56
K2O 0.02* 0.55 0.37
Na2O 0.12* 2.61 2.69
P2O5 0.00* 0.06 0.03
TiO2 0.00 0.06 0.05
Al2O3 0.40 14.50 9.07
B2O3 0.21 5.14 4.71
SiO2 2.80 59.24 62.87
Fe2O3 0.04 2.13 0.85
MnO 0.00* 0.00 0.00
MnO2 0.10* 3.13 2.30

Cost: 0.22
Calculated LOI: 9.08
Imposed LOI:
Si:Al: 6.94
SiB:Al: 7.45
Thermal Expansion: 6.11
Formula Weight: 284.07




#65410 Honey/amber Translucent /transparent Cone 6 Glaze

Posted by Min on 31 August 2014 - 01:31 PM

Babs,

 

I noticed in your other post that you are looking for an Oz equivalent for 3195, do you want me to redo my recipe to get rid of the 3195? 




#65306 Wood Fired Kilns

Posted by Min on 28 August 2014 - 02:21 PM

Over on clayart there was a post about wood fired kilns from around the world. Pinterest page from David Voorhees. Some serious kiln envy here, my little electric is feeling very inadequate.   <_<

 

https://www.pinteres...ound-the-world/




#65242 Making Glaze Tongs

Posted by Min on 27 August 2014 - 04:41 PM

Don't know the shape of the pot you need tongs for but for shallow things like lids and tiles that you dip more on a horizontal plane plus little itsy bitsy stuff I use filed down staple removers. They are cheap and they work, I just filed down the prongs so they fit on the rims / edges.

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#65153 Honey/amber Translucent /transparent Cone 6 Glaze

Posted by Min on 26 August 2014 - 06:27 PM

 This kind of colour? This is over porcelain, lowish expansion of 6.11

 

 

EP Kaolin                    14.00
Silica                           23.00
Frit 3195                     16.60
Bentolite L                    2.00
3134                            4.80
Australian Spodumene 15.00
Dolomite                      15.00
Nepheline Syenite        10.00
Manganese Dioxide       3.00
Iron Oxide Red               2.00

 

    total:                        105.40

 

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#65130 How Would You Describe Your Current Studio Location. Suburban Garage, Urban B...

Posted by Min on 26 August 2014 - 01:53 PM

Basement workshop with kilns (2) in covered and enclosed deck in the back. 1 kiln is a 10 cubic' front loader, the other a small top loader that i use mostly for tests, I fire to ^6/7 Only problem with having a home workshop is my "mess" seems to take over the house. Have taken over 3 bedrooms now, 2 for storage and 1 for packing.




#64454 Slip Trailing - Silly Post

Posted by Min on 14 August 2014 - 04:00 PM

So, I had to make some cookies for a wedding shower this weekend. Turns out you can use slip trailing for other things.  :blink:  

 

 

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