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VC #71, or a nice satin base ?


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#1 clay lover

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Posted 22 April 2012 - 11:12 AM

I am looking for a dependable base glaze, cone 6, that has a satin surface, nice to handle and food safe. I came across Val Cushing 71 in a book, but don't remember where I found it. Do any of you use this and do you have a good satin base that is receptive to oxides, that I might try?

I have looked up and mixed a lot of other glazes, but this is my first time to start with a base and add colorants to get what I want.

Custer spar 40
frit 3124 9
whiting 16
talc 9
epk 10
flint 16

Thanks, all.

#2 Marcia Selsor

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Posted 22 April 2012 - 03:54 PM


This is a nice satin gloss clear that works well with stains at ^6. Hotter and it goes glossy.

Sue Hintz Clear 6^ reworked by Ron Roy back in late 90s.


Cornwall Stone 33.5

G200 22
Whiting 18
Gerstley Borate 10
EPKaolin 5.5
Silica 11
Bentonite 2


Marcia

#3 jd53

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Posted 22 April 2012 - 07:55 PM

i too want to try VC 71 base, ....soon

presently i am working with john posts ( Post's calcium matte 7 )

first tests are looking good

http://www.johnpost....pes/CALMATT.TXT

http://www.johnpost.... Tiles/038.html

#4 clay lover

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Posted 22 April 2012 - 08:58 PM

JD, pics look good. What does it FEEL like? The little test of VC 71 I've done with no colorants is silky, makes you want to touch it, and a bit translucent, but that might be from the lacl of colorants/ Maybe?

#5 esh

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Posted 23 April 2012 - 10:56 AM

JD, pics look good. What does it FEEL like? The little test of VC 71 I've done with no colorants is silky, makes you want to touch it, and a bit translucent, but that might be from the lacl of colorants/ Maybe?


Colorants rarely affect the glaze' texture. If you like your base glaze - just start to perform some tests using different colorants / quantities. Enjoy!

#6 Aodenkou

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Posted 29 September 2014 - 07:21 AM

I was going to try VC71 and I put it into an Excel worksheet so I could get different batch sizes and noticed that it totals 91 not 100.  Does anyone know if this is correct at written or are there ingredients missing?  If so could you please share? 

 

Thanks in advance!



#7 Biglou13

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Posted 29 September 2014 - 07:38 AM

I have tests of VC 71 waiting to dry..... I have 3 variants with colorants waiting to fire. ....... Duh I did not test base glaze without colorants.......

It adds up to 100. I'll check book later
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The beige is blinding!!!!!!
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#8 Biglou13

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Posted 29 September 2014 - 08:09 AM

Aodenkou. Check your math....above recipe is 100
Caution big brother is watching.
The beige is blinding!!!!!!
The middle of the road is boring

The true sign of intelligence is not knowledge but imagination.
-Albert Einstein

#9 ayjay

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Posted 29 September 2014 - 02:52 PM

I was going to try VC71 and I put it into an Excel worksheet so I could get different batch sizes and noticed that it totals 91 not 100.  Does anyone know if this is correct at written or are there ingredients missing?  If so could you please share? 

 

Thanks in advance!

You either missed out  Talc: 9.0   or Frit 3124: 9.0 , or your maths needs some work. ;)



#10 Biglou13

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Posted 29 September 2014 - 03:29 PM

Ok. I've already made a amount of this glaze..... As my research on it continues . Others on the net say this glaze is not mature and most likey under fired. Which points in the direction of leaching and unsafe for food use. There are updates/ revisons on this In original form VC 71 is Xavier's jade green with colorants. Revised versions have the formula changed..... I'm told for the safer
Caution big brother is watching.
The beige is blinding!!!!!!
The middle of the road is boring

The true sign of intelligence is not knowledge but imagination.
-Albert Einstein

#11 oldlady

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Posted 29 September 2014 - 05:41 PM

try this

  

Wettlaufer 18  cone 6 oxidation (electric kiln)

 

C-6 spar  (soda spar)              40

                 i used Kona

whiting                                     15

Ball clay (C&C for whiteness)  20

silica 325                                  15

dolomite                                   10                                                                                                                                                    total                    100

add 2 % bentonite

 

this is a great glaze, i have tested colors under it and it does not contain zinc so green stays green.  used on my little loafers white clay it gives a soft, velvety bright white look.  it is described in the book as "waxy" which is something i do not understand.  i have used Stroke N Coat colors on top of this glaze  and the contrast of the velvety white with the shiny colors adds something special.                   


"putting you down does not raise me up."

#12 Aodenkou

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Posted 29 September 2014 - 11:51 PM

I was going to try VC71 and I put it into an Excel worksheet so I could get different batch sizes and noticed that it totals 91 not 100.  Does anyone know if this is correct at written or are there ingredients missing?  If so could you please share? 
 
Thanks in advance!

You either missed out  Talc: 9.0   or Frit 3124: 9.0 , or your maths needs some work. ;)

You are 100% correct! I did leave out the Talc. My math skills are poor so I do rely on Excel BUT it looks as if I need to proof my typing as well!




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