Can I put a few strokes of stoneware slip on terra cotta?

[Nelly]

Dear All,

 

I am pretty sure I know the answer to this question but want to check. Can I put a few brush strokes of stone ware slip on say a terra cotta bowl that I will glaze with a low fire clear honey glaze.

 

My knowledge says, only put the same type of slip on the same kind of body. In otherwords, only put terra cotta slip on a terra cotta body.

 

But the experimenter in me wants to try.

 

Given that my clay is red and I was sort of hoping to use a white slip, do I need to invest in some white terra cotta or can I try some stone ware slip that I already have mixed up.

 

Know that it will be nothing more than a few stokes of white slip but I do not want my kiln ware blowing up during the firing. Could this happen or will it simply not adhere to leather dry clay??

 

Is this feasible or should I simply put this idea aside until I get the real McCoy (i.e., white terra cotta) to make my own slip?

 

Thank you in advance,

 

Nelly

[Chris Campbell]

Go ahead and play! Nothing worse than the slip falling off or cracking will happen. Try porcelain slip too ... Bright white does wonderful things on terra cotta.

 

Here is a link to the clay lessons area of my site ... look under "working with slips"

 

http://www.ccpottery.com/murrinis.html

[bciskepottery]

I use a cone 10 porecelain (Highwater's Helios) as a slip for cone 6 wares . . . no problems. I add mason stains and put a clear over the colored slips. I also use a white slip I make from scratch on all things from earthenware to cone 10 reduction . . . no problems.

[Nelly]

Go ahead and play! Nothing worse than the slip falling off or cracking will happen. Try porcelain slip too ... Bright white does wonderful things on terra cotta.

 

Here is a link to the clay lessons area of my site ... look under "working with slips"

 

http://www.ccpottery.com/murrinis.html

 

 

Dear Chris,

 

I have visited your site now. I must say your work is beautiful. Yes, experiment. I will do that. A few strokes will tell me something and as you say, even it if cracks or chips, there may be something in it that is exciting.

 

I remember years ago being shown how to put slip on top of glaze. The crackle was effective.

 

I will try and keep you all posted.

 

Thank you Chris.

 

Nelly

[Nelly]

I use a cone 10 porecelain (Highwater's Helios) as a slip for cone 6 wares . . . no problems. I add mason stains and put a clear over the colored slips. I also use a white slip I make from scratch on all things from earthenware to cone 10 reduction . . . no problems.

 

 

Dear Bciskepottery,

 

Thank you to you too. While I have no porcelain in my studio, I will give it a whirl to see what happens. If nothing else, I will learn yet another lesson.

 

Thank you again,

 

Nelly