Adding Self-Harening Clay To Bisque Fired Pieces

[nu2CAD]

Is it possible to sculpt on top of an already bisque fired (unglazed) piece with a self-hardening clay?

Would it bond to the surface?

[Mr. X]

Sure, it's possible. Is it desirable? Probably not :

 

 

http://www.sculpturehouse.com/self-hardening_clays_info.aspx

[nu2CAD]

Sure, it's possible. Is it desirable? Probably not :

 

 

http://www.sculpture...clays_info.aspx

 

 

Thanks!

I was curious about adding some clay texture layer, in small quantity to an already fired, non glazed piece.

[Chris Campbell]

If you can tell us why you want to do this we might be able to give you some

other ideas for it.

[nu2CAD]

If you can tell us why you want to do this we might be able to give you some

other ideas for it.

 

 

I made slip cast pots. After firing I realized there are sections I want to add texture to.

Could have added w/slip or glazes prior to firing but didn't.

I know there are cold glazes that can create rock/crackle textures but not quite what I want.

I'm looking to see if I can sculpt onto the pots with a like material.

[Rob Hendriks]

For textures on already fired pieces you can also use a vitreous slip.It can be added to biscuit ware or It can even be used on a (thin)glazed surface.You have to fire the work again.

[nu2CAD]

For textures on already fired pieces you can also use a vitreous slip.It can be added to biscuit ware or It can even be used on a (thin)glazed surface.You have to fire the work again.

 

 

Very interesting - thanks.

[nu2CAD]

For textures on already fired pieces you can also use a vitreous slip.It can be added to biscuit ware or It can even be used on a (thin)glazed surface.You have to fire the work again.

 

 

Very interesting - thanks.

 

 

Is there a specific vitreous slip product/brand or can I apply the slip used for casting?

[Chris Campbell]

My best advice would be to just make others and do the carving and texture on them.

You are probably going to waste a lot of time and effort on a less than happy result.

Learn and move on is my advice.

Cheers!

[Seasoned Warrior]

Like Chris, my personal philosophy is to chalk it up to experience and move on, of course that's just me. Everyone makes culls at one time or another and it should not be considered a mistake, it just was an unanticipated event. My excursions from desireability usually become grog. Perhaps you can do something else with the ones you've bisqued and add an interesting glaze design and they just become something else.

 

Best regards,

Charles

[Rob Hendriks]

To make a vitreous slip,you can use the slip for casting and ad an amount of a glaze frit(for example an alkali frit). Suppliers also sell relief pastes for textures.

[nu2CAD]

To make a vitreous slip,you can use the slip for casting and ad an amount of a glaze frit(for example an alkali frit). Suppliers also sell relief pastes for textures.

 

 

Thanks!

[nu2CAD]

Thanks to all those who have responded to my questions!

I have made quite a lot of my pots/vessels knowing I will sacrifice a few to experimentation.

It will be a good to test a pot or 2

=)

[Rob Hendriks]

Instead of using a vitrious slip(which will crack when applied to thick),you can also attach greenware particles to glazed or fired ware.Because they keep 'floating' on top of the glaze during firing they don't crack.Glaze will fix the particles to the piece .

[pottery chic]

Have you tried paper clay? If your a hand builder this may work for you.

[centered]

I have used paper clay on the inside and bottom of a bisque fired pot that had an S crack. It worked and you cannot even tell the crack was there!

[nu2CAD]

I have used paper clay on the inside and bottom of a bisque fired pot that had an S crack. It worked and you cannot even tell the crack was there!

 

 

The paper clay will adhere to bisque fired slip? Nice!

 

Thanks.

[nu2CAD]

Instead of using a vitrious slip(which will crack when applied to thick),you can also attach greenware particles to glazed or fired ware.Because they keep 'floating' on top of the glaze during firing they don't crack.Glaze will fix the particles to the piece .

 

 

Thanks!

[studiosentosa]

I have used paper clay on the inside and bottom of a bisque fired pot that had an S crack. It worked and you cannot even tell the crack was there!

 

 

 

Did you put it through another bisque fire before glazing? I have a large bowl that I handbuilt that cracked slightly on the edge inward about 2 inches. Not a wide crack. I was thinking about putting some paper clay and keeping it for myself. I didn't know if I needed to fire it again before the glaze firing.