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Sputty

Member Since 23 Apr 2016
Offline Last Active Today, 09:48 AM
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Posts I've Made

In Topic: Colemanite

20 March 2017 - 09:18 AM


You could melt a load into your own frit  B)

 

Don't think I haven't thought of it! If I had access to a ball mill, I'd be giving it a go!

I fancy something like these guys use to grind bottle glass down to a (sort of) frit:

 

 

(Jump to 18:45 for the hard-core ball-milling action...)


In Topic: Colemanite

20 March 2017 - 08:10 AM

@Mark C. - Thanks - I'd be only too happy to use frits, to be honest, if I could get the ones I wanted! I've used frits a lot with earthenware glazes, and am very happy to get them working properly. The real problem in the backwaters of Europe is availability - here in France there is only a small range to choose from, and inevitably not what you are looking for at the time. Hence the question about colemanite, which I can get, and which I would substitute for the more reliable (British) calcium borate frit I am about to run out of.

 

@Marcia Selsor - Thanks - Gerstley Borate is no more available in my bit of Europe than half the frits I'd like to use!

 

@Neil Estrick - Thanks - (see my response to Mark C) - I'm good with frits, if only I can get them!

 

@Glazenerd - Thanks for the link to that thread - I must learn to do a (proper) search on these forums as a first step.

 

As it happens, overnight I've just tested a glaze (for porcelain, ivory, silky smooth satin) which I didn't think would work as I wanted, but lo, it did. And it has no colemanite, calcium borate, ghastly borate or any other difficult thing in it. That's what I call a win-win situation!

I expected it to craze, it defied me - I don't mind being wrong!

 

Thanks again to all.


In Topic: Can You Make A Plaster Mold Of Glass?

18 March 2017 - 08:41 AM

 

Isn't oil clay just called Plasticine?

 

 

I think Plasticine might be considered to be an oil clay, but oil clay is not necessarily Plasticine (as we know it from our extended childhoods).

The 'serious' stuff is a bit more refined, I think. But I might be wrong; it has been known.

 

NSP Professional Oil Based Clay


In Topic: Can You Make A Plaster Mold Of Glass?

18 March 2017 - 03:29 AM

Ann - that is a very useful table! Thanks for reproducing it here.

Have you ever seen a source for oil clay in the UK (or elsewhere in Europe)?

(I admit to not looking very hard, and also to being lazy...)

 

 

EDIT: -------------------------------------------------------

 

To answer my own question, pottery suppliers are not the place to look; art suppliers are. Found loads of sources, most of whom deal with sculpture rather than ceramics per se.

 

See. Not so lazy after all.


In Topic: Seeley Olivia Kiln? Who Made It?

16 March 2017 - 11:17 AM

You see, this forum is magic, isn't it? You ask a question, and less than an hour later the answer arrives. It doesn't even need the intervention of another forum member!

 

Good luck with the element transplant!