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ayjay

Member Since 05 Nov 2011
Offline Last Active Today, 03:41 AM
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Topics I've Started

Stubborn Ideas.

13 November 2014 - 11:52 AM

I've had the best part of a glaze kiln load ready for glazing for a couple of weeks now.

 

I needed to fill one more shelf and made nearly enough pots to do that,  (and then made three large mugs to actually fill the shelf).

 

Having most of a kiln load ready for glazing meant that unlike normal, I know exactly how everything is going to be glazed - it's even all written down.

 

The only things not decided are the three large mugs.

 

I had one idea of a glaze combination and then rejected it, (it would have looked fine, and I'll use it another time, but it wasn't what I wanted),  every time I now try and think of an alternative all that will come into my head is the original idea.

 

How do you get a good idea out of your head when you're looking for a better one?  :unsure:

 

 

 

 

 

 

 

 

 


Crawl Glaze

13 November 2014 - 11:25 AM

Crawl glaze, sometimes known as a Lichen or a reticulated glaze.

 

I've used these now and again, it's always been a small area that I've used it on and so I mix it to be quite thick and apply by brush.

 

I'd now like to use it on a larger piece, (all around the rim of a platter) and would prefer to spray it on. 

 

Will it be OK to make it the normal consistency that I'd usually use for spraying?

 

Is there a best way to spray to achieve a heavy coat of a crawl glaze?

 

Should I just keep spraying until it looks right?

 

Should I spray two, or even three coats?  If I did that should I allow it to dry in between coats?

 

Not sure if that's a good idea,as it does begin to crawl as it dries out and any further coats will fill the interstices .

 

.................or should I just treat it as a normal glaze and aim for one sprayed coat of a normal thickness?


Blistering

08 October 2014 - 11:00 AM

This bowl below has an ash glaze on it, I may have sprayed it on too thick, not sure, it didn't blister when I tested it in a previous firing. Nothing else in the kiln was blistered. 

 

On one item I used the same glaze around the rim and it's fine so I don't think it was fired too fast, but maybe it was too fast for this glaze at thickness.

 

Any suggestions for a future cure is what I'm looking for, I want to keep the runs but lose the blisters (if anything can be done with this bowl it may be worth a try, but I'm not expecting much in that respect).

 

 

 

Glaze is Val Cushing G4 Ash :- 

 

Washed ash (pine) - 50

Ger.Bor -       -   - -  -20   (I subbed Standard Borax Frit)

Whiting   -  - - - - - - 12

China Clay - - - - - -  8

Flint -  - - -  - - - -- - 10

Cob. Carb  - - - - - -  1

Cop Carb. -- -   -- - -6

 

Sprayed over a light coat of Strontium CM Warm and also a Pearly white glaze just to the central area.

 

Electric ^6 @100°C p/h <1100°C -  @ 75°C p/h <1210°C and a 15 minute hold. Natural cool down.

 

 

ash_bowl_zps9cfd2792.jpg

 


Cataloguing Glazes

27 September 2014 - 05:25 AM

I keep glaze recipes in a small notebook, I started it off by using one page for a recipe and leaving the facing page blank for notes on tests etc.. With not too many glazes in the book it worked fine, however I've continually added to it and also started adding other notes from the back regarding stains, oxides, chemical substitutes etc. etc..

 

It's getting a bit messy and searching through the book takes forever now, mainly cos I can't  resist reading all the wrong stuff on the way.

 

I decided that a card index system would be the way forward and have a blank one to start on.

 

What I cant work out is how to catalogue the glazes, alphabetical order seems obvious but often the colour of a glaze isn't reflected in the name.  I have recipes that I've never used and some that I maybe never will, but I jot down what interests me at the time and would like to be able to find them easily in the future.

 

I'm thinking I'll have to have some sort of index which groups glazes of different colours and their names and then keep the named glaze in alphabetical order, but it feels clunky before I even start.

 

Do you catalogue your glazes, and how?

 

 


A Change Of Direction

24 July 2014 - 04:04 AM

Sounds exciting doesn't it?    But it's just one pot. :D

 

I have a small lidded pot which is at the bone dry greenware stage.

 

The wife wants a pomander for her wardrobe.

 

I suggested that I could make holes around the top half of this pot and in the lid.

 

(I'm going to make a couple anyway, but don't particularly like this little pot and tucked away in a wardrobe is the best place for it).

 

I'm planning on using a cordless drill and a 2mm HSS  twist bit.

 

Will this work OK with dry greenware or would I be better off to re-wet the piece to some extent?