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Babs

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Everything posted by Babs

  1. Thanks. The purged clay dark cores I am referring to is a commercial clay. And one batch of this when dry had the rubbery strands which made me think a product had been added which was not bentonite or ball clay... I am aware of the light Bentonite, curt filled me in in that.
  2. Babs

    cadmium red

    Yeh avoid it. I have a drinking vessel by a Scottish potter , purchased at Harrods, bright red inner, beautiful unglazed outer. I don'tdrink from it but I think the comments at the time was that the red had been introduced in an encapsulated form. I'll try to find it.
  3. Thanks glaze Nerd, certainly is logical. The stuff I found in the dried out clay was stretchy and 'rubbery strands. What are the plasticisers used for grout etc by builders. My current terracotta clay co as with a central core running through the purged clay of a darker colour than the outer clay. Bentonite??? Rich clay? Thanks for keeping it succinc!
  4. Well go for it glazenerd, I can skim read pretty well :-))))) but interested in the logic. I once had a batch of clay which totally dried out and on smashing it to reconnstitue I found strands of stuff a but like dried latex.
  5. Are these glazes? 80% titanium dioxide TiO2 seems overkill for slip or glaze Tin oxide SnO2 around 10% is about norm for a glaze and as written above can be sub stituted by other opacifyers unless you're looking for other attributes that TiO2 brings to the glaze. Zirconium will introduce a whiteness also.. Still not sure where you're going with this. Folk use white slips on red clay and use clay bodies possibly deflocculated . A lot has been written in these forums about this
  6. Reading hamer and hamer last night, reclaiming clay here..bentonite a lubricant for sure and increases plasticity But not workability! Well I was reading this as some of my reclaimed clay lacked strength, my description, ok for thick walled thrown pots but didn't hold up to my usual thickness of thrown pots. What would a better plasticiser be? And would this poster's problem be similar?
  7. I think the question is unanswerable unless the required result and what it'sbeing added to ....chicken soup???..Is clarified. With Neil on cost. Xx
  8. Babs

    avataroriental

    Stunningly beauriful
  9. Babs

    Glaze Defect

    If the defect is the blog of matting glaze to the left think it is a stirring the glaze properly defect. I'm assuming the all over texture is meant.... Are you dipping or brushing ?g
  10. Sure , agree with Neil totally. Look at some firing schedules posted in these forums.
  11. How many segments can you program? Many potters would have a more gentle 1st segment. Then 100C/hr to 600 Then 150 C poss to close to final temp Then a slow down to final temp. And a soak. That would be a glaze firing schedule which would be altered according to contents of kiln....
  12. Babs

    Effects of iron chromate

    Yup it goes along with barytes sp.
  13. Cleaning shed before a new lot of work and rationalizing space. Container of iron chromate. Ok testtesttest they say! What colour or variation to expect if added to opaque glaze in oxidation C6
  14. Also that pic of mold shows a slight groove at that dicky transition which could be a contributing factor also. It's Not the smoothest mold I have seen.
  15. Well maybe a bit less jiggering and a bit more jollying:-// When working my C6 clay I can get away with being a bit less subtle when rolling and pressing. My terra cotta needs handling with care aka shortcrust pastry as opposed to pizza dough. So rolling and pressing into forms requires more gentle rolling and easing into shape more carefully or the clay WILL crack . Longer all over drying too.
  16. Babs

    Effects of iron chromate

    Well I guess I will ditch this figuratively speaking of course. Thanks LT
  17. Babs

    Glaze Safety Questions

    Get him onto the carport , table from second hand store etc Clothes rinsed off in yard Cheap sacrifice for his and your health. Clay etc down household drains disastrous outcomes. That's the tip of the iceberg. A few posters re silicosis of lungs in his bedroom might help....
  18. If only J Baymore was here! Could also be sangha like!
  19. Maybe red clay for sanga Albany slip?? Sanga caves phillipines
  20. Well I understand the sentiments expressed by all. Is it pride, ego or what at play? Any pot made by the potter is a minute spec on her/his path. So you are not happy with that spec and you move on.... You value the spec , sell it You're not happy with it does it matter if some else uses it. Today one only has to Google the potter and you can see the pots of the potter and what ones the potter is happy selling. So what is at play? My cupboard is full of mug seconds . Friends ask why that one is a second and I fill them in. We all drink our tea happily. My cupboard fills. Least used. .op shop. Or fence post. We all like finding treasures
  21. Can get them over the counter in art supply shops in Aust. I find not all they're cut out to be and making your own may be better imo. I shortened the "nib" hairs and that seemed better.
  22. Yeh, not happy with it toss it. I put a number of them on fence posts on the roads around here and they vanish. Planet too depleted to smash stuff which some else had use for. I do put such. In some and donate to street stalls for various charities. I made a commemorative book ,2 actually, not happy with one I contacted the client and told her to find another potter. She did. So months later I dropped off her pot details, my stencils And the cracked book. Never do this. She then cancelled her order with other potter and she displays my flawed pot in her guesthouse, all for free And to my distaste.
  23. Babs

    firing schedule

    I guess it depends. On temp you're happy to take kiln to. The type of clay it is made of. How thick how big . How dry If a simple pot/ sculpture pot you could bisque to 1000deg C or a bit higher Assuming dry as a bonecould dry in low oven overnight door open low heat. 50degc /hr to 150degC 100degC/he to 700degC Then 150 to top temp say1020degC If thick and heavy slow the first ramp and consider placing piece on fine grog . Good luck. If your kiln doesn' do that temp could get away with something in 900s .The clay may eventually wear away like terracotta plant pots. Is she painting it?
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