Comment

Comment by juli long on March 19, 2014 at 7:57pm

Thanks Jeff and all others who contribute so much information on this board. I think I am like many who love working with clay: just want to soak up as much information as possible, and be informed even if I don't go that route, like crystalline glazes and ash glazes.  I love them, and knowing all the hard work that got a potter there makes me appreciate their hard work that much more!!!!!!

Comment by Jeff Poulter on March 19, 2014 at 3:43pm

What I have seen over on the CGF is that if you jump right in & start doing it, and then have questions, you will get a lot of help that way.  Also, the archives & older threads are filled with a lot of useful info.  You can do searches for a specific topic & see what has been discussed earlier.  The main problem with crystalline glazes is that they are even worse for traveling than other glazes.  You really do have to adjust & experiment even with a "known" recipe.  A few degrees either way in a kiln can completely kill or over-nucleate a tried & true recipe.  Even different batches of ingredients can mess you up completely.  You have to test, test, test.....  jhp

Comment by Jeff Poulter on March 19, 2014 at 3:28pm

There are people who incorporate moly into a regular macro-crystalline glaze as a colorant.  I  have not had much luck with that.  I have had more success using the formulas that are specifically designed for moly.  That being said, the above piece came from putting a moly glaze over an already fired macro-crystalline glaze.  The moly glaze was fired much lower, but we all know that macro-crystalline glazes are low-fire glazes that are fired up to ^10, hence all the run-off.  There was still run-off on the above pot, but not as much as with just macro-crystalline.  jhp

Comment by Lawrence Weathers on March 19, 2014 at 3:27pm

 To me they seem a little bit more than tight lipped on the crystal glaze forum. I made the social foo-pah of asking "how did you do that" about a pot I liked. I got thoroughly reamed for that from a couple of folks.  Haven't been back..

Comment by juli long on March 19, 2014 at 3:14pm

Is there a difference between moly crystalline and regular crystalline glaze? 

Comment by Jeff Poulter on March 19, 2014 at 1:47pm

Hi Juli,

     I am on the Crystalline Glaze forum and that is where I have picked up alot about these glazes, however, there is very little written about moly crystals.  There are a few that have it down, but they are very tight-lipped about what they do.  The above was actually a happy accident/experiment.  As of yet, I have not been able to reproduce it.  I have been trying to get other colors under the moly, but it is difficult as the moly glaze tends to be very hungry & eats through most everything..... but on I go.  jhp

Comment by juli long on March 19, 2014 at 1:33pm

Jeff, another wonderful vase, way to go!  Did you pick up a book to figure out how to understand the ins and outs of crystalline glazes or a workshop or how??

Comment by Lawrence Weathers on March 19, 2014 at 12:04pm

thanks.

Comment by Jeff Poulter on March 19, 2014 at 11:51am

Yes Lawrence,

     There are other pictures of it on my page.  It is hard to photograph as it is very iridescent.  It starts with a metallic underglaze, followed by a macro-crystalline glaze & then on top came the moly glaze, so it is a very involved process.  I am working to reduce the steps & still be consistent in results.  jhp

Comment by Lawrence Weathers on March 18, 2014 at 4:44pm

this is beautiful. What is this glazes. Do you have a better picture of it