cambriapottery Posted May 7, 2011 Report Share Posted May 7, 2011 have become interested in producing some texture on surface of pots using crackle slip. I need a starting point to jump off from so anyone have some suggestions about recipes and applications? Link to comment Share on other sites More sharing options...
Chris Campbell Posted May 7, 2011 Report Share Posted May 7, 2011 How are you planning on firing them? What temp? What type of kiln? You also have options of crackle glazes and lichen type glazes. Link to comment Share on other sites More sharing options...
Natas Setiabudhi Posted May 9, 2011 Report Share Posted May 9, 2011 correct me if i was wrong. i think crackle is terminology in glazes not slip. crackle or crazing may be define as glazes who tendency to craze is used for decorative effect. Link to comment Share on other sites More sharing options...
Chris Campbell Posted May 9, 2011 Report Share Posted May 9, 2011 Not wrong ... but the effect can be produced in more ways than just glazes. Some people are now using slips to get crackle effects in raku firings. The slip falls off and you are left with black crackles on the white clay body. You can also use some wax resists to get a crackle type effect ... as it shrinks it leaves channels for color application. Link to comment Share on other sites More sharing options...
cambriapottery Posted May 9, 2011 Author Report Share Posted May 9, 2011 How are you planning on firing them? What temp? What type of kiln? You also have options of crackle glazes and lichen type glazes. If you have a copy of 500 pitchers there are two examples of the surfaces I would like to begin with. John Arnold Taylor`s jug has a description that he uses slips stains and oxides as well as glaze. But I think he starts with the crackle slip on greenware or bisque for the initial texture. In the same book there is a piece from Dan Anderson which seems to be fired much lower. I am firing electric in cone 6, 7, 8 range. Sometimes I have possibility to fire with wood at a higher temperature cone 10ish. Application is my question and consistency and recipes for the slip(s). Link to comment Share on other sites More sharing options...
Chris Campbell Posted May 10, 2011 Report Share Posted May 10, 2011 Sorry, I don't have that book. If you can post images it would help. There are just too many ways of doing crackle to be able to guess what was done. Link to comment Share on other sites More sharing options...
LawPots Posted May 12, 2011 Report Share Posted May 12, 2011 I have a similar question; is the surface on the pots like these? http://www.rob-barnard.com/whiteware/rb_whitewareList.php?image=rb_whiteBowls1_pop Link to comment Share on other sites More sharing options...
Marcia Selsor Posted May 12, 2011 Report Share Posted May 12, 2011 I have worked with crawling glazes which can be made with additions of magnesium carbonate. The amount directly affects the texture and patterns. Maybe you should see what happens by adding Magnesium to the slips? Marcia Link to comment Share on other sites More sharing options...
cambriapottery Posted May 12, 2011 Author Report Share Posted May 12, 2011 I have a similar question; is the surface on the pots like these? http://www.rob-barna...whiteBowls1_pop It has some resemblance. Here is the site for John Arnold Taylor which shows the somewhat more subdued surface he is using. http://www.johnarnoldtaylor.com/Gallery.asp?GalleryID=62296&AKey=4J924LSX But the bowls you have shown are interesting. Thanks any more info you have collected? I have been reading what can promote crackle surface from Robin Hopper`s books and including reticulated glazes and black slips (underneath the glaze). Also very interesting. John Brit also has crackle slip in his publication on high fire glazes (page 62). Link to comment Share on other sites More sharing options...
cambriapottery Posted May 12, 2011 Author Report Share Posted May 12, 2011 I have worked with crawling glazes which can be made with additions of magnesium carbonate. The amount directly affects the texture and patterns. Maybe you should see what happens by adding Magnesium to the slips? Marcia Yes thanks for this post Marcia. I plan to try this suggestion. Link to comment Share on other sites More sharing options...
cambriapottery Posted May 12, 2011 Author Report Share Posted May 12, 2011 Sorry, I don't have that book. If you can post images it would help. There are just too many ways of doing crackle to be able to guess what was done. To show an image from John II can only direct you to his webpage. It is used on his tableware and especially on the cups and jugs. http://www.johnarnoldtaylor.com/Gallery.asp?GalleryID=62296&AKey=4J924LSX Link to comment Share on other sites More sharing options...
LawPots Posted May 13, 2011 Report Share Posted May 13, 2011 I have a similar question; is the surface on the pots like these? http://www.rob-barna...whiteBowls1_pop It has some resemblance. Here is the site for John Arnold Taylor which shows the somewhat more subdued surface he is using. http://www.johnarnoldtaylor.com/Gallery.asp?GalleryID=62296&AKey=4J924LSX But the bowls you have shown are interesting. Thanks any more info you have collected? I have been reading what can promote crackle surface from Robin Hopper`s books and including reticulated glazes and black slips (underneath the glaze). Also very interesting. John Brit also has crackle slip in his publication on high fire glazes (page 62). I'm pretty much a beginner. My teacher recommended that I try firing to bisque twice, with slip applied after the first firing. It should cause the slip to shrink over the already partially vitrified clay and therefore crackle. It might also leap off the pot or flake off. I've not tried it yet. In theory, mismatched clay body to a slip which shrinks more than the body should do that as well. Really only one way to find out . . . try something and see. Link to comment Share on other sites More sharing options...
cambriapottery Posted May 14, 2011 Author Report Share Posted May 14, 2011 I have a similar question; is the surface on the pots like these? http://www.rob-barna...whiteBowls1_pop It has some resemblance. Here is the site for John Arnold Taylor which shows the somewhat more subdued surface he is using. http://www.johnarnol...6&AKey=4J924LSX But the bowls you have shown are interesting. Thanks any more info you have collected? I have been reading what can promote crackle surface from Robin Hopper`s books and including reticulated glazes and black slips (underneath the glaze). Also very interesting. John Brit also has crackle slip in his publication on high fire glazes (page 62). I'm pretty much a beginner. My teacher recommended that I try firing to bisque twice, with slip applied after the first firing. It should cause the slip to shrink over the already partially vitrified clay and therefore crackle. It might also leap off the pot or flake off. I've not tried it yet. In theory, mismatched clay body to a slip which shrinks more than the body should do that as well. Really only one way to find out . . . try something and see. Thanks Lawpots. I am going to try some of the different possibilities asap it all takes time. Please let me know if you discover anything along your path. Did you produce those bowls pictured? Link to comment Share on other sites More sharing options...
Miaa Posted June 7, 2019 Report Share Posted June 7, 2019 Where is the “ Recepie” for crackle slip cone 6 Link to comment Share on other sites More sharing options...
liambesaw Posted June 7, 2019 Report Share Posted June 7, 2019 John Britt has it in his glaze books, there are recipes on CAD as well. Quick Google search oughtta bring it up Link to comment Share on other sites More sharing options...
oldlady Posted June 8, 2019 Report Share Posted June 8, 2019 there is a well documented technique using sodium silicate to coat a freshly slipped pot, waiting for the ss to dry and then stretching the pot from the interior. this results in cracks over the entire pot. did not see the above mentioned photos so i may not be talking about the method used there. Link to comment Share on other sites More sharing options...
Kilngod ceramics Posted June 13, 2019 Report Share Posted June 13, 2019 Hi please can someone help me with crackle slip on bisque stoneware fired in electric kiln to temp 1280. I have tried the recipe given in the book Ash Glazes by Phi Rogers can someone help me . I am stuck .the recipe hasn't worked . Link to comment Share on other sites More sharing options...
neilestrick Posted June 15, 2019 Report Share Posted June 15, 2019 On 6/13/2019 at 2:43 PM, Kilngod ceramics said: Hi please can someone help me with crackle slip on bisque stoneware fired in electric kiln to temp 1280. I have tried the recipe given in the book Ash Glazes by Phi Rogers can someone help me . I am stuck .the recipe hasn't worked . If you've already fired the piece to 1280, it's likely already vitrified, and you'll have a really hard tome getting anything to stick to it. Typically we bisque to cone 06-04 so the piece is still porous for applying the glaze. Link to comment Share on other sites More sharing options...
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