Clay and Glaze Chemistry

5,581 topics in this forum

1. Frit Substitution Chart + Orton Cone Charts + Kiln Wash Recipes

   By Min, October 15, 2019
   • 21 replies
   • 13.9k views
   • 
   • olaff40
   • May 23

2. Potash Feldspar comparisons of Custer, Mahavir, G200EU and Vardhman

   By Min, May 3
   • 0 replies
   • 150 views
   • 
   • Min
   • May 3

3. Wild Clay Processing

   By Min, November 5, 2022   

   • found clay
   • foraged clay
   • (and 2 more)

     Tagged with:

     • found clay
     • foraged clay
     • dug clay
     • testing wild clay
   • 21 replies
   • 2k views
   • 
   • Pluton
   • January 26

4. Eutectics Calculator 1 2

   By Min, May 12, 2021
   • 42 replies
   • 5.5k views
   • 
   • C.Banks
   • January 14

5. Custer feldspar... again... new chemistry 2021 data 1 2

   By Dick White, August 15, 2022
   • 44 replies
   • 3k views
   • 
   • GEP
   • January 3

6. Talc shortage? New Talc - Cim Talc and Fabi Talc 1 2

   By Susan McHenry, April 28, 2021   

   • talc
   • cim talc fabi talc
   • 28 replies
   • 7k views
   • 
   • Dick White
   • October 22, 2023

7. Spodumene Substitute Analysis

   By Min, April 1, 2023
   • 11 replies
   • 1.3k views
   • 
   • PeterH
   • July 10, 2023

8. User Beware + Technical FAQ's

   By Guest JBaymore, February 22, 2014
   • 4 replies
   • 26.9k views
   • 
   • oldlady
   • December 27, 2019

9. Clay Manufacturers in Pacific Northwest

   By HenryBurlingame, 2 hours ago
   • 0 replies
   • 6 views
   • 
   • HenryBurlingame
   • 2 hours ago

10. Stinky Mold in my clay & throwing water

    By rdroza, 23 hours ago   

    • moldy clay
    • mold in throwing water
    • (and 3 more)

      Tagged with:

      • moldy clay
      • mold in throwing water
      • mold in clay
      • recycled clay
      • stoneware clay
    • 6 replies
    • 50 views
    • 
    • Callie Beller Diesel
    • 6 hours ago

11. How to tell if the glaze my studio is using is lead free

    By yoony22, 7 hours ago
    • 0 replies
    • 16 views
    • 
    • yoony22
    • 7 hours ago

12. correcting glaze that fired glossy instead of matte....

    By s6x, Wednesday at 01:33 PM
    • 2 replies
    • 70 views
    • 
    • Kelly in AK
    • Thursday at 09:26 AM

13. Transparent glaze troubleshooting

    By Katarina, February 9   

    • transparent glaze
    • stoneware
    • (and 3 more)

      Tagged with:

      • transparent glaze
      • stoneware
      • pinholing
      • slip
      • slipware
    • 5 replies
    • 204 views
    • 
    • Min
    • Wednesday at 08:41 PM

14. All my glazes come out copper.

    By Maree, Tuesday at 06:33 AM
    • 2 replies
    • 71 views
    • 
    • Min
    • Tuesday at 01:54 PM

15. Porcelain mass with silicon carbide fired in oxidation atmosphere

    By Froufrouis, May 30
    • 8 replies
    • 153 views
    • 
    • Kelly in AK
    • Monday at 11:51 PM

16. Modifying white glaze

    By Discus, May 31
    • 9 replies
    • 114 views
    • 
    • Discus
    • Sunday at 12:23 PM

17. Magnetic Clay

    By Kelly in AK, May 14
    • 7 replies
    • 145 views
    • 
    • Kelly in AK
    • June 1

18. Observation on converting glazes...Bentonite needed

    By davidh4976, May 21
    • 12 replies
    • 180 views
    • 
    • Callie Beller Diesel
    • May 31

19. Question on Tichane's "Celedon Blues" 5-3-2 recipe

    By Mudfish1, May 27
    • 5 replies
    • 101 views
    • 
    • Mudfish1
    • May 30

20. Wood ash glaze conundrum

    By Sam D, May 22
    • 15 replies
    • 304 views
    • 
    • Sam D
    • May 29

21. Waterfall brown glaze pinholing (recipe from mastering cone 6 glazes Hasselberth)

    By Blowing Rock Pottery, May 26
    • 9 replies
    • 164 views
    • 
    • Min
    • May 28

22. Gold Lustre

    By Imu, April 15
    • 6 replies
    • 203 views
    • 
    • Min
    • May 27

23. questions about UMF

    By elenab, May 21
    • 20 replies
    • 257 views
    • 
    • Hulk
    • May 27

24. how to use my logo stamp with underglaze

    By Ingida, May 24
    • 5 replies
    • 91 views
    • 
    • Bill Kielb
    • May 25

25. Why is my clay bloating?

    By LindsayM, May 18
    • 15 replies
    • 205 views
    • 
    • PeterH
    • May 23