Clay and Glaze Chemistry

5,590 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
   • 185 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
   • 5.6k views
   • 
   • C.Banks
   • January 14

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

   By Dick White, August 15, 2022
   • 44 replies
   • 3.1k 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
   • 7.1k 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. Which porcelain is your favorite for throwing large bowls

   By Barrie, 4 hours ago
   • 1 reply
   • 22 views
   • 
   • Mark C.
   • 2 hours ago

10. (Very basic questions) What are these pieces made of?

    By yoony22, Friday at 01:27 AM
    • 4 replies
    • 106 views
    • 
    • PeterH
    • 13 hours ago

11. Jug wants to drip??

    By Kate Reeves, Wednesday at 04:16 PM
    • 5 replies
    • 90 views
    • 
    • Kate Reeves
    • Yesterday at 09:36 AM

12. Fabulous deep turquoise green glaze for you to try...

    By Kate Reeves, Wednesday at 04:33 PM
    • 3 replies
    • 89 views
    • 
    • Kate Reeves
    • Yesterday at 09:32 AM

13. Wax/sticker resist

    By Smanalang, Friday at 08:45 PM
    • 1 reply
    • 39 views
    • 
    • Callie Beller Diesel
    • Friday at 09:42 PM

14. Observation on hard panning ingredients

    By davidh4976, Thursday at 08:13 PM
    • 4 replies
    • 52 views
    • 
    • Bill Kielb
    • Friday at 10:25 AM

15. Right glaze for BUFF clay from Continental Clay

    By Jordan1991, Tuesday at 03:05 AM
    • 4 replies
    • 70 views
    • 
    • Roberta12
    • Thursday at 11:25 PM

16. Stinky Mold in my clay & throwing water

    By rdroza, June 7   

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

      Tagged with:

      • moldy clay
      • mold in throwing water
      • mold in clay
      • recycled clay
      • stoneware clay
    • 14 replies
    • 184 views
    • 
    • Hulk
    • Wednesday at 09:10 PM

17. Best Amaco PC for dark brown cone 5 clay

    By Lbauer12, June 9
    • 8 replies
    • 95 views
    • 
    • Kelly in AK
    • Wednesday at 09:36 AM

18. Silicon Dioxide Powder

    By tonycarillo, June 10
    • 2 replies
    • 56 views
    • 
    • Jarman Porcelain
    • Tuesday at 11:14 PM

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

    By s6x, June 5
    • 4 replies
    • 134 views
    • 
    • Min
    • June 10

20. Pottery Ceramics Glaze color drastically changed with decal fire

    By JodRae, August 27, 2023
    • 5 replies
    • 516 views
    • 
    • s6x
    • June 9

21. Clay Manufacturers in Pacific Northwest

    By HenryBurlingame, June 8
    • 1 reply
    • 46 views
    • 
    • Min
    • June 8

22. lead glaze in Mexico

    By yoony22, June 8
    • 2 replies
    • 111 views
    • 
    • Hulk
    • June 8

23. Transparent glaze troubleshooting

    By Katarina, February 9   

    • transparent glaze
    • stoneware
    • (and 3 more)

      Tagged with:

      • transparent glaze
      • stoneware
      • pinholing
      • slip
      • slipware
    • 5 replies
    • 224 views
    • 
    • Min
    • June 5

24. All my glazes come out copper.

    By Maree, June 4
    • 2 replies
    • 96 views
    • 
    • Min
    • June 4

25. Porcelain mass with silicon carbide fired in oxidation atmosphere

    By Froufrouis, May 30
    • 8 replies
    • 181 views
    • 
    • Kelly in AK
    • June 3