Clay and Glaze Chemistry

5,577 topics in this forum

1. Kona F-4 to minspar 200 feldspar substitution

   By GlazeGus, May 18
   • 5 replies
   • 101 views
   • 
   • GlazeGus
   • May 19

2. Adding plasticity to reclaim

   By baby potter, May 4
   • 7 replies
   • 233 views
   • 
   • Callie Beller Diesel
   • May 19

3. Countering the effects of gum in commercial glazes

   By moh, May 16
   • 11 replies
   • 146 views
   • 
   • Min
   • May 17

4. Poor results with Amaco Potter's Choice Blue Spark (PC-11). What can I do to improve next time?

   By MKG001, May 30, 2023
   • 23 replies
   • 948 views
   • 
   • rebekahp
   • May 16

5. Using mason stains in magnesium matte recipe?

   By brooksms, May 13
   • 7 replies
   • 161 views
   • 
   • Rae Reich
   • May 15

6. Microwave Safe

   By Kelly in AK, May 11
   • 15 replies
   • 247 views
   • 
   • neilestrick
   • May 14

7. Bisque firing quit at 1353 after 6 hours

   By Bear Creek Studio llc, May 11
   • 10 replies
   • 291 views
   • 
   • Bear Creek Studio llc
   • May 14

8. Cone 10 Cobalt Blue w/o Soda Firing

   By sommerjono, May 6
   • 6 replies
   • 148 views
   • 
   • Min
   • May 8

9. Impending pit fire - suggested colorants and combustibles

   By DDMiller, May 7
   • 1 reply
   • 82 views
   • 
   • Min
   • May 7

10. Second firing of unglazed bisque ware to cone 6 (red mid-fire clay)

    By Norgal, April 30
    • 3 replies
    • 86 views
    • 
    • Denice
    • May 6

11. Custar Feldspar now not available again

    By Mark C., May 1
    • 3 replies
    • 137 views
    • 
    • Callie Beller Diesel
    • May 6

12. glaze test tiles (can I use both front and back side?)

    By s6x, May 4
    • 4 replies
    • 123 views
    • 
    • Pres
    • May 5

13. refiring glaze without changing it

    By oldlady, April 29
    • 9 replies
    • 184 views
    • 
    • Denice
    • May 4

14. Do I need to re-bisque?

    By Sage Real, May 3
    • 3 replies
    • 87 views
    • 
    • Min
    • May 3

15. Reitz Green without Gerstley Borate?

    By davidh4976, May 1
    • 9 replies
    • 171 views
    • 
    • Min
    • May 3

16. High fire clear glaze over under glaze - cloudiness

    By Hendrixl114, April 20
    • 10 replies
    • 328 views
    • 
    • PeterH
    • May 3

17. Toxic mold in clay? 1 2

    By Violette, April 25, 2021
    • 35 replies
    • 8.8k views
    • 
    • Bill Kielb
    • May 3

18. Kim McDonald

    By reinadelmar, May 2
    • 1 reply
    • 61 views
    • 
    • Bill Kielb
    • May 2

19. Extreme shivering off underglaze

    By Helena1, April 27
    • 15 replies
    • 216 views
    • 
    • Min
    • May 2

20. Storing Glaze Materials in Hot Environment

    By rumo, May 1
    • 2 replies
    • 83 views
    • 
    • oldlady
    • May 2

21. Glaze Shelf Life

    By Neil Fallon, April 27
    • 5 replies
    • 153 views
    • 
    • Neil Fallon
    • May 1

22. Glaze thinning over time?

    By olivia.ix, April 30
    • 3 replies
    • 128 views
    • 
    • Bill Kielb
    • April 30

23. Beginner question re saggar firing

    By Brian_Ire, April 18
    • 4 replies
    • 158 views
    • 
    • Brian_Ire
    • April 29

24. Iron oxide spangles

    By St4cey, April 25
    • 6 replies
    • 186 views
    • 
    • Rae Reich
    • April 28

25. Limiting Oxidation on Palladium?

    By Ben xyz, April 22
    • 2 replies
    • 116 views
    • 
    • PeterH
    • April 27