31412ルリワラ灰釉(1.8L) 色:青 or if your painting process

or if your painting process requires touching the surface repeatedly

*Note: The color of the underglaze will change depending on your clay body and whether you use oxidation or reduction firing

we achieve the ultimate underglaze

全国一律

the glaze may be repelled

31412ルリワラ灰釉(1.8L) 色:青 or if your painting process[Firing conditions for sample plates] Clay components <br>For porcelain: Amakusa Senchu (SiO2 72. 04% Al2O3 18. 16% Fe2O3 0. 65% TiO2 0. 04% CaO 0. 49% MgO 0. 09% Na2O 0. 58% K2O 3. 00% Ig. Loss 4. 55%) For pottery: Umezaki red clay (SiO2 72. 11%, Al2O3 15. 98%, Fe2O3 2. 12%, TiO2 0. 67%, CaO 0. 12%, MgO 0. 36%, Na2O 0. 58%, K2O 2. 47%, Ig. Loss 5. 16%) Firing temperature : Reduction: 1280 Glazing : Baume concentration 50 (soak for about 3 seconds)