5528マット (1.8L) new It can also be caused

It can also be caused by dust or oil (from hands) on the bisque ware before painting

That is why we can offer authentic

[Sample plate firing conditions]

ですので、釉薬のご使用3日後を目安に上水をお捨てください。

we recommend dipping the piece in glaze

5528マット (1.8L) new It can also be caused[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)