Tzipporah -- Sipor Ceramics on Instagram: "The mid-fire line from @speedball_ceramics is absolutely glorious and I looooove how these came out on the dark brown clay!! Do you have a favorite?? I tested these on either @kentuckymudworks brown bear or @standardclaycompany 266/710 (same color, just one with grog and one without!) They were SLOW bisque to cone 04 and SLOW glaze to cone 5!! You can find these glazes at @claykingceramics and if you use the code SIPOR then you'll receive $5 off…
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