Problems With Firing Reds, Pinks & Purples
Under-developed Colours or Textured Finishes
Imperfect Glazed Colours
Reds, pinks and purples are "sensitive colours" and can often appear under-developed after firing. These oxygen sensitive colours can show improper colour development, colour loss or poor textures.
- Allow greater ventilation when firing to allow moisture and gases to escape and provide oxygen to the colour.
- With these colours (and if possible) avoid placing pottery close to the direct heat of the kiln elements
- Check soak times. “Soak Time” is the time that the top temperature is held for (e.g. 1020 on most glaze firings). It is usually circa 15-630 minutes. The soak time enables each piece to hopefully reach the desired top temperature.
- Avoid excess glaze application (as this prevents oxygenation)
- Control or slow down the firing rate.
Orton Ceramics have produced a PDF on Firing Red Glaze CLICK HERE to view