FERRO 271D CLEAR GLAZE
Ferro 271D is a transparent gloss designed specifically for glaze safety requirements in New Zealand. A very reliable and flexible glaze, it fits a wide range of commercially available ceramic clay bodies. Macs Mud clays are specifically designed to have a fit with 271D. Low Coefficient of Expansion of (56x10-7)0.212% between 20 and 400oC.
Firing range: 1050oC - 1260oC
Instructions for use: Mix 1kg of glaze powder with 1.2 litres of warm water. Sieve at 100 - 120#.
Typical kiln firing profile to 1180oC (example only):
Stage 1
Ramp: 75oC per hour
Temp: 400oC
Hold: 0
Stage 2
Ramp: 125oC per hour
Temp: 600oC
Hold: 0
Stage 3
Ramp: 150oC per hour
Temp: 1180oC
Hold: 15 minutes
Stage 4
Ramp Down: 100oC per hour
Temp: 1050oC
Hold: 1 hour
Bungs in at Stage 3
WAIKATO CLEAR STONEWARE GLAZE
This is our own Waikato Ceramics transparent lead free glaze formula for stoneware temperatures.
Firing range: 1260oC - 1300oC
Instructions for use: Mix 1kg of glaze powder with 1 litre of warm water. Sieve at 100 - 120#.