The Holy Grail—A ^10 Clear Gloss Glaze Compatible With Amaco Velvet Underglazes?

[neilestrick]

11 hours ago, bubblepop said:

Hi @terraforma, how did you go with the testing? I would love to know as this is exactly the same problem I am experiencing now:) I am using Amaco Underglazes and they often bleed and run, so I am trying to find a clear glaze that will fit properly with it. I fire to cone 9-10

If they're bleeding and/or running, then the glaze is too fluid. You can stiffen up the glaze by increasing the clay content.

Amaco underglazes are, technically, made for use at low fire temps. Some will discolor at cone 6, more at cone 10. The clear glaze may or may not be a factor in the final color at cone 10, but it's worth testing a few to see what you get. Most any glossy glaze is clear if you don't add the colorants and/or opacifiers. Copper reds and celadons are all clear base glazes.