I get this question at least once a week, so I thought it best to write all about it here! I use Duncan Ceramics 22k Gold Luster. It's a teeny tiny 2oz bottle, but it goes a long way. This is applied and fired after the glaze fire, anywhere between cone 020 to 018, depending on what else I got going on for an overglaze fire. The luster takes on the texture of whatever glaze it is applied on; so if applied on a matte glaze, the gold will also be matte.
Some best practices:
I think that about does it! Lusters are a great way to add a truly special touch to any pot or sculpture. I would consider this an intermediate product/technique, since basic understandings of firing a kiln are required, and it's an expensive product that requires a delicate touch. But don't let that intimidate you; who doesn't love shiny things?
If this article was helpful, let me know in the comments. Happy luster-ing!
Artist and maker discussing art and making. Peeks into my studio life, professional tips I stumble upon, and discussions about contemporary art and craft.