The test results for Duncan Concept underglazes fired at cone 10 are in! The colors are brighter than Amaco Velvet underglazes. I'm pleased with that. However, they are a bit runny and less opaque. If you are looking for a watercolor effect, Duncan Concepts underglazes would be a good choice.
Colors from left to right:
row 1 - chartreuse, neon blue, and neon green
row 2 - neon orange, neon red, and neon yellow
Each sample also had three coats of Amaco Sahara Zinc-Free Clear (HF-9) glaze on top.