I painted over the top of a silver and an orange color that I have.
When I first got the Black Shatter I LOVED it. But I don't remeber it working the same as every other color since then has. The blue must be applied one coat, very thin. Do NOT make two or more swipes with it or else it won't work. I do like the shatter polishes, but make sure you can work quick, because they do dry quickly.
Have a fabulous day!