Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion Bringing Back Color in Faded Porcelain

I've used it for years on my keeper signs, it works best on cobalt blue. The color will stay as long as you want, you can wash the sign but it doesn't go right back to "faded blue", it does retain some luster.
There is nothing sneaky about it, you can feel the greasyness of it.