I have used it to make some 8x10's. And yes brushing is tricky if you want an even finish. I seal and tape the back side as to keep it from being etched. I found that diluting the paste to a thin consistency works fairly well. The results are as bright as any commercial gg I have seen. It's not perfect by-far, but you can make a functional gg in just a few minutes.
Originally Posted by Jim Chinn