I was looking for cement stucco for stenciling a pattern on bricks for the garden.. and I saw this stuff

Does it work on brick or belgian blocks? Will it hold up outside, or do I have to put a laquer or sealant on it? Has anyone used it, and how did it last over time?
Does it work on brick or belgian blocks? Will it hold up outside, or do I have to put a laquer or sealant on it? Has anyone used it, and how did it last over time?