Can this be used as a finish coat 2 coats?

Hi Mike, thank you for your question. As it turns out, primers are not formulated to perform like paint and cannot provide the same protection or scrubbability as a finish coat, regardless of the number of coats applied. We recommend top coating primers within 30 days to minimize dirt collection and chalking. Please feel free to reach out to us directly if you have any other questions. -Lina