We bought a red brick mid-century ranch 3 years ago and have been renovating it since. The outside was nice, but I wanted to up the curb appeal. I was originally going to paint the brick, but did some research and came across a product called Limelike from Dyebrick. It's similar to a Lime but is supposed to be more eco-friendly. It allows the brick to "breathe" unlike paint. It ships as powder in bags and you mix it with water, allowing you to control the dilution and coverage. I did some testing and liked the non-uniform look, so I added about 950ml of water per pack instead of the recommended 850ml for higher transparency. It dries within an hour and it's super easy. Covers quicker than paint and almost goof proof