Do it!
EXPOSED BRICK
1 Gently chip away plaster with a masonry hammer and chisel over the area you want to expose.
2 You need to scrape away any loose plaster that’s left with a wire brush, so that the bricks and mortar are completely clear.
3 Give the bricks a good clean. Start at the top of the area, and clean off any dust and residue with warm water and a sponge.
4 Seal the brick, using a specialist brick sealant so that the surface remains in good condition.