How to Paint Exterior Brick
Brick is chosen as one of the building material because of its vigorous and built-in color of which there are more choices today.
Most of the brick was never intended to be painted, and also Long-term, maintenance-free painted brick requires careful planning.
If you paint your exterior brick, you should be repainting it every three to five years. The painted brick has its style and is seen more as decorating trends change.
If you plan on painting the exterior brick either by using commercial painting or not, ensure to patch cracks and grooves that are mostly caused by ivy that breaks through when the bricks are exposed.
First Step – Clean the brick
Start to paint your exterior brick with a pressure washer. It is the ideal way to clean exterior brick.
Set the machine in place between 1500psi and 2000 psi. Do not go more than that pressure range while washing the bricks, because too much force will damage the mortar.
Add detergent to the current to remove hard deposits. The main point of washing is to clean all debris, dirt and peeling paint, nothing else.
After you are done with the washing, give the brick enough time to dry completely.
For the brick to dry completely, it will take a few days at least because block as a porous material retains moisture.
Note that the pressure washer can be hazardous. Follow all the company’s instructions and always point the water jet away from where you are standing.
Second Step – Remove peeling paint and fix mortar
In order, not to cause early flaking when you implement your coat finally, you have to remove the loose paint that is left on the face of the brick.
Hand scraper is advisable to be used for large rooms. Do not use a wire brush as it’s easy to get carried away and leave imperfections on the brick with a wire brush.
Third Step – Sand the brick smooth
Smoothen the brick with a palm sander or circular sander with a minimum of 80 sandpaper.
Next step is to replace any missing or repair any damaged mortar. Acrylic premixed mortar patch can be used that allows you to initiate painting as soon as it is dry.
Also, you can mix the mortar dust yourself, but it will take a few weeks to dry before you can start priming.
Fourth step – Prime brick
Always use an acrylic masonry or latex primer paint of high quality for exterior bricks.
Have it mind that all the mortar and bricks must be primed. You first prime the places where mildew and efflorescence occurred so that you can provide an extra layer if necessary.
It typically takes one to two hours for the layer to dry. Give the primer enough time to dry before moving on to painting.