How to Apply Masonry Paint: A Professional Painter's Guide

How to Apply Masonry Paint

Around this time of the year, hundreds of customers email me to book their exterior paint job. Sadly, I cannot fulfil every request.

So, I thought I would put together this handy guide to help you tackle your masonry paint job. I will take you through exactly what masonry paint is, the step-by-step process of applying masonry paint, and some pro tips to ensure everything goes as smoothly as possible.

What is Masonry Paint?

Masonry paint is a purpose-made paint for masonry surfaces such as concrete, brick, stucco, or pebble-dashed walls. It is available in various colours, finishes, and textures.

Unlike other types of paint, masonry paint provides superior adhesion, durability, and weather resistance. These properties prevent peeling, cracking, and flaking in masonry surfaces. As a result, it is ideal for exterior use.

How To Apply Masonry Paint

Tools and Materials You Will Need

Before you begin the masonry painting process, gather the following tools and materials:

  • Access: if you’re painting your exterior without scaffolding, you’ll need a ladder to paint the hard to reach parts of your masonry
  • Stiff brush or pressure washer
  • Fungicidal wash
  • Exterior filler
  • Filling knife
  • Masonry primer
  • High-quality masonry paint
  • Long-nap roller or masonry brush
  • Small brush
  • Drop cloths or plastic sheeting
  • Paint tray or bucket
  • Stirring stick

Now that you have all the necessary tools and materials ready, let’s proceed with the step-by-step process of applying masonry paint.

Step 1: Preparing the Surface

Before you start dipping your rollers and brushes into your paint trays, you must prepare your masonry surface.

  1. First, you need to clean the masonry. Grab your stiff brush or a pressure washer to remove dirt, dust, and loose or flaking paint. If you spot any areas affected by mould or mildew, use a fungicidal wash to treat these spots. Once you have finished cleaning, allow sufficient time for the surface to dry before moving on to the next step.

  2. Next, check the masonry for any cracks, holes, or imperfections. If there are, fill them with exterior filler and smoothen the surface using a filling knife.

  3. Once the repairs are complete, it’s time to apply a masonry primer. Priming helps create a smooth base and enhances paint adhesion. Choose a high-quality primer designed for masonry surfaces and follow the manufacturer’s instructions for application.

Step 2: Choosing the Right Masonry Paint

Choosing a good quality masonry paint is important when getting that professional finish you want.

You want to look for a paint that is specifically for masonry surfaces. Also, you should consider what type of colour and finish – based on your preference.

If you can’t decide on a masonry paint, you can ask your local paint supplier for advice. Or, if you are hiring a painter/decorator, you can ask them for expert advice.

Step 3: Applying the Masonry Paint

After completing the previous steps, you will have a smooth exterior surface ready for a lick of paint. Now, let’s get down to the actual painting process. 

  1. Using your stirring stick, mix the paint thoroughly to ensure an even consistency.
      
  2. Next, using your small brush, cut in the corners and edges of the surface.

  3. Now, take your long-nap roller or a masonry brush, and start painting from the top of the wall and work your way down. Apply the paint evenly, using long, vertical strokes, and ensure good coverage. 

Most surfaces will require multiple coats for a more durable and vibrant finish. Therefore, after allowing the first coat to dry, you can start applying your next coat. Apply each additional coat following the same techniques as mentioned above.

Step 4: Finishing Touches and Clean-up

Once you have achieved the desired finish with your final coat, take a step back and inspect the painted surface for any touch-ups or areas that need attention. Use a small brush to address these areas and ensure a professional finish.

Finally, clean your brushes and rollers immediately after use with water or a recommended solvent, as advised by the paint manufacturer.

Pro Tips for Applying Masonry Paint

Tackling your first masonry paint job can seem a little daunting. So, I’ve included a few tricks of the trade to help you along the way.

  • Check the weather! The best conditions for applying masonry paint are dry and warm conditions. So, it’s best to avoid painting outside in the winter in order to get the best results.
  • Use textured masonry paint to enhance the surface’s appearance and hide imperfections.
  • Use a high-quality roller or brush designed for masonry paint to achieve smoother and more even coverage.
  • Apply thin coats of paint rather than thick layers to avoid drips, runs, and uneven drying.
  • Take breaks to inspect your work from a distance and ensure even coverage and consistency throughout the project.

Conclusion

By following these step-by-step instructions, you can confidently apply masonry paint to transform your exterior walls. Remember to thoroughly prepare the surface, choose the right materials, and apply the paint using professional techniques. If you have any doubts or require additional guidance, it’s always advisable to consult with a professional exterior painter and decorator. With a little patience and attention to detail, you can achieve a stunning and long-lasting result that enhances the beauty and protection of your masonry surfaces.