How to Apply Masonry Paint Primer

What You'll Need
Paint Brush
Power Washer / Scraper
Measuring tape

Masonry paint primer will make your paint bond to the surface effectively and stay longer. It will give your masonry wall a new, fresh look. Applying a paint primer is an easy job and you can learn to do it yourself by following the steps below.

Step 1 – Take Necessary Precautions

When applying paint primer take into consideration the weather conditions. Avoid painting in extreme weather conditions as that could tamper the quality of the painted primer. Do not apply paint primers in direct sunlight as that causes the paint primer to dry too quickly trapping the moisture under the dried surface. The over fast drying of paint primer can lead to cracks and the paint primer to peel and blister.

Step 2 - Amount of Space in Need of Primer

The next step would be to decide how much square footage primer is needed for your masonry. Using an inch tape measure the length and height in feet. The measured area will be used as the amount of the area that you will cover by the primer.

Step 3 - Choosing the Right Primer

Different paint primers work best in different conditions. In the case of masonry surfaces, masonry paint primer with anti-chalking additive is the best. Choosing the correct paint primer allows increasing the durability and the quality of your paint. It will help the paint grip and seep into the surface effectively.

Step 4 - Determine Amount of Primer

Now, decide the amount of primer required to cover the determined area. If the texture of your masonry wall is smooth it would need approximately one gallon for every 350 square feet. However, if the surface of the wall is rough, it would take one gallon to cover an area of 250 square feet. Also the amount of primer needed depends on the previous color and new color needed to cover it. If you are making a shift from dark colors to lighter colors you will need to use several layers of primer to cover it. On the other hand if a darker color replaces a lighter color less layers of primer will be required.

Step 5 - Preparing the Masonry Walls

To remove old paint, dirt or grease you will need a power washer. A power washer is one of the easiest and quickest ways to clean the surface of your masonry wall. It is best used for exterior surfaces because of the mess it makes. If you are working inside where you can’t afford to make any mess, you can use an alternative method. A scraper and a wire brush also help remove old paint and dirt. Another convenient and cheap way is to dilute a drop of dish soap in warm water and use a rag to wipe the dirt off. Allow the wall to dry.

Step 6 – Applying the Primer

Use a paint brush to apply the primer in extended even strokes. Do not leave any area exposed. After completing one coat of primer let it dry before coating it again. Refer to the manufacturer’s recommendations to check for how long a coat should be left to dry.

Step 7 - Finishing Touch

Use sandpaper to rub over the primer and smooth out the surface. Now you can apply paint over the primer.