Painting pressure treated wood is different with painting natural wood because this kind of wood has been infused with a chemical to resist rotting, so you need a different way to paint it. If you find that your pressure treated wood lumber needs a new face, then you can just paint it. There are some things that you have to consider some important things to paint pressure treated wood so that you can achieve the result you want. Here are some instructions you can do to paint pressure treated wood.
Before painting pressure treated wood lumber, you have to clean the surface f the wood using a solution of detergent and warm water. Scrub all the surfaces of the treated wood lumber using a stiff bristle brush. Make sure to remove all foreign debris to make the paint hold to the wood. Rinse it with clear water once you finish cleaning and allow it to dry completely. If you find dark stains from any mold or mildew growth, you can scrub the area using bristle brush and a solution of household bleach, 1-cup bleach to ½ gallon water. Again, rinse it with clear water and allow it to dry. Test the wood moisture content using a meter to make sure that the wood register between 15 percent and 16 percent moisture content.
If you find knots are showing on your wood surface, you can scrape the areas with a paint scraper. It is very important because the knots can make a buildup resin that causes irregular surfaces under the paint. After the surface has been prepared, you can apply an even coat of 100 percent acrylic primer using a brush to all surfaces by following the manufacturer’s directions. You can add one more coat, then apply the top coat over the primer, then allow it to dry before applying the second coat. Those are some things you have to put into account when painting pressure treated wood lumber to achieve the best look you want.