Asphalt tennis court maintenance includes removing standing water, eliminating grass growing in the cracks and fixing cracks. These repairs can be tedious especially if you have little understanding on how to make those repairs. Most repairs are necessary due to natural ageing of the pavement; however, sometimes improper design and construction of the court can lead to repairs.
Prepare the asphalt surface for repairs. Clean any cracks containing growing grass with a putty knife. Run the knife in the crack, cutting the grass out of the crack. Wash the entire surface with a high powered pressure washer. Fill the cracks with an acrylic patch material from your local hardware store.
Repair areas that hold water. Scar the area with a small grinder. This allows the acrylic patch material to stick to the area. Mix and apply the acrylic patch material according to the manufacturer's directions.
Apply a base coat of acrylic resurfacer to the court according to the manufacturer's directions. A base coat is not required; however, it does fill in certain areas, covering imperfections in the surface. Apply the base coat using a Squeegee, taking care to ensure the edge is always wet.
Apply the acrylic colour evenly and thoroughly as this is your top coat. Apply the colour using a Squeegee.
Paint tennis court lines to regulation size. Use masking tape and a tape measure to measure exactness. Apply paint with a 4-inch roller along masked lines. Clean paint edges for neatness.
Apply as many coats of the acrylic patch material as necessary to even out the court. Ensure you have enough help available to run the Squeegee and mix the acrylic patch material simultaneously as it dries out quickly. If mixing two different batches of acrylic colouring material, take care to mix them exactly the same as it is important that the colour be the same for both.