Painting Plastic Pool Coping: A Step-By-Step Guide

how to paint plastic pool coping

Pool coping is the term for the material that caps the edge of a pool. The most common materials used for pool coping are PVC, aluminum, and steel. While PVC is not usually painted, other materials will require a slightly different technique to restore an unsightly top rail. Painting pool coping can be done in a few simple steps, but it is important to note that good prep work is required before painting. This includes cleaning the coping with a tile and vinyl cleaner, or a degreaser, and sanding down the coping with fine sandpaper to ensure the new paint will bond effectively. Once the coping is clean and dry, use painter's tape to cover the tile, water, and pool deck, and then paint the coping with pool deck paint or sealer, or epoxy spray paint.

Characteristics and Values Table for Painting Plastic Pool Coping

Characteristics Values
Materials Plastic, PVC, aluminum, steel, concrete, stone, brick
Tools Coarse, non-metallic scouring pad, sandpaper, flap wheel, ceramic disc, tape, newspaper, paintbrush, paint roller, plastic wrap, card stock, sponge, scrub brush, broom, dustpan, bucket, mild liquid soap, warm water, spray bottle, clean cloth, painter's tape
Techniques Sanding, Scuffing, power tools, cleaning, priming, painting
Paints Marine paint, epoxy paint, enamel paint, appliance epoxy spray paint, H&C Cool Feel Hi-Build Deck & Walkway Paint, Sherwin-Williams "CONTROLS RUST" spray paint
Time 48 hours after the last coat of paint before using the pool

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Prep work: cleaning, sanding, and taping

Before painting plastic pool coping, it is important to prepare the surface by cleaning, sanding, and taping the area. Here are the steps you should follow:

Cleaning:

First, thoroughly clean the coping to remove any dirt, debris, or loose paint. You can use a coarse, non-metallic scouring pad or a scrub brush to scrub the surface. If there are any caked-on stains, you may need to use a wire brush or a heavy-duty cleaner/degreaser. After scrubbing, rinse the coping with warm water to remove any remaining residue.

Sanding:

Once the coping is clean and dry, use fine sandpaper to sand down the surface. Sanding will create a smooth, solid surface for the paint to adhere to and will help the new paint bond effectively to the old paint. You can use sandpaper with a grit rating of 120 to 220, or a coarse scouring pad rated at 300 to 400 grit. If you prefer power tools, you can use a flap wheel or a ceramic disc. Just be sure to avoid using any steel wool or wire brushes, as metal particles can get into the pool and cause rust stains or leaks.

Taping:

To protect the surrounding areas from paint drips, apply painter's tape along the edges of the pool coping. You can also use duct tape, but avoid using it on the liner. Cover the tile, water, and pool deck with plastic film or paper. If you wish to protect the liner, use mild tape that won't damage it, such as masking tape. Additionally, you can slide a plastic wrap-covered sheet of cardstock in the gap between the coping and the liner to prevent paint from getting into the pool.

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Choosing the right paint

If your pool coping is made of PVC, it is not typically painted. However, if you do choose to paint PVC coping, keep in mind that it will require a slightly different technique than other materials. On the other hand, if your coping is made of aluminum, you can easily paint it using a paint specifically designed for aluminum pool coping. This type of paint is available online, and you can also use any suitable enamel paint for metals, even if it is not labelled as 'pool coping paint'.

For coping made of steel, the primary concern is rust due to the material's iron content. To address this, you can use a rust inhibitor like naval jelly before painting to slow down or stop the corrosion process. It is also essential to select a good rust-preventing paint to prolong the life of the steel coping.

If your pool has a vinyl liner, the coping is typically replaced when the liner is replaced as well. To improve the aesthetics and protect the structural integrity of the coping, you can paint it with marine paint, which is formulated to get wet and withstand exposure to water, storms, and UV rays.

Additionally, consider the application method of the paint. Spray paint will require a certain level of skill and prep work to achieve neat results and minimise overspray. Brush-method painting, on the other hand, might be more suitable for those who are new to painting.

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Painting techniques

Painting plastic pool coping is a simple task that can be done in a few steps. Firstly, it is important to clean the coping with a good degreaser such as TSP (Tri-Sodium Phosphate). This will ensure that the paint adheres properly to the surface. Once the coping is clean, use a coarse, general-purpose non-metallic scouring pad or sandpaper to sand and scuff the pool coping. This will help increase the bonding between the old and new paint. It is important to note that if you are using sandpaper, you should not use any type of steel wool or wire brush as metal can get into the liner and cause rust stains or leaks.

After sanding, make sure to rinse off any residue and let the coping dry completely. Once the coping is dry, it is time to apply primer. Use an aluminum primer or etching primer and apply two coats to any area where the aluminum is exposed and bare metal is showing. After priming, it is finally time to paint. Use a paint that is specific to marine use or suitable for both aluminum and pools. You can use either spray paint or a brush-on product. If using spray paint, make sure to spray from at least 10 inches away to avoid drips. If using a brush, pour the paint into a paint tray and apply it to the coping in smooth, even strokes, being careful to avoid paint drips.

It is important to note that you should avoid using the pool for several days after painting to ensure that water is not splashed onto the freshly painted coping. Additionally, make sure to remove any painter's tape within 24 hours of applying the final coat of paint.

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Avoiding paint drips

Painting plastic pool coping can be done using either spray paint or a brush-on product. However, it is important to take the necessary precautions to avoid paint drips, which can be unsightly and difficult to fix. Here are some detailed instructions to help you avoid paint drips when painting plastic pool coping:

Before you start painting, it is crucial to properly prepare the surface. Clean the coping with a tile and vinyl cleaner or a mild cleanser to remove any dirt, grease, or debris. If there is any loose paint or coatings, scrape and sand it smooth using fine sandpaper or a scouring pad. Sanding the surface will not only remove imperfections but also increase the bonding between the old and new paint, creating a smoother finish. Remember to wear protective gear, such as gloves and a face mask, during the cleaning and sanding process.

Once the surface is clean and smooth, rinse it thoroughly with water and allow it to dry completely. This step is important because painting on a damp surface can cause paint drips and an uneven finish. Cover the tile, water, and pool deck with painter's tape and plastic film or paper. This will protect the surrounding areas from any paint drips and ensure clean edges for your paint job. Be sure to use mild tape that won't damage the liner if you have a vinyl liner.

When you're ready to start painting, exercise caution to avoid paint drips. If using a brush-on product, don't overload the brush with too much paint, as this can cause drips. Apply the paint in smooth, even strokes, and be mindful of the amount of paint you're applying to the surface. If using spray paint, maintain a distance of at least 10 inches between the spray nozzle and the surface to avoid drips. Spray paint can also be applied using a small, super-smooth roller, but be cautious as this may leave lines where the roller has been. Always follow the instructions on the paint packaging and allow each coat of paint to dry completely before applying subsequent coats.

If you notice any paint drips during the painting process, smooth them out immediately before they have a chance to dry. This will help you achieve a uniform finish. Additionally, avoid using your pool for several days after painting to ensure that water isn't splashed onto the freshly painted coping, which can ruin your hard work.

By following these instructions and taking your time, you can effectively avoid paint drips when painting plastic pool coping, resulting in a professional-looking finish.

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Aftercare and maintenance

Now that you've painted your plastic pool coping, it's important to maintain its appearance and functionality through proper aftercare and maintenance. Here are some detailed guidelines to help you keep your pool coping in pristine condition:

Regular Cleaning:

  • It is crucial to regularly clean your pool coping to prevent the buildup of dirt, debris, and organic matter. Aim to clean it at least once a week or more frequently if your pool experiences heavy use.
  • Use a gentle cleanser or a mild detergent along with a soft brush or sponge to scrub away any accumulated grime. Avoid using abrasive cleaners or harsh chemicals as they can damage the resurfaced material.
  • Pay special attention to the mortar joints and individual stones or pavers to ensure that all areas are thoroughly cleaned.
  • If you have a vinyl liner, be cautious when cleaning the coping to avoid getting cleaning chemicals into the pool water. Consider using a tile and vinyl cleaner designed for this purpose.
  • For more challenging stains or grease, you can use a pressure washer or a solvent like paint thinner, acetone, or Xylene. Always be cautious and wear protective gear when handling strong chemicals.

Sealing for Protection:

  • In addition to regular cleaning, consider applying a protective sealant to your pool coping. A high-quality sealant will create a barrier against stains, fading, and UV damage, keeping your coping looking newer for longer.
  • Consult with a professional or refer to the manufacturer's recommendations to choose the most suitable sealant for your specific pool coping material.
  • If you notice any stains or damage to your pool coping, address them promptly by cleaning and applying a sealant to prevent further deterioration.

Maintenance and Repairs:

  • Regularly inspect your pool coping for any signs of damage, cracks, or peeling paint. It is important to address these issues as soon as they arise to prevent them from becoming bigger problems.
  • If you have a steel coping, be vigilant about checking for rust. Use a rust inhibitor like naval jelly to slow down or stop the corrosion process. You may also need to sand or grind down the rusted areas and apply a rust-preventing paint.
  • For more extensive repairs or resurfacing, it is advisable to consult a professional to ensure that the job is done correctly and safely.

By following these aftercare and maintenance guidelines, you can extend the lifespan of your plastic pool coping, maintain its visual appeal, and ensure the overall functionality of your pool area. Remember that proper maintenance is an ongoing process and will save you time, money, and hassle in the long run.

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