Quck answer
Composite decking can be painted, but it is not recommended. The paint may not adhere well to the surface and can peel or chip over time. Additionally, painting the decking can void any warranties that may be in place. Instead of painting, it is recommended to clean and maintain the decking regularly to keep it looking its best. This involves using a mild detergent and water to remove dirt and stains, and using a soft-bristle brush or pressure washer on a low setting to avoid damaging the surface. Regular maintenance will help preserve the color and integrity of the composite decking.
Homeowners often prefer composite decking for its low-maintenance qualities. However, what happens when the original color fades, or the boards become stained by spills? You may wonder if it’s possible to paint composite decking. The answer is yes, you can paint composite decking in some cases, but only if the deck is properly cleaned, prepped, and primed. Nevertheless, not all composite decking can be painted.
Is it Advisable to Paint Composite Decking?
Older composite decking, especially those made before 2010, are usually the best candidates for painting. If you have a newer version, it probably has a PVC cap or shell that wouldn’t allow paint to stick. You can determine if it has the shell by looking at the cut end. Newer types that won’t accept paint usually have a gray or brown core, which is the composite material, surrounded by the outer veneer. Painting newer composite decking may void your warranty, so it’s best to check with the manufacturer before proceeding.
What You’ll Need:
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Canvas drop cloths
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Trisodium phosphate or a TSP alternative
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Rubber gloves
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Dust mask
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Protective eyewear
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Bucket
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Sponge
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Scrub brush
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Garden hose
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240-grit sandpaper
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Broom or dust brush
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Acrylic latex exterior primer
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Paint roller and extension pole
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Roller tray
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Porch paint
Steps to Paint Composite Decking
Step 1: Prepare the Surface
Begin this project when there is no forecast of rain for two days, and outdoor temperatures are between 50 and 95 degrees Fahrenheit. Cover any foliage or paved areas with canvas drop cloths or high-quality plastic drop cloths.
Step 2: Prepare the TSP
Mix trisodium phosphate in water according to the recommended dilution on the product’s label. Some communities have banned TSP for environmental reasons, but products labeled as TSP alternatives are equally effective cleaning agents. You could use ordinary dish soap instead of TSP, but TSP will clean your decking and help degloss the surface before priming.
Step 3: Clean the Deck
Apply the TSP to the decking with a sponge and use a scrub brush on any areas of the deck that are particularly dirty or greasy. Wear rubber gloves, a dust mask, long pants, a long-sleeved shirt, and eye protection when working with TSP.
Step 4: Rinse the TSP
Rinse off the TSP solution with your garden hose and allow the deck to dry.
Step 5: Sand Your Composite Decking
Sand the decking with 240-grit sandpaper in the direction of the grain texture to gently degloss the plank. Wipe the sanding dust away with a broom or dust brush.
Step 6: Apply the Primer
Pour some acrylic latex exterior primer into a roller tray.
Step 7: Roll on the Paint
Apply the primer to the decking with a paint roller, moving the roller along the length of the planks in a back and forth motion. Attaching an extension pole to the roller handle will allow you to paint while standing upright. You can use a pump garden sprayer in place of the roller for applying primer and paint.
Step 8: Wait for the Primer to Dry
While waiting for the primer to dry, clean the roller tray and roller with running water. The drying process usually takes one to two hours, or as specified on the label of the product. Once the primer is dry, you can pour the porch paint into the roller tray.
Step 9: Paint the Decking
Using the roller, apply the porch paint to the decking and let it dry completely before adding a second coat. The drying time may vary, so refer to the manufacturer’s instructions for the recommended recoat time.
Tip
You may opt for an exterior bonding primer, also known as an adhesion primer, instead of the all-purpose acrylic primer. Although more expensive, these primers provide a better grip, which extends the performance of the porch paint.
FAQ
1. Can you paint composite decking?
Yes, you can paint composite decking, but it is important to follow the correct process to ensure a long-lasting and professional finish. Firstly, clean the surface of the decking thoroughly using a mild detergent and water. Rinse it well and allow it to dry completely before proceeding. Next, lightly sand the surface to remove any glossy finish and create a rough texture for better paint adhesion. Use a high-quality primer that is suitable for composite materials, and apply it evenly using a paintbrush or roller. Once the primer is dry, you can apply your chosen paint color. It is recommended to use an exterior-grade latex paint for best results. Apply multiple thin coats rather than one thick coat for better durability. Allow the paint to dry completely between coats. Finally, apply a clear sealer to protect the paint and enhance its longevity.
2. Will painting composite decking affect its durability?
No, painting composite decking will not significantly affect its durability if the correct preparation and painting techniques are followed. Composite decking is designed to be low-maintenance and resistant to fading, staining, and rotting. However, painting the surface can provide additional protection against the elements and enhance its appearance. It is important to choose high-quality paint and primer that are specifically formulated for composite materials. Proper cleaning, sanding, and priming before painting will ensure good paint adhesion and long-lasting results. Additionally, applying a clear sealer after painting will further protect the paint from wear and tear. With proper care and maintenance, a painted composite decking can retain its durability for many years.
3. Are there any drawbacks to painting composite decking?
While painting composite decking can offer several benefits, there are some drawbacks to consider. One major drawback is that the painted surface may require more frequent maintenance compared to the original composite material. Over time, the paint may chip, peel, or fade, especially in high-traffic areas or under harsh weather conditions. Additionally, painting the decking will alter its texture, potentially making it less slip-resistant. It is important to choose a paint color that is suitable for outdoor use and can withstand UV rays and other environmental factors. Regular cleaning and touch-ups may be necessary to maintain the appearance of the painted surface. Despite these drawbacks, many homeowners find that painting composite decking allows them to customize and refresh their outdoor space according to their preferences.