Composite decking is a popular alternative to natural wood decking. It is made from a combination of plastic and wood fibers or other filler materials. The advantages of composite decking include its durability, low maintenance, stain and fade resistance. However, composite decking can still show signs of weathering over time. Using a stain on composite decking can help keep it looking good as new.
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Can you stain composite decking?
Yes, you can stain composite decking. While composite decking is highly resilient and typically requires no staining, applying stain can provide extra protection, restore color, and enhance the beauty of the deck. Staining composite decking also allows you to change the color if desired over time.
Benefits of staining composite decking
- Restore faded color from sun exposure
- Provide added protection from UV rays
- Reduce the appearance of scratches and scuffs
- Customize the color of the deck
- Enhance the wood-like grain pattern
Stain soaks into the porous surface of composite decking in a similar way to natural wood. This allows the pigment to adhere properly and rejuvenate the color. However, composites contain mixed materials, so the staining results can be less consistent than staining real wood. Testing the stain first is advisable.
What type of stain should you use?
There are several options when choosing a stain for composite decking:
Acrylic latex stains
Acrylic latex stains are a top choice for staining composite decks. The acrylic binders allow the pigment to properly penetrate the decking surface. Acrylic stains are flexible, fade-resistant, and long-lasting. They perform well on composite materials and are easy to apply. Water cleanup also makes them simple to work with.
Oil-based stains
Oil-based stains contain pigment suspended in a carrier such as linseed oil, tung oil, or mineral spirits. They provide excellent penetration and durable color that resists fading. However, oil-based products may not adhere as well to composite decking compared to wood. They also require mineral spirit cleanup.
Solid color deck stains
Solid color stains for decks create an opaque, uniform color on the surface. They contain higher pigment levels and provide maximum UV protection. Solid stains help hide flaws and can significantly transform the look of composite decking. They may require more frequent reapplication compared to transparent or semi-transparent options.
Semi-transparent deck stains
Semi-transparent stains allow some of the underlying deck color to show through. This provides a more natural, translucent color result. The wood grain also remains somewhat visible. Semi-transparent stains last longer than solid colors and may require less frequent reapplication on composite decks.
How to choose the right stain color
Choosing the ideal stain color for your composite deck depends on your preferences and the existing deck color:
- For a gray deck, grays, cool tones, or neutral colors work well
- For a brown deck, browns, warm wood tones, and natural colors complement best
- Stain slightly darker than the current shade to rejuvenate color
- Go significantly darker or lighter to dramatically change the look
- Test samples on an inconspicuous area first
It’s also important to consider the style of your home, outdoor spaces, and overall color scheme when selecting a stain color. Your local paint retailer can help you pick the perfect color to enhance your composite decking.
How to prepare composite decking for staining
Proper preparation is crucial for the stain to adhere properly to composite decking. Here are some tips for getting your deck ready for staining:
- Clean the deck thoroughly with a deck cleaner and brightener to remove dirt, debris, and old finish
- Lightly sand the deck to improve stain adhesion
- Rinse off any cleaner residue and let the deck dry completely
- Repair any cracks, splinters, or damaged areas
- Apply stain within 2-3 days of cleaning for best results
It’s also important to pay attention to the condition of your deck. Heavily weathered or warped boards may not take the stain evenly. Replacing damaged boards first can improve the finished look.
How to apply stain to a composite deck
Follow these steps for staining your composite decking:
- Test your chosen stain color on a small, inconspicuous area first
- Read and follow the manufacturer’s instructions for application and drying times
- Select a day with dry weather when temperatures are between 50-90°F
- Use a pump sprayer, roller, stain pad applicator, or brush to apply an even coat
- Maintain a wet edge and work in sections to prevent lap marks
- Allow the stain to dry completely before adding a second coat, if desired
- Let the freshly stained deck cure for 2-3 days before regular foot traffic
- Clean application tools promptly with the recommended thinner
Taking care to apply the stain smoothly and evenly is important for getting great results on your composite decking. Avoid overworking the stain or allowing excess material to puddle or dry on the surface.
How long does composite deck stain last?
On average, you can expect your stained composite deck to last approximately:
- 1-3 years for solid color stains
- 3-5 years for semi-transparent stains
However, several factors affect the lifespan of stained composite decking:
- Quality of the stain product
- Amount of direct sun and foot traffic
- Care and maintenance provided
- Proper surface preparation before staining
- Evenness of the stain application
Higher quality stains that offer UV protection, mold resistance, and fade resistance will last longer. Periodic cleaning and reapplication of stain when needed will also extend the life and beauty of your composite deck.
How to clean and care for stained composite decks
Here are some recommendations for properly caring for your stained composite deck:
- Allow the recommended full curing time before using the deck
- Rinse off dirt and debris with a hose periodically
- Clean with composite deck cleaner every 6-12 months
- Reapply stain when fading or wear begins showing
- Avoid abrasive cleaners, pressure washing, and rubber-backed mats
- Inspect decking closely each year and make repairs as needed
Using the right composite deck cleaners and following the stain manufacturer’s care guidelines will help maintain the stain and keep your deck looking its best. Avoiding use of overly harsh chemicals or abrasives prevents damage to the stained surface.
Conclusion
Staining is an excellent option for enhancing and protecting composite decks. Acrylic, oil-based, and water-based stains can all be effective choices. Proper prep work, careful application, and routine maintenance are key factors for success and longevity when staining composite decking. The right high quality deck stain keeps a composite deck vibrant, resilient, and beautiful for years of outdoor living enjoyment.
