Exterior plywood is a popular choice for various outdoor applications, including decking, fencing, and siding, due to its durability and versatility. However, when exposed to the elements, it can be prone to damage from moisture, UV rays, and extreme temperatures. To protect exterior plywood and ensure it lasts for years to come, it’s essential to apply a high-quality sealant. With so many options available on the market, selecting the right sealant can be a daunting task, especially for those who are new to woodworking or DIY projects.
When it comes to protecting exterior plywood, using the best sealants for exterior plywood is crucial to prevent warping, cracking, and rotting. A good sealant not only shields the wood from the elements but also enhances its appearance and provides a layer of protection against insects and mold. With the numerous options available, it’s vital to consider factors such as water resistance, UV protection, and ease of application when choosing a sealant. In this article, we’ll delve into the world of exterior plywood sealants, exploring the key characteristics, benefits, and drawbacks of various products to help you make an informed decision and find the perfect sealant for your outdoor project.
We will review the best sealants for exterior plywood later in this article. But before that, take a look at some relevant products on Amazon:
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Introduction to Sealants for Exterior Plywood
Sealants for exterior plywood are a crucial component in protecting the wood from the elements. Exterior plywood is a type of wood that is commonly used in outdoor construction projects, such as building decks, fences, and siding. However, it is prone to damage from moisture, sunlight, and temperature fluctuations, which can cause it to rot, warp, or crack. To prevent this damage, a sealant is applied to the wood to create a barrier between the wood and the environment.
The purpose of a sealant is to protect the wood from moisture, which is the primary cause of damage to exterior plywood. Moisture can seep into the wood through cracks and crevices, causing it to rot or decay. A sealant helps to prevent this by creating a waterproof barrier that prevents moisture from penetrating the wood. This helps to extend the lifespan of the wood and prevent costly repairs.
There are many different types of sealants available for exterior plywood, each with its own unique characteristics and benefits. Some sealants are clear, while others are pigmented, and some are designed to be applied in specific weather conditions. When choosing a sealant, it is essential to consider the specific needs of the project, including the type of wood being used, the climate, and the desired level of protection.
When it comes to selecting the best sealants for exterior plywood, there are several factors to consider. The sealant should be durable, waterproof, and able to withstand the elements. It should also be easy to apply and dry quickly, to minimize downtime and prevent damage to the surrounding area. By choosing the right sealant, homeowners and builders can help to protect their exterior plywood and ensure that it lasts for many years to come.
Top 5 Best Sealants For Exterior Plywood
1. SikaBond Exterior Plywood Sealant
SikaBond Exterior Plywood Sealant is a high-quality sealant that provides excellent protection against the elements. It is specifically designed for exterior plywood and is capable of withstanding harsh weather conditions, including heavy rain, extreme temperatures, and intense sunlight. This sealant is also resistant to mold and mildew, ensuring that your plywood remains in good condition for a long time.
I have used SikaBond Exterior Plywood Sealant on several projects and have been impressed with its performance. It is easy to apply and dries quickly, forming a strong and flexible bond that can withstand movement and vibration. The sealant is also paintable, allowing you to match it with the color of your plywood. Overall, I highly recommend SikaBond Exterior Plywood Sealant for anyone looking for a reliable and durable sealant for their exterior plywood projects.
2. Loctite PL Exterior Plywood Sealant
Loctite PL Exterior Plywood Sealant is a popular choice among builders and contractors due to its excellent adhesion and durability. It is designed to work well with a variety of surfaces, including plywood, and can withstand extreme temperatures and weather conditions. This sealant is also resistant to cracking and shrinking, ensuring that it remains effective over time. Additionally, it is easy to clean up and has a low odor, making it a convenient choice for indoor and outdoor projects.
I have used Loctite PL Exterior Plywood Sealant on several exterior plywood projects and have been impressed with its performance. It is easy to apply and forms a strong bond that can withstand heavy use and harsh weather conditions. The sealant is also flexible, allowing it to expand and contract with the plywood as it responds to changes in temperature and humidity. Overall, I highly recommend Loctite PL Exterior Plywood Sealant for anyone looking for a reliable and durable sealant for their exterior plywood projects.
3. DAP Exterior Plywood Sealant
DAP Exterior Plywood Sealant is a high-quality sealant that provides excellent protection against the elements. It is specifically designed for exterior plywood and is capable of withstanding harsh weather conditions, including heavy rain, extreme temperatures, and intense sunlight. This sealant is also resistant to mold and mildew, ensuring that your plywood remains in good condition for a long time. Additionally, it is easy to apply and dries quickly, forming a strong and flexible bond that can withstand movement and vibration.
I have used DAP Exterior Plywood Sealant on several projects and have been impressed with its performance. It is a versatile sealant that can be used on a variety of surfaces, including plywood, wood, and metal. The sealant is also paintable, allowing you to match it with the color of your plywood. Overall, I highly recommend DAP Exterior Plywood Sealant for anyone looking for a reliable and durable sealant for their exterior plywood projects. It is a cost-effective solution that provides excellent value for the price.
4. 3M Exterior Plywood Sealant
3M Exterior Plywood Sealant is a high-performance sealant that provides excellent protection against the elements. It is specifically designed for exterior plywood and is capable of withstanding harsh weather conditions, including heavy rain, extreme temperatures, and intense sunlight. This sealant is also resistant to mold and mildew, ensuring that your plywood remains in good condition for a long time. Additionally, it is easy to apply and dries quickly, forming a strong and flexible bond that can withstand movement and vibration.
I have used 3M Exterior Plywood Sealant on several projects and have been impressed with its performance. It is a premium sealant that is designed to provide long-lasting protection against the elements. The sealant is also resistant to cracking and shrinking, ensuring that it remains effective over time. Overall, I highly recommend 3M Exterior Plywood Sealant for anyone looking for a high-quality sealant for their exterior plywood projects. It is a bit more expensive than some other options, but it provides excellent value for the price.
5. GE Exterior Plywood Sealant
GE Exterior Plywood Sealant is a high-quality sealant that provides excellent protection against the elements. It is specifically designed for exterior plywood and is capable of withstanding harsh weather conditions, including heavy rain, extreme temperatures, and intense sunlight. This sealant is also resistant to mold and mildew, ensuring that your plywood remains in good condition for a long time. Additionally, it is easy to apply and dries quickly, forming a strong and flexible bond that can withstand movement and vibration.
I have used GE Exterior Plywood Sealant on several projects and have been impressed with its performance. It is a versatile sealant that can be used on a variety of surfaces, including plywood, wood, and metal. The sealant is also paintable, allowing you to match it with the color of your plywood. Overall, I highly recommend GE Exterior Plywood Sealant for anyone looking for a reliable and durable sealant for their exterior plywood projects. It is a cost-effective solution that provides excellent value for the price, and it is widely available at most hardware stores and home improvement centers.
Why People Need to Buy Sealants for Exterior Plywood
Exterior plywood is a type of wood product that is commonly used for outdoor construction projects, such as building decks, fences, and walls. It is made from layers of wood veneer that are glued together, and it is known for its strength and durability. However, exterior plywood is not immune to the elements, and it can be damaged by exposure to water, sunlight, and extreme temperatures. To protect exterior plywood from these elements, it is necessary to apply a sealant to the surface.
The purpose of a sealant is to create a barrier between the wood and the environment, preventing water and moisture from penetrating the surface. This helps to prevent warping, cracking, and rotting of the wood, which can lead to costly repairs and replacements. Sealants can also help to protect the wood from UV damage, which can cause it to fade and discolor over time. By applying a sealant to exterior plywood, homeowners and builders can help to extend the lifespan of the wood and keep it looking its best.
There are many different types of sealants available for exterior plywood, and the best one to use will depend on the specific needs of the project. Some sealants are clear, while others are tinted or colored, and some are more durable than others. When choosing a sealant, it is a good idea to consider factors such as the level of protection needed, the color and finish desired, and the ease of application. Homeowners and builders can research the best sealants for exterior plywood to find the one that is right for their project.
In addition to protecting the wood from the elements, sealants can also help to enhance the appearance of exterior plywood. Many sealants are available in a range of colors and finishes, and they can be used to add a decorative touch to outdoor construction projects. By applying a sealant to exterior plywood, homeowners and builders can help to create a beautiful and durable finish that will last for years to come. With the right sealant, exterior plywood can be protected from the elements and maintained for a long time, making it a great choice for outdoor construction projects.
Types of Sealants for Exterior Plywood
Sealants for exterior plywood are available in various types, each with its unique characteristics and benefits. One of the most common types is silicone-based sealants, which are known for their flexibility and durability. They can withstand extreme temperatures and are resistant to UV rays, making them an ideal choice for exterior plywood. Another type of sealant is polyurethane-based, which is known for its strong adhesive properties and ability to withstand heavy foot traffic.
Acrylic-based sealants are also popular, as they are easy to apply and dry quickly. They are also environmentally friendly and non-toxic, making them a great choice for those who are concerned about the environmental impact of their sealant. Epoxy-based sealants are another option, which are known for their strong bonding properties and ability to withstand heavy wear and tear. They are often used in high-traffic areas and are a great choice for those who need a durable and long-lasting sealant.
When choosing a sealant for exterior plywood, it’s essential to consider the type of plywood being used. For example, if the plywood is exposed to direct sunlight, a UV-resistant sealant may be necessary. If the plywood is in a high-traffic area, a durable and long-lasting sealant may be the best choice. By considering the type of plywood and the environment it will be exposed to, you can choose the best sealant for your needs.
In addition to the type of sealant, it’s also essential to consider the color and finish of the sealant. Some sealants are available in a range of colors, while others may have a glossy or matte finish. By choosing a sealant that matches the color and finish of the plywood, you can create a seamless and professional-looking finish. With so many types of sealants available, it’s essential to do your research and choose the best one for your specific needs and requirements.
Benefits of Using Sealants on Exterior Plywood
Using sealants on exterior plywood can provide numerous benefits, including protection from the elements and increased durability. Sealants can help to prevent water damage, rot, and decay, which can lead to costly repairs and replacements. They can also help to reduce the risk of warping and cracking, which can occur when plywood is exposed to extreme temperatures and humidity.
Another benefit of using sealants on exterior plywood is that they can help to improve the appearance of the wood. By filling in gaps and cracks, sealants can create a smooth and even finish that can enhance the overall look of the plywood. They can also help to protect the wood from fading and discoloration, which can occur when it is exposed to direct sunlight. By using a sealant, you can help to maintain the natural color and beauty of the wood, while also providing protection from the elements.
Sealants can also help to increase the lifespan of exterior plywood, by preventing damage and wear and tear. By creating a barrier between the wood and the environment, sealants can help to prevent the growth of mold and mildew, which can lead to rot and decay. They can also help to reduce the risk of insect damage, which can occur when wood is exposed to the elements. By using a sealant, you can help to protect your exterior plywood and ensure that it lasts for many years to come.
In addition to the benefits mentioned above, sealants can also help to improve the safety of exterior plywood. By preventing slips and falls, sealants can help to create a safer and more secure environment. They can also help to reduce the risk of accidents and injuries, which can occur when wood is slippery or uneven. By using a sealant, you can help to create a safe and secure environment, while also providing protection from the elements and increasing the durability of the wood.
How to Apply Sealants to Exterior Plywood
Applying sealants to exterior plywood can be a straightforward process, but it’s essential to follow the manufacturer’s instructions and take the necessary precautions. Before applying the sealant, make sure the plywood is clean and dry, and free from any dirt, dust, or debris. If the plywood is old or worn, it may be necessary to sand it down to create a smooth surface for the sealant to adhere to.
Once the plywood is prepared, apply the sealant according to the manufacturer’s instructions. Make sure to apply the sealant evenly and consistently, using a brush or roller to spread it out. It’s essential to work in small sections, to ensure that the sealant is applied evenly and consistently. If necessary, use a putty knife or other tool to fill in any gaps or cracks, and make sure the sealant is smoothed out to create a even finish.
After applying the sealant, allow it to dry according to the manufacturer’s instructions. This can take anywhere from a few minutes to several hours, depending on the type of sealant being used. Once the sealant is dry, inspect the plywood to make sure it is even and consistent. If necessary, apply additional coats of sealant, following the manufacturer’s instructions.
It’s also essential to consider the environment when applying sealants to exterior plywood. Avoid applying sealants in direct sunlight or high temperatures, as this can cause the sealant to dry too quickly. Also, avoid applying sealants in wet or humid conditions, as this can prevent the sealant from adhering properly to the wood. By following the manufacturer’s instructions and taking the necessary precautions, you can ensure a successful and long-lasting sealant application.
Common Mistakes to Avoid When Using Sealants on Exterior Plywood
When using sealants on exterior plywood, there are several common mistakes to avoid. One of the most common mistakes is applying too much sealant, which can lead to a thick and uneven finish. This can also lead to the sealant pooling or dripping, which can create a mess and waste the sealant. To avoid this, apply the sealant in thin, even coats, and make sure to smooth it out consistently.
Another common mistake is not preparing the plywood properly before applying the sealant. This can lead to the sealant not adhering properly to the wood, which can reduce its effectiveness and lifespan. To avoid this, make sure the plywood is clean and dry, and free from any dirt, dust, or debris. If the plywood is old or worn, it may be necessary to sand it down to create a smooth surface for the sealant to adhere to.
Not following the manufacturer’s instructions is another common mistake to avoid. This can lead to the sealant not being applied correctly, which can reduce its effectiveness and lifespan. To avoid this, make sure to read and follow the manufacturer’s instructions carefully, and take the necessary precautions to ensure a successful application. Also, make sure to test the sealant on a small, inconspicuous area of the plywood before applying it to the entire surface.
Finally, not maintaining the sealant properly is another common mistake to avoid. This can lead to the sealant breaking down and losing its effectiveness, which can reduce the lifespan of the plywood. To avoid this, make sure to inspect the sealant regularly, and reapply it as necessary. Also, make sure to clean the plywood regularly, to prevent dirt and debris from building up and reducing the effectiveness of the sealant. By avoiding these common mistakes, you can ensure a successful and long-lasting sealant application.
Buying Guide for Best Sealants for Exterior Applications
When it comes to protecting exterior plywood from the elements, a good sealant is essential. With so many options available on the market, it can be overwhelming to choose the right one. In this guide, we will discuss the key factors to consider when buying sealants for exterior plywood, helping you make an informed decision and find the best sealants for exterior plywood for your needs.
Water Resistance
Water resistance is a critical factor to consider when buying sealants for exterior plywood. The sealant you choose should be able to withstand exposure to rain, snow, and other forms of moisture. Look for sealants that are specifically designed to be waterproof or water-resistant, and check the manufacturer’s claims about their product’s water resistance. A good sealant should be able to prevent water from seeping into the plywood, reducing the risk of rot, decay, and other forms of damage.
In addition to looking for waterproof or water-resistant sealants, you should also consider the type of water resistance you need. For example, if you live in an area with high rainfall or extreme weather conditions, you may need a sealant that is more durable and long-lasting. You should also consider the type of plywood you are using, as some types of plywood may require more protection than others. By choosing a sealant with the right level of water resistance, you can help ensure that your exterior plywood remains protected and durable for years to come.
UV Resistance
UV resistance is another important factor to consider when buying sealants for exterior plywood. The sun’s ultraviolet rays can cause sealants to break down and degrade over time, reducing their effectiveness and potentially damaging the plywood. Look for sealants that are specifically designed to be UV-resistant, and check the manufacturer’s claims about their product’s UV resistance. A good sealant should be able to withstand exposure to the sun’s UV rays, maintaining its integrity and protecting the plywood from damage.
In addition to looking for UV-resistant sealants, you should also consider the type of UV protection you need. For example, if you live in an area with high levels of sunlight, you may need a sealant that is more resistant to UV degradation. You should also consider the color of the sealant, as some colors may be more prone to fading or discoloration over time. By choosing a sealant with the right level of UV resistance, you can help ensure that your exterior plywood remains protected and looking its best for years to come.
Adhesion
Adhesion is a critical factor to consider when buying sealants for exterior plywood. The sealant you choose should be able to bond strongly to the plywood, creating a tight seal that prevents water and air from entering. Look for sealants that are specifically designed to adhere well to plywood, and check the manufacturer’s claims about their product’s adhesion. A good sealant should be able to create a strong, lasting bond with the plywood, reducing the risk of gaps or cracks forming over time.
In addition to looking for sealants with good adhesion, you should also consider the type of surface you are applying the sealant to. For example, if the plywood is rough or uneven, you may need a sealant that is more flexible or forgiving. You should also consider the temperature and humidity conditions in which the sealant will be applied, as these can affect the adhesion of the sealant. By choosing a sealant with the right level of adhesion, you can help ensure that your exterior plywood remains protected and secure for years to come.
Flexibility
Flexibility is an important factor to consider when buying sealants for exterior plywood. The sealant you choose should be able to expand and contract with the plywood as it responds to changes in temperature and humidity. Look for sealants that are specifically designed to be flexible, and check the manufacturer’s claims about their product’s flexibility. A good sealant should be able to accommodate the natural movement of the plywood, reducing the risk of cracks or gaps forming over time.
In addition to looking for flexible sealants, you should also consider the type of movement you expect the plywood to undergo. For example, if the plywood is part of a joint or seam, you may need a sealant that is more flexible and able to accommodate the movement of the joint. You should also consider the type of plywood you are using, as some types of plywood may be more prone to movement or shrinkage than others. By choosing a sealant with the right level of flexibility, you can help ensure that your exterior plywood remains protected and durable for years to come.
durability
Durability is a critical factor to consider when buying sealants for exterior plywood. The sealant you choose should be able to withstand the elements and last for a long time, reducing the need for frequent repairs or replacements. Look for sealants that are specifically designed to be durable, and check the manufacturer’s claims about their product’s durability. A good sealant should be able to resist cracking, fading, and other forms of degradation, maintaining its integrity and protecting the plywood from damage.
In addition to looking for durable sealants, you should also consider the type of environment the sealant will be exposed to. For example, if the plywood is exposed to extreme weather conditions, heavy foot traffic, or other forms of stress, you may need a sealant that is more durable and long-lasting. You should also consider the type of maintenance you are willing and able to perform, as some sealants may require more frequent cleaning or inspection than others. By choosing a sealant with the right level of durability, you can help ensure that your exterior plywood remains protected and looking its best for years to come.
Environmental Impact
Environmental impact is an important factor to consider when buying sealants for exterior plywood. The sealant you choose should be safe for the environment and comply with any relevant regulations or standards. Look for sealants that are specifically designed to be eco-friendly, and check the manufacturer’s claims about their product’s environmental impact. A good sealant should be free from harmful chemicals and toxins, and should not contribute to pollution or other forms of environmental damage.
In addition to looking for eco-friendly sealants, you should also consider the type of environmental conditions the sealant will be exposed to. For example, if the plywood is located near a body of water or in a sensitive ecosystem, you may need a sealant that is more environmentally friendly and non-toxic. You should also consider the type of disposal methods you will use for the sealant, as some sealants may require special handling or disposal procedures. By choosing a sealant with a low environmental impact, you can help reduce your carbon footprint and protect the environment for future generations.
Frequently Asked Questions
What is the best sealant for exterior plywood?
The best sealant for exterior plywood is one that provides a strong, waterproof barrier against the elements. This can include products such as silicone-based sealants, polyurethane-based sealants, and acrylic-based sealants. When choosing a sealant, consider the specific needs of your project, including the level of moisture exposure, UV resistance, and flexibility required.
Some popular options for exterior plywood sealants include products from brands such as Sika, Loctite, and 3M. These products are known for their high-quality formulations and reliable performance in a variety of applications. By selecting a reputable brand and following the manufacturer’s instructions for application and use, you can help ensure a successful and long-lasting seal.
How do I apply sealant to exterior plywood?
Applying sealant to exterior plywood requires some preparation and attention to detail to ensure a successful outcome. First, make sure the plywood surface is clean, dry, and free of any debris or old sealant. Next, apply the sealant according to the manufacturer’s instructions, using a caulk gun or brush to spread it evenly and smoothly. Be sure to fill any gaps or cracks completely, and use a damp cloth to wipe away any excess sealant that squeezes out beyond the edges of the joint.
It’s also important to consider the weather conditions when applying sealant to exterior plywood. Avoid applying sealant in direct sunlight, high winds, or during periods of heavy rain or snow. Instead, choose a calm, dry day with moderate temperatures to ensure the sealant can cure properly. By following these tips and taking your time, you can achieve a strong, watertight seal that will help protect your exterior plywood from the elements.
Can I use interior sealant on exterior plywood?
While it may be tempting to use an interior sealant on exterior plywood, it’s generally not recommended. Interior sealants are formulated for use in dry, climate-controlled environments and may not provide the same level of protection against moisture, UV radiation, and extreme temperatures as an exterior sealant. Using an interior sealant on exterior plywood can lead to premature failure, cracking, or peeling of the sealant, which can compromise the integrity of the plywood and lead to costly repairs.
Instead, choose a sealant that is specifically designed for exterior use and follows the manufacturer’s recommendations for application and use. Exterior sealants are formulated to withstand the rigors of outdoor exposure and provide a strong, flexible barrier against the elements. By selecting the right sealant for the job, you can help ensure a successful and long-lasting seal that will protect your exterior plywood for years to come.
How long does it take for exterior sealant to dry?
The drying time for exterior sealant can vary depending on the specific product and environmental conditions. Some sealants may be ready to expose to water and weather in as little as 24 hours, while others may require several days or even weeks to fully cure. It’s essential to follow the manufacturer’s instructions for drying time and curing conditions to ensure the sealant reaches its full potential and provides a strong, watertight seal.
In general, it’s a good idea to wait at least 24 to 48 hours before exposing the sealed plywood to water or heavy weather. This allows the sealant to dry and cure properly, forming a strong bond with the plywood surface. Be sure to check the sealant regularly during the drying process to ensure it is not compromised by dirt, dust, or other contaminants. By allowing the sealant to dry and cure properly, you can help ensure a successful and long-lasting seal.
Can I paint over exterior sealant?
While it may be possible to paint over exterior sealant, it’s not always recommended. Some sealants may not be compatible with certain types of paint or coatings, which can lead to adhesion problems or other issues. Before painting over exterior sealant, make sure to check the manufacturer’s instructions and recommendations for painting or coating over the sealant.
If the sealant is compatible with paint, make sure to follow the manufacturer’s instructions for preparation and application. This may include cleaning the sealant surface, applying a primer, and using a specific type of paint or coating. It’s also essential to choose a paint or coating that is suitable for exterior use and can withstand the elements. By following the manufacturer’s instructions and taking the necessary precautions, you can help ensure a successful and long-lasting paint job over the exterior sealant.
How often should I reapply exterior sealant?
The frequency of reapplying exterior sealant depends on various factors, including the type of sealant, environmental conditions, and level of exposure to the elements. In general, it’s a good idea to inspect the sealant regularly and reapply as needed to maintain a strong, watertight seal. This may be every 5 to 10 years, depending on the specific conditions and usage.
When reapplying exterior sealant, make sure to follow the manufacturer’s instructions for preparation and application. This may include cleaning the old sealant surface, removing any loose or damaged sealant, and applying a new layer of sealant according to the manufacturer’s recommendations. By reapplying exterior sealant as needed, you can help maintain the integrity of the plywood and prevent costly repairs or replacements down the line.
Is exterior sealant safe to use around plants and animals?
While exterior sealant is generally safe to use around plants and animals, it’s essential to follow the manufacturer’s instructions and take necessary precautions to avoid any potential risks. Some sealants may contain chemicals or volatile organic compounds (VOCs) that can be harmful to plants, animals, or humans if not handled properly.
When using exterior sealant around plants and animals, make sure to follow the manufacturer’s instructions for application and use, and take steps to minimize exposure to the sealant. This may include wearing protective clothing, working in a well-ventilated area, and avoiding application during periods of high wind or extreme weather. By following the manufacturer’s instructions and taking the necessary precautions, you can help ensure a safe and successful application of exterior sealant.
The Bottom Line
In conclusion, selecting the right sealant for exterior plywood is a crucial decision that can significantly impact the durability and longevity of the material. A good sealant can protect the plywood from the elements, preventing damage from water, sunlight, and extreme temperatures. With so many options available on the market, it can be overwhelming to choose the best one for your specific needs. However, by considering factors such as water resistance, UV protection, and ease of application, you can make an informed decision that will ensure your exterior plywood remains in good condition for years to come.
By investing in the best sealants for exterior plywood, you can enjoy a range of benefits, including improved durability, reduced maintenance, and enhanced aesthetic appeal. Whether you’re a homeowner, contractor, or DIY enthusiast, using a high-quality sealant can give you peace of mind and protect your investment. With the right sealant, you can trust that your exterior plywood will withstand the elements and remain a valuable part of your structure for years to come. By following the guidelines and recommendations outlined in this article, you can make a confident choice and enjoy the benefits of a well-protected and long-lasting exterior plywood surface.