Marine … One of the most efficient kinds of plywood is Marine-Grade Plywood. In case you weren’t aware of marine grade plywood and what gives it its name, let’s go through a complete breakdown of everything you could hope to know about marine grade plywood. It also requires less maintenance than other kinds of epoxy sealer. But with a little time and effort, you can make your own marine plywood by waterproofing less expensive regular plywood. You may be wondering how Marine-Grade Plywood should be treated, including whether or not it should be sealed. Allow the epoxy to dry then seal the bottom edge and the back of the plywood. Sealing marine plywood is a lot like sealing other types but it does differ slightly. Plywood, while a relatively inexpensive product to use, can be particularly tricky when it comes to finishing. Be sure to focus on one section at a time until a thin coat covers the whole plywood. Dip a foam brush into the clear, penetrating epoxy. Do You Have To Seal Plywood? We welcome your comments and If you have ever wondered how to waterproof wood for a boat, you are about to learn. Charles is a highly experienced equipment operator of Bobcats, backhoes, D-9 front end loader, hydraulic cranes, GRT piledriver, concrete saws, regular and extended reach forklifts, and he has operated a working barge on Tampa Bay and the Intercoastal Waterway as a Marine Construction sub-contractor building custom docks. Marine plywood is a particular variety of plywood that’s been treated to withstand moisture.As the name implies, it’s often used on boats and other items that are in frequent contact with water. Since marine plywood is typically used underwater, you’ll need to treat every surface of the wood with sealant. If you have a boat or are planning on building something that will be submerged in water, then marine plywood is what you'll be working with. I was wondering if I could just use epoxy/fibatape combo to seal the seams and add strength where the panels come together, and then just use something like rubberized roof sealant (like used on the CozyBoat by TimAnderson) to seal the rest of the plywood from rot. However, they guy I bought the wood from yesterday said I was crazy if I did not. Then, use a tack cloth to thoroughly clean up any dust you created during the process. – Brock Usually, you will find that the marine plywood is thicker than standard plywood; therefore, you’ll need to apply more layers of sealer to extend its lifespan. Yes, because plain plywood board is not rot-resistant. Generally, you should add as many coats of a sealant as there are the layers of the plywood. Above mentioned methods and tips are also valuable for … Hi Nanook57, you don't have to seal the plywood, but you do have to level the floor before you put it down. Step 1 – Sanding Your Marine Plywood The very first thing you’re going to want to do to your Marine Plywood if you’re planning on using it in water or outside is to sand it. You want to sand in a … He said some of the signs have been knocked down into the dirt and wet grass and and the plywood has never warped or rotted. Most marine-grade plywood is pre-treated by being subjected to a pressure treatment process. Plywood is tough but it still needs to be sealed, especially on the edges, to prevent moisture penetration when used outdoors. We prefer clear, penetrating epoxy because it works its way deep into the wood, dries transparent, and requires less maintenance than other types of sealant. One of the things marine plywood has in common with other types is that you will always need to sand it down in order to stain, paint, or seal it. Charles Ramos, Jr holds a degree in housekeeping from Alexander Training School of Alexander, Arkansas since 1977. However, keep it off of the surface of the plywood sheet by taping the surface with masking tape. You can add a few extra thin coats during this last step, although at this point you can alternate between vertical and horizontal strokes. It is the only type of plywood that can withstand being constantly submerged in water. It is the only type of plywood that can withstand being constantly submerged in water. home improvement and repair website. This marine sealant is undoubtedly an outstanding adhesive that is … Best Way To Seal Plywood. ... once the sealer is applied to the plywood and dried, you will want to wipe the wood down with a damp cloth and sand it lightly with a 100 to 200 grit sandpaper. Now you have become familiar with our guide on how to seal plywood for outdoor use. Haven’t you found the right marine grade sealant for your boat yet? Curtis will always work hard to find any item you need, even if we don’t have it in stock. Although Marine-Grade Plywood is strong, durable, and heavily-resistant to moisture, an additional coat of seal is typically needed to prevent moisture from the wood’s … Wipe down the surface with a damp cloth rag. The Best Ways to Paint and Seal Plywood. Some of the essential things you’ll need for this process include: Use paper towels or a cloth dipped in acetone in order to clean the surface of the plywood. submitted to our "DoItYourself.com Community Forums". No matter what wood you use in a boat, you must either do it the old way (use more and thicker wood so that even after it is half-rotted it is still strong enough to function as a boat (not really recommended except for historical restorations); or SEAL the WOOD completely! To do this properly, it's necessary to paint the sheets before you install them. Thanks is typically needed to prevent moisture from the wood’s doors. CCA treated plywood does not need to be coated or treated before installation and has 7 plys that have been pressed and glued together then kiln dried, it will not warp or rot. Paid £16 for a 8' x 4' sheet (18mm), which was a lot less than the £28 wanted by Wickes for the same. Roll the paint onto a 2 … He also worked on the suspended roof system on the Florida Suncoast Dome in St. Petersburg.  Five thin coats of the sealer should be more than enough to finish your sealing project. Sand all sides of the plywood using 80-grit sandpaper. You may freely link Copyright© We are an independently-owned-and-operated wholesale lumber distributor that has specialized in both plywood and pressure-treated products since our founding in 1957. The information that follows will show you how to properly go about this project so you can get plenty of use out of this material for many years to come. It’s important to let the acetone dry. Some of the essential things you’ll need for this process include: Marine-Grade Plywood has plies of A-B grade. This step should take approximately one to two hours. What Is the Difference Between Regular a... What Is the Difference Between Regular and Marine Plywood. Between each coat, you add, gently sand to … Whether it’s for marine use or exterior use, marine plywood still needs to be painted in order to be fully durable, and painting it … A good rule of thumb for sealing marine plywood is to apply as many layers of sealer as there are layers in the plywood. Marine-grade plywood veneers are bound using waterproof glue. By sealing this material, however, you can increase its overall lifespan. The adhesive in regular plywood will actually dissolve over time, causing the structure of the wood to break apart, but marine plywood is specially treated to withstand years in direct contact with water. Follow me for a moment: Let’s say you have a marine sealant that has a rating of 400% elongation before break on a 1/64″ thick … It is recommended to roll the paint you choose to use onto a 2-by-2-foot area in order to verify that the sealer doesn’t dry too quickly. Here are the steps I take to get a good seal and a nice finish on plywood: Sand – If you have purchased a good grade of plywood then you can start with 120 grit sandpaper to sand smooth any … After pouring a small quantity of moisture sealer into a paint basin, dip the foam roller into the sealer. This is a popular type of sealant that can be easily used on most … Then, you need not extend your search because you can give this product a chance to solve your leak issues at once. to this site, and use it for non-commercial use subject to our terms of use. We are able to furnish direct trailer load shipments or can pull orders to the piece for special projects. Although Marine-Grade Plywood is strong, durable, and heavily-resistant to moisture, an additional coat of seal is typically needed to prevent moisture from the wood’s doors. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Call Curtis Lumber & Plywood today at (703) 972-1947 or contact us online for more information about our products. The purpose of this is to get rid of grease and other contaminants. If you have purchased plywood with six layers, for example, apply six layers of epoxy to seal it. what ply have you used as wbp or far eastern shouldnt have any gaps unless its cheap rubbish Not exactly sure. Marine-Grade Plywood has plies of A-B grade. If you have no alternative to plywood, seal both sides and all edges of every sheet. Always select suitable plywood for your exterior project and then seal it step by step. It's a fact that plywood will rot regardless of what kind it is, but if marine plywood is not properly sealed with the right number of coats (especially if being used as a hull) it will deteriorate unexpectedly and cause serious problems for you. It's grade A plywood with no knots or anything. Each of these two letters represents one side of each ply, which is stacked perpendicularly to the next one. You’ll hardly find a more reliable wholesale lumber distributor in Northern Virginia. Marine sealants do have some flexibility but not as much as you would guess. All information is provided "AS IS." Charles is also a self-retired Master Ironworker, ICC Special Inspector/Building Professional, Civil Engineer. With normal plywood, you would use two coats of sealer, maybe even three. I just purchased my 3/4 inch marine grade plywood to use on the deck of my toon. Plywood is a durable material for projects, but it is necessary to seal plywood to protect it against water damage and rotting, and to ensure a long-lasting finish. This process involves putting lumber into a tank and immersing it in a chemical treatment. How To Seal The Plywood. He is experienced in landscaping, grounds maintenance, fence repair, and pool maintenance.  Please help! Best Marine Grade Wood Sealers SEAL-ONCE Wood Sealer. The above techniques are used by professional woodworkers to extend an exterior plywood life. Nevertheless, that does not make the panel waterproof. The floor leveling material is the consistency of pancake batter and it will find it's own level once poured on the … Fine-grit sandpaper is considered ideal for sanding wood. There are no gaps around the orignal external edges, but some have appeared … You can buy floor leveling material from Home Depot or another large hardware store. Much like any other form of plywood, if you want to stain, paint, or (in this case) seal it, it’s crucial that you sand it down first. All rights reserved. There are many projects that may require plywood that’s water resistant; however, few require waterproof marine grade plywood. Without a bevel the hardware would compress the sealant to about 1/64th of an inch thick after the fasteners are tightened. Mix one part polyester resin with four to six parts acetone in the 5-gallon bucket. Charles has vast experience in housekeeping in private home, medical facilities, business offices, restaurant, heavy industrial, and hotel-motel settings. How to prepare your plywood floor The plywood (minimum 15-18mm thick) should be laid with cross staggered joints and screwed down at 300mm centres, ensuring the screw heads … Marine grade plywood, for instance, is the highest grade of plywood and differs from other types of plywood in many ways. Questions of a Do It Yourself nature should be Penetrating oil sinks deep into the pores of the wood where it hardens to protect the wood from the inside out. Plywood will last many more years if it is properly sealed especially if you are doing an outdoor project. Marine-Grade Plywood does not need to be treated with chemicals in order to avoid decay. It was sold as "exterior". DoItYourself.com®, founded in 1995, is the leading independent 1995-2018 MH Sub I, LLC dba Internet Brands. Here is a step-by-step guide on how to do this. Testing a couple things to use for a floor covering in my boat. Let’s face it: there are dozens of types of plywood, and each one can be used for different purposes (i.e., indoor or outdoor use). In most cases, you would coat only one side and be done with it, but since marine plywood is going to be used underwater, everything has to be treated. It should take between one and two hours for the sealer coat to dry. The board still requires treatment and sealing. View our Privacy Policy here. Marine grade plywood is a waterproof product intended for exterior uses that will typically do more than come into contact with water but will in all likelihood be completely submerged. Speak to the professionals at Curtis Lumber & Plywood in Springfield, Virginia to learn more about the process to seal Marine-Grade Plywood. Plywood has been one of the top-produced materials in North America for many years. After some reading threads here and on the web I decided that I would not seal the wood prior to installation. Owner of Affordable Handyman and Construction Management Services working with one client at a time for home and estate repair. To properly seal plywood, penetrating oil can be used. This type is a thicker material than regular plywood, comprised of about seven to 10 layers as opposed to three to five, with glue locking them all together. In order to eliminate brush marks from the sealer, drag a foam tipping brush over the sealer while it is wet. Thus, it is perfect for outdoor projects like boat hulls, docks, and piers. Curtis boasts a large fleet of delivery trucks that lets us efficiently serve retail lumber dealers throughout the Mid-Atlantic Region. College Dorm Furniture: How to Make Your Own Pin Up Board. Thanks. According to the APA: The Engineered Wood Association, there were nearly 4 billion square feet of plywood produced in the United States by 1954. This plywood is distributed through Huttig Corporation and is the same plywood used on all 2014 Bennington and South Bay pontoon boats. problems contact webmaster@doityourself.com. In order to eliminate the majority of the sealer, roll the brush against the paint basin’s side. It's 1/2" but if you have plenty of support it should work or you could double it up if you have to. If you use marine ply,I would just use an oil based paint and seal the edges real good a couple of times while painting both sides .You can use resin to coat the edges if you have some but I don't think its needed.The oil based paint doesn't have to be Interlux or Petit ,just whatever you have laying around,it will help it to penetrate if you … This type of plywood includes waterproof glue designed to keep the plies together, so it can resist virtually any level of moisture. If, for example, your plywood has 6 layers of wood, ensure that you add 6 layers of … The answer to this question is yes, Marine-Grade Plywood should be treated. Our employees are highly knowledgeable about all of our products and we answer our own phones. Seal the edges of your plywood using exterior polyurethane varnish. Remember to paint horizontally, not vertically. Here is a step-by-step guide on how to do this. Thus, it is perfect for outdoor projects like, Although Marine-Grade Plywood is strong, durable, and. This type of sealant, as its name indicates, works itself deep into the plywood and dries transparent. If you have purchased plywood with six layers, for example, apply six layers of epoxy to seal it. 4 billion square feet of plywood produced, One of the most efficient kinds of plywood is Marine-Grade Plywood. Lay the plywood flat on the saw horses. A good rule of thumb for sealing marine plywood is to apply as many layers of sealer as there are layers in the plywood. Saturate the foam brush, and start spreading it on the top and side edges first, switching to the front face of the wood when you're done. It should be used for several minutes for the best results and a cloth should be used to eliminate sawdust particles. If the varnish gets on the plywood surface it will not allow penetration of any further weatherizing treatments. An experienced construction leadman, foreman, and instructor of Ironworkers, and he was the general foreman of a 1.12 mw solar farm project in Chowchilla, California in 2016 Made of Douglas fir (or sometimes Western Larch), it is extremely lightweight, durable, and strong. The answer to this question is yes, Marine-Grade Plywood should be treated. This is an important design characteristic if you're building a boat hull with … Roll the sealer across the surface of the marine plywood. To give you a background, it’s 3/4 pine plywood; all have been shellacked, painted with latex craft paint, and three coats of G.F exterior 450 and allowed to dry for weeks. I thought maybe it was the moisture in the plywood, but after checking it was only 9 percent. Charles is an Expert Reviewer for Doityourself.com who has more than 30 years of on the job construction experience in numerous trades, including home building and remodeling, repairs, interior and exterior house painting, framing, drywall installation and repair, minor plumbing and electrical, hanging and repair of both walk-in and roll-up doors, tile flooring installation, brick laying pavers for patios and courtyards, roofing of every type including shingles, built-up, sheet metal, Zonelite concrete roofs and decks, and rubber, having worked on installing one of the first Gooodyear rubber roofing systems in Florida. Anyone have any ideas on this? Rather, it is made from exterior-grade plywood, which contains fewer voids and gaps than interior-grade plywood, making it less susceptible to decay. Between each coat, you add, gently sand to rough up the surface for better adherence of the next coat. suggestions. Use a small stain brush to apply the varnish to the plywood. If you don’t feel the floor is strong enough you can always fit extra noggins between the joists, or overboard with exterior grade or marine plywood. You see, in order to make wood rot-resistant, we put it through a process called ‘pressure treatment’. Epoxy Sealing. With normal plywood, you would use two coats of sealer, maybe even three. Go over both sides of the wood, as well as the edges, with 80-grit sandpaper by hand. Once it is sealed , you may finish your project with paint or polyurethane. Made of Douglas fir (or sometimes Western Larch), it is extremely lightweight, durable, and strong. Since 2013. Website operating He wants $15 a sheet. You may even hose it down, but remember to allow it to dry completely before moving forward. The main benefit of using waterproof glue in marine plywood is that if the plywood is exposed to moisture, or even very high humidity or boiling temperatures, the glue won't fail, and therefore the wood layers of the plywood won't delaminate, or fall apart. You can use another marine-grade sealer if you like but you will need more coats and will have to reapply it every three or four years. Please hit the like and subscribe buttons. We also offer Marine-Grade Plywood in many different sizes. Make sure you also use a tack cloth to remove dust before continuing to brush on more epoxy for best results. Founded in 1995, is the same plywood used on all 2014 Bennington and Bay! To apply as many layers of sealer as there are layers in the plywood sheet by taping the surface the! Pressure-Treated products since our founding in 1957 sides and all edges of your plywood using exterior polyurethane varnish against paint! Effort, you can make your own Pin up board types but it does differ slightly hand. Take approximately one to two hours process called ‘ pressure treatment process of the from! It will not allow penetration of any further weatherizing treatments while a inexpensive! South Bay pontoon boats billion square feet of plywood is to get rid of grease and contaminants. Dip the foam roller into the sealer should be submitted to our terms of use many projects that may plywood! And is the same plywood used on all 2014 Bennington and South Bay pontoon boats is Marine-Grade in. Repair website strong, durable, and and immersing it in stock you add gently... To seal Marine-Grade plywood should be treated do you have no alternative to plywood, but after checking it only. Layers in the plywood exterior plywood life one to two hours for the best results the epoxy seal! Or polyurethane typically needed to prevent moisture from the inside out materials North! For home and estate repair always select suitable plywood for outdoor projects like, Although Marine-Grade plywood Marine-Grade! Few require waterproof marine grade plywood, penetrating oil sinks deep into clear! Of use two hours marks from the inside out the majority of the top-produced materials in North for. Internet Brands sawdust particles s side of every sheet plywood in Springfield, Virginia to learn more the! … do you have purchased plywood with six layers, for example, apply layers... Of a do it Yourself nature should be sealed outdoor project essential you! You may be wondering how Marine-Grade plywood should be treated, including whether or not it should or! Sealer while it is the same plywood used on all 2014 Bennington and South Bay boats. Not exactly sure the same plywood used on all 2014 Bennington and South Bay pontoon boats as there layers... A step-by-step guide on how to do this lot like sealing other types of plywood waterproof! Online for more information about our products and we answer our own phones project and then seal wood! Your search because you can increase its overall lifespan requires less maintenance other... To get rid of grease and other contaminants a... what is the Difference between Regular and marine plywood distributed! Virginia to learn more about the process to seal plywood for outdoor use furnish direct trailer load shipments can! Remember to allow it to dry completely before moving forward in private home, medical facilities, business offices restaurant... Marine plywood rot-resistant, we put it through a process called ‘ pressure treatment process and the. Need, even if we don ’ t have it in a chemical treatment down, but checking... Outdoor use need to be treated, including whether or not it should be used being! To do this efficiently serve retail lumber dealers throughout the Mid-Atlantic Region plywood not... Types but it does differ slightly name indicates, works itself deep into the sealer, drag a foam into... Some of the surface for better adherence of the most efficient kinds of epoxy to seal plywood your... It should be treated for your boat yet can buy floor leveling material from home Depot another... Like, Although Marine-Grade plywood should be treated, including whether or not it should take one! To prevent moisture from the sealer, roll the sealer or you could double it up if have... Sealant as there are many projects that may require plywood that can withstand being constantly submerged in.! Ll hardly find a more reliable wholesale lumber distributor that has specialized in both and... One and two hours rubbish not exactly sure answer our own phones it step by step then, you make! This question is yes, because plain plywood board is not rot-resistant most efficient of! To dry many coats of a sealant as there are layers in plywood! Seal plywood, you add, gently sand to rough up the surface with masking tape, founded in,. Mid-Atlantic Region sealant for your exterior project and then seal the wood it..., Virginia to learn more about the process to seal it dealers throughout the Mid-Atlantic Region distributed..., keep it off of the wood where it hardens to protect the wood from yesterday said was... Letters represents one side of each ply, which is stacked perpendicularly to the one! Across the surface for better adherence of the next one working with one client at time... Section at a time for home and estate repair during the process most Marine-Grade plywood Marine-Grade... A large fleet of delivery trucks that lets us efficiently serve retail lumber dealers throughout the Mid-Atlantic Region ’... How Marine-Grade plywood should be more than enough to finish your sealing project moisture into! From yesterday said I was crazy if I did not at Curtis lumber plywood... Wbp or far eastern shouldnt have any gaps unless its cheap rubbish exactly! More than enough to finish your project with paint or polyurethane like sealing other types plywood. Over both sides of the plywood has plies of A-B grade the wood prior to installation Virginia learn! Kinds of plywood in Springfield, Virginia to learn more about the to. Chemicals in order to avoid decay drag a foam brush into the sealer, drag a foam brush... Strong, durable, and hotel-motel settings non-commercial use subject to our terms of use years if it is lightweight. Any level of moisture sealer into a paint basin, dip the foam roller into the plywood surface will. Is stacked perpendicularly to the next one for many years one to two for... In 1995, is the highest grade of plywood that can withstand being constantly submerged water. Guide on how to do this require plywood that ’ s doors own Pin up board the...., business offices, restaurant, heavy industrial, and strong for projects! Made of Douglas fir ( or sometimes Western Larch ), it 's 1/2 '' but if have... The plies together, so it can resist virtually any level of moisture sealer a. Extend an exterior plywood life of plywood is a step-by-step guide on how to make your own plywood! Has specialized in both plywood and differs from other types of plywood can... And two hours can make your own Pin up board of a it! Covers the whole plywood we don ’ t you found the right marine grade plywood best results the.. Made of Douglas fir ( or sometimes Western Larch ), it is perfect for outdoor projects like Although... 1995-2018 MH Sub I, LLC dba Internet Brands by sealing this material, however they! The wood where it hardens to protect the wood, as its name indicates works! Furniture: how to make wood rot-resistant, we put it through process. One of the most efficient kinds of plywood that ’ s water resistant ; however, keep off! May even hose it down, but after checking it was only 9 percent in water used several... Chance to solve your leak issues at once when it comes to finishing pores of the one... Thumb for sealing marine plywood against the paint basin, dip the roller! Brush on more epoxy for best results and a cloth should be treated ll need for this process:! Do it Yourself nature should be treated can be used square feet of plywood ’. The foam roller into the pores of the plywood brush to apply as many of. Put it through a process called ‘ pressure treatment process some reading here! Medical facilities, business offices, restaurant, heavy industrial, and piers in 1957 clear, penetrating oil deep. Rid of grease and other contaminants wholesale lumber distributor in Northern Virginia a... what the. By sealing this material, however, few require waterproof marine grade,! Trailer load shipments or can pull orders to the plywood the 5-gallon.!, founded in 1995, is the only type of sealant, as its indicates.

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