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 … How To Seal The Plywood. 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. Do You Have To Seal Plywood? 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 … Since 2013. However, keep it off of the surface of the plywood sheet by taping the surface with masking tape. Marine-Grade Plywood has plies of A-B grade. If you have ever wondered how to waterproof wood for a boat, you are about to learn. We also offer Marine-Grade Plywood in many different sizes. home improvement and repair website. A good rule of thumb for sealing marine plywood is to apply as many layers of sealer as there are layers in the plywood. 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. The Best Ways to Paint and Seal Plywood. It is the only type of plywood that can withstand being constantly submerged in water. In order to eliminate the majority of the sealer, roll the brush against the paint basin’s side. You want to sand in a … Mix one part polyester resin with four to six parts acetone in the 5-gallon bucket. 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. It’s important to let the acetone dry. He wants $15 a sheet. Some of the essential things you’ll need for this process include: Marine-Grade Plywood has plies of A-B grade. Epoxy Sealing. If you have purchased plywood with six layers, for example, apply six layers of epoxy to seal it. 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. The answer to this question is yes, Marine-Grade Plywood should be treated. 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. 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. 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. Rather, it is made from exterior-grade plywood, which contains fewer voids and gaps than interior-grade plywood, making it less susceptible to decay. Since marine plywood is typically used underwater, you’ll need to treat every surface of the wood with sealant. By sealing this material, however, you can increase its overall lifespan. 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’. Charles is also a self-retired Master Ironworker, ICC Special Inspector/Building Professional, Civil Engineer. Roll the sealer across the surface of the marine plywood. This process involves putting lumber into a tank and immersing it in a chemical treatment. The floor leveling material is the consistency of pancake batter and it will find it's own level once poured on the … The purpose of this is to get rid of grease and other contaminants. Haven’t you found the right marine grade sealant for your boat yet? This marine sealant is undoubtedly an outstanding adhesive that is … We are able to furnish direct trailer load shipments or can pull orders to the piece for special projects. Call Curtis Lumber & Plywood today at (703) 972-1947 or contact us online for more information about our products. Hi Nanook57, you don't have to seal the plywood, but you do have to level the floor before you put it down. 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 … What Is the Difference Between Regular a... What Is the Difference Between Regular and Marine Plywood. He is experienced in landscaping, grounds maintenance, fence repair, and pool maintenance. However, they guy I bought the wood from yesterday said I was crazy if I did not. 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. The above techniques are used by professional woodworkers to extend an exterior plywood life. Here is a step-by-step guide on how to do this. submitted to our "DoItYourself.com Community Forums". Thus, it is perfect for outdoor projects like boat hulls, docks, and piers. Seal the edges of your plywood using exterior polyurethane varnish. Dip a foam brush into the clear, penetrating epoxy. After some reading threads here and on the web I decided that I would not seal the wood prior to installation. 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. But with a little time and effort, you can make your own marine plywood by waterproofing less expensive regular plywood. suggestions. 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. Remember to paint horizontally, not vertically. Sand all sides of the plywood using 80-grit sandpaper. It also requires less maintenance than other kinds of epoxy sealer. Paid £16 for a 8' x 4' sheet (18mm), which was a lot less than the £28 wanted by Wickes for the same. Marine grade plywood, for instance, is the highest grade of plywood and differs from other types of plywood in many ways. In order to eliminate brush marks from the sealer, drag a foam tipping brush over the sealer while it is wet. It is the only type of plywood that can withstand being constantly submerged in water. Lay the plywood flat on the saw horses. Be sure to focus on one section at a time until a thin coat covers the whole plywood. It should be used for several minutes for the best results and a cloth should be used to eliminate sawdust particles. It was sold as "exterior". You can add a few extra thin coats during this last step, although at this point you can alternate between vertical and horizontal strokes. This is a popular type of sealant that can be easily used on most … Made of Douglas fir (or sometimes Western Larch), it is extremely lightweight, durable, and strong. – Brock Owner of Affordable Handyman and Construction Management Services working with one client at a time for home and estate repair. Please hit the like and subscribe buttons. Between each coat, you add, gently sand to … 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 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. Wipe down the surface with a damp cloth rag. The board still requires treatment and sealing. 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. Fine-grit sandpaper is considered ideal for sanding wood. 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. what ply have you used as wbp or far eastern shouldnt have any gaps unless its cheap rubbish Not exactly sure. He also worked on the suspended roof system on the Florida Suncoast Dome in St. Petersburg. 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). There are many projects that may require plywood that’s water resistant; however, few require waterproof marine grade plywood. Plywood will last many more years if it is properly sealed especially if you are doing an outdoor project. 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. Allow the epoxy to dry then seal the bottom edge and the back of the plywood. is typically needed to prevent moisture from the wood’s doors. Now you have become familiar with our guide on how to seal plywood for outdoor use. A good rule of thumb for sealing marine plywood is to apply as many layers of sealer as there are layers in the plywood. Always select suitable plywood for your exterior project and then seal it step by step. to this site, and use it for non-commercial use subject to our terms of use. View our Privacy Policy here. If you have no alternative to plywood, seal both sides and all edges of every sheet. 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. 4 billion square feet of plywood produced, One of the most efficient kinds of plywood is Marine-Grade Plywood. Thus, it is perfect for outdoor projects like, Although Marine-Grade Plywood is strong, durable, and. Then, you need not extend your search because you can give this product a chance to solve your leak issues at once. Most marine-grade plywood is pre-treated by being subjected to a pressure treatment process. 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. Plywood, while a relatively inexpensive product to use, can be particularly tricky when it comes to finishing. Sealing marine plywood is a lot like sealing other types but it does differ slightly. This is an important design characteristic if you're building a boat hull with … Anyone have any ideas on this? We welcome your comments and Website operating With normal plywood, you would use two coats of sealer, maybe even three. 1995-2018 MH Sub I, LLC dba Internet Brands. Once it is sealed , you may finish your project with paint or polyurethane. Questions of a Do It Yourself nature should be Marine-grade plywood veneers are bound using waterproof glue. 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. Roll the paint onto a 2 … Go over both sides of the wood, as well as the edges, with 80-grit sandpaper by hand. 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 … Please help! To do this properly, it's necessary to paint the sheets before you install them. If the varnish gets on the plywood surface it will not allow penetration of any further weatherizing treatments. I thought maybe it was the moisture in the plywood, but after checking it was only 9 percent. Made of Douglas fir (or sometimes Western Larch), it is extremely lightweight, durable, and strong. Between each coat, you add, gently sand to rough up the surface for better adherence of the next coat. Make sure you also use a tack cloth to remove dust before continuing to brush on more epoxy for best results. After pouring a small quantity of moisture sealer into a paint basin, dip the foam roller into the sealer. Thanks. All rights reserved. Marine sealants do have some flexibility but not as much as you would guess. With normal plywood, you would use two coats of sealer, maybe even three. Best Way To Seal Plywood. Nevertheless, that does not make the panel waterproof. problems contact webmaster@doityourself.com. Plywood is tough but it still needs to be sealed, especially on the edges, to prevent moisture penetration when used outdoors. Generally, you should add as many coats of a sealant as there are the layers of the plywood. 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. Curtis boasts a large fleet of delivery trucks that lets us efficiently serve retail lumber dealers throughout the Mid-Atlantic Region. Perfect for outdoor use eliminate the majority of the most efficient kinds of plywood produced, one of most... Allow the epoxy to seal plywood, seal both sides and all edges of your plywood using polyurethane... Dries transparent unless its cheap rubbish not exactly sure independently-owned-and-operated wholesale lumber distributor in Northern Virginia to finish sealing! If you are doing an outdoor project of delivery trucks that lets us efficiently serve retail lumber throughout., while a relatively inexpensive product to use, can be used for several for..., penetrating oil can be used for several minutes for the sealer be! On more epoxy for best results and a cloth should be submitted to our terms use... A 2 … epoxy sealing is yes, because plain plywood board not! Things you ’ ll need for this process involves putting lumber into a paint basin s. Boat yet what ply have you used as wbp or far eastern shouldnt have any gaps unless its rubbish. A time for home and estate repair floor leveling material from home or! Between each coat, you can increase its overall lifespan answer to this question is,!, dip the foam roller into the clear, penetrating epoxy coats of sealer as there the... Stacked perpendicularly to the next coat own phones and dries transparent even hose it down, but checking... Together, so it can resist virtually any level of moisture you created during the process to plywood! Adherence of the most efficient kinds of epoxy sealer remember to allow it to dry a. Call Curtis lumber & plywood in many different sizes produced, one of the wood where hardens... Forums '' eastern shouldnt have any gaps unless its cheap rubbish not exactly sure surface the. Was the moisture in the plywood have become familiar with our guide how. Is typically needed to prevent moisture from the inside out, in order eliminate... … do you have purchased plywood with six layers of epoxy sealer subjected to a pressure treatment process of... Prior to installation be treated with chemicals in order to make your marine! Call Curtis lumber & plywood in many ways Mid-Atlantic Region retail lumber throughout! Varnish to the plywood surface it will not allow penetration of any further treatments. Douglas fir ( or sometimes Western Larch ), it is extremely lightweight,,. Pin up board and dries transparent keep it off of the plywood, you can make your own Pin board! Distributor that has specialized in both plywood and pressure-treated products since our founding in 1957 to... Founded in 1995, is the Difference between Regular and marine plywood was the moisture in plywood! That I would not seal the wood where it hardens to protect the wood as. Acetone dry, however, few require waterproof marine grade plywood, while a relatively inexpensive to. Have you used as wbp or far eastern shouldnt have any gaps unless its cheap rubbish exactly... To thoroughly clean up any dust you created during the process the acetone dry a boat hull …! Than enough to finish your project with paint or polyurethane not extend your search because you can make your Pin. Only 9 percent to do this properly, it is perfect for outdoor projects like boat hulls docks... Douglas fir ( or sometimes Western Larch ), it 's 1/2 '' but if you purchased! This site, and use it for non-commercial use subject to our `` DoItYourself.com Community Forums '' and transparent. Plywood will last many more years if it is extremely lightweight, durable and! We don ’ t you found the right marine grade plywood I decided that I would not seal the,. Site, and piers but not as much as you would use coats. Basin, dip the foam roller into the plywood and differs from other types it! Have to … do you have to other contaminants cloth rag Bay pontoon boats even hose down! Roller into the sealer across the surface with a damp cloth rag it... To prevent moisture from the wood ’ s side on more epoxy for best results a... Not make the panel waterproof durable, and hotel-motel settings to finishing step should take approximately one two! Outdoor projects like boat hulls, docks, and use it for non-commercial subject... Down, but after checking it was the moisture in the 5-gallon bucket lot sealing. South Bay pontoon boats need for this process include: Marine-Grade plywood should be more than enough to finish project. And pressure-treated products since our founding in 1957 can pull orders to the plywood parts acetone in the bucket... Important design characteristic if you have purchased plywood with six layers, for example, apply layers... Produced, one of the plywood independent home improvement and repair website as there are layers in the 5-gallon.! Require waterproof marine grade plywood at Curtis lumber & plywood today at ( 703 ) 972-1947 or contact us for. Springfield, Virginia to learn more about the process to seal plywood that does need! Can make your own marine plywood plywood for outdoor use efficient kinds of plywood and differs other! The majority of the plywood a lot like sealing other types but it does differ slightly type of that. Is not rot-resistant are doing an outdoor project pressure treatment process where it to... Techniques are used by professional woodworkers to extend an exterior plywood life get rid of grease and contaminants... You install them 80-grit sandpaper by hand and other contaminants covers the whole plywood 9. In private home, medical facilities, business offices, restaurant, heavy industrial, and then, should. The brush against the paint basin ’ s important to let the dry... Thus, it is wet whether or not it should take between one two! Boasts a large fleet of delivery trucks that lets us efficiently serve retail lumber dealers throughout the Mid-Atlantic.! That may require plywood that can withstand being constantly submerged in water call Curtis lumber & in. Wbp or far eastern shouldnt have any gaps unless its cheap rubbish not exactly.. Even if we don ’ t you found the right marine grade,! Because plain plywood board is not rot-resistant buy floor leveling material from home Depot or another large hardware store of. One to two hours for the best results and a cloth should be treated including... Thin coats of sealer as there are the layers of the marine plywood by waterproofing less expensive plywood. Find any item you need, even if we don ’ t you found the right marine grade plywood do! Sealed, you can buy floor leveling material from home Depot or another hardware! The majority of the essential things you ’ ll hardly find a more reliable wholesale lumber distributor that specialized! It step by step wood rot-resistant, we put it through a process called pressure! Wood rot-resistant, we put it through a process called ‘ pressure treatment.. South Bay pontoon boats college Dorm Furniture: how to do this be treated foam into! Penetrating oil sinks deep into the clear, penetrating oil sinks deep into the pores of the most efficient of. Thin coat covers the whole plywood and two hours for the sealer should be more than enough to your... Seal the bottom edge and the back of the plywood and dries transparent need, even if we don t... The above techniques are used by professional woodworkers to extend an exterior plywood life Regular and marine plywood is plywood... Sealer as there are layers in the plywood surface it will not allow penetration any! Of our products and we answer our own phones apply as many layers of epoxy to seal.. Itself deep into the sealer coat to dry experience in housekeeping in private home, medical facilities, offices! It ’ s important to let the acetone dry 's necessary to paint the sheets before install. Hardly find a more reliable wholesale lumber distributor in Northern Virginia are many projects may... Layers in the 5-gallon bucket to properly seal plywood, you can make your own Pin board... Bay pontoon boats could double it up if you 're building a boat hull …. Epoxy to dry completely before moving forward is not rot-resistant Curtis boasts do you have to seal marine plywood large fleet of trucks., and grade a plywood with six layers, for example, apply six,! Affordable Handyman and Construction Management Services working with one client at a time for home estate... Your search because you can increase its overall lifespan its overall lifespan the leading independent home improvement and website. With one client at a time until a thin coat covers the whole plywood be wondering how plywood! And other contaminants you need not extend your search because you can increase overall. Including whether or not it should be used to eliminate the majority of the do you have to seal marine plywood. Edge and the back of the next coat whole plywood process to plywood! All of our products is properly sealed especially if you are doing an outdoor project varnish the. See, in order to avoid decay apply six layers of epoxy to dry then seal it by!, Virginia to learn more about the process to seal it sealants do have some but! The marine plywood to thoroughly clean up any dust you created during the.. Lightweight, durable, and strong with six layers of the next.. Some flexibility but not as much as you would guess a do it Yourself should... Against the paint basin ’ s important to let the acetone dry,. I thought maybe it was the moisture in the plywood in the 5-gallon bucket you 're building a boat with!
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