Made of Douglas fir (or sometimes Western Larch), it is extremely lightweight, durable, and strong. The sealer acts as a moisture barrier layer to prevent peeling and excessive absorption of vehicle from topside primers, paints, or varnishes. 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. 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. However, it is also suitable for marine plywood. Its exposure durability rating is EXTERIOR and the glue used is a water resistant structural adhesive. Re: Seal or Don't Seal Marine Grade Plywood Decking? suggestions. Nevertheless, that does not make the panel waterproof. Then, use a tack cloth to thoroughly clean up any dust you created during the process. Coosa Composites manufactures structural panels made of high-density, polyurethane foam reinforced with layers of fiberglass. A good rule of thumb is to add as many coats of sealant as there are in the plywood. B-B: This grade of marine plywood is also known as face-back Marine plywood. Nevertheless, that does not make the panel waterproof. 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. But, as you'll see below, for many applications, including bedding deck hardware, another product would be a wiser choice. The face veneers of the marine panel are usually of "A" or sometimes a "B" grade so that there are no exposed knot holes or other defects which could weaken the panel. Poor quality plywood. A-B grade Marine plywood is stronger and heavier than A-A. This item is a Store Exclusive and is available for purchase in select stores only. Wood used on boat docks, decks, and … Not sure which kind of wood to use on your next project? However, usually the materials in the wood are not enough to block all moisture from the wood. We stood the plywood in Smiths Clear Penetrating Epoxy Sealer dyed blue. It is also called a medium density board or MDB. While concrete will break down over time, a plywood deck will break down much quicker, causing you a headache sooner rather than later. … I have pared down... Hello! 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. It is also called a medium density board or MDB. Often, it’s even worse. I didn't see if anyone else posted and I think TG is away for a while, so I... Looks like it's a hole from an appliance vent that someone put spray foam .... College Dorm Furniture: How to Make Your Own Pin Up Board. It is almost always necessary to coat the marine plywood in additional sealer to block all moisture from … Sealant; Paintbrush; Marine plywood is different from other plywood. Marine plywood is a great sheet material that can be easily cut using both hand saws and basic power tools. Anyone have a link to the thread or sealer recommendations they can pass along? Follow the above procedure by rolling the sealer across the marine plywood. Much like any other form of plywood, if you want to stain, paint, or (in this case) seal … MARINE Premium wood sealer and dock stain is specifically formulated to provide the highest level of protection for wood structures, situated near open water. Plywood decks are an integral part of many homes and can be found in all kinds of states. This is an oil that as the name implies penetrates the surface of the wood … problems contact webmaster@doityourself.com. Behr Premium Solid Colour Waterproofing Stain & Sealer - Tintable White No. However, once the sealer is applied to the plywood and dried, you will want to wipe the wood down with a damp … – April 12, 2019. The 9 best marine plywood alternatives are as follows: Fiberboard (Medium Density Board) The sealer protects by wrapping plywood in a plastic water-resistant covering. 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. Other species of hardwood may also be used for marine plywood, usually in the Marine (boating) industry. Sealing Marine Plywood 09-18-2011, 19:31. Some decks are immaculate and waterproofed while others…well, they just look awful. Given how often this dock gets wet, we were happy to find a product made for wood boat docks. home improvement and repair website. 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