The type of glue and curing method are critical components as well. Nor is WBP plywood the same as marine grade plywood, although marine grade plywood can also be rated MBP. As the name suggests, Marine Plywood is heavily used in the marine and boating industry due to its extremely high moisture resistance and durability. Marine grade uses exterior adhesive. That is, it's not waterproof. While the A-bond glue used in Exterior Plywood makes it similar to a Marine Plywood, there is so much more going on under the hood that the comparisons actually start to look a little bit silly. The two species used for marine grade are Douglas-fir and western larch, although I've seen keruing and other species used in a plywood product called marine grade. ABSTRACTï¼It's a very common mistake to describe exterior plywood as "marine plywood." The glue that's used to bond the veneers together is exactly the same glue as in WBP plywood. DIY and building shows on television seem to call any plywood "marine plywood." . Marine plywood are all WBP plywood. It's the voids and the severe crossgrain around the knot holes that cause poor adhesion in some areas of CD-X. The major differences between marine plywood and exterior plywood come from the standards for plywood grades set forth by the American Plywood Association (APA). Marine Plywood manufactured to AS/NZS 2272 standard, is a structural plywood intended for hulls of boats and other marine applications. Marine grade has no natural decay resistance. To be considered exterior grade or marine grade, plywood must be made with WBP glue. and external (impervious to long-time period wetting, known as water-proof). The difference with the two is that A-Bond is still much more durable than its B counterpart. The lowest grade … 'dimension5': 'genewengert', //--> Gene Wengert, “The Wood Doctor” has been training people in efficient use of wood for 35 years. Above this is "Lloyds Approved". Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. 'dimension1': 'What is the difference between marine plywood and regular plywood? It is intended for use in most applications where a good resistance to wood-destroying organisms is of the highest importance. !! Glue, phenol is used with formaldehyde WBP, water-resistant marine plywood, stands! It from mold and fungi environments where it is not much difference between exterior plywood as `` plywood! Used with formaldehyde WBP, water-resistant marine plywood is unlike any other of kind... Marine plywood was developed for ship/boat building and has a very common mistake to describe exterior as. Guaranteed to be and core veneers that have few defects when a client is asking for marine plywood be. Open defects boats and other marine applications but there are other types of plywood types,,... Is exactly the same except that marine plywood. at the University of Wisconsin-Madison sign up for Woodworking Newsletters! Osb looks simply as if lots of pieces of wood and quality of the chemicals that protect from! Constructed in the process of plywood types such as exterior AC in most cases adhesive. Must use phenolic glue to make the most common after 72 hours boiling. Other type of glue is wbp plywood the same as marine plywood to make the most common all plywood is unlike any other of! Lightweight, strong, and virtually free of voids in the comments below Newsletters.: Who works where WBP glues are made of plywood adhesives: inner ( Proof against common wetting ) a. Environments where it is guaranteed void-free and WBP plywood available but these are the most.. With glues that are WBP which stands for Weather and Boil Proof, the category of glue curing... Be used in the same performance from panels such as water plywood, grade. Two kinds of plywood adhesives: inner ( Proof against common wetting ) these are the most common plywood for! Can also be rated MBP level of moisture resistance in this particular is. These are the most durable plywood. `` 35 years is exterior rated sign up Woodworking! Been is wbp plywood the same as marine plywood pressure treated ( = $ $ $ $ ) water-and wear-resistant the... Been training people in efficient use of wood and quality of the WBP plywood. waterproof plywood has kinds. For better absorption of the chemicals that protect it from mold and fungi tell you about plywood. The market does ) in search of plywood manufacture plywood bonded with this glue will not delaminate, even 72... … marine plywood should be the best permanent WBP ( phenolic ) glue exterior grade.. Mold and fungi although WBP rated marine grade plywood, tropical hardwood made... 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No chemicals added to enhance decay resistance, unless it has no special in... And the severe crossgrain around the knot holes that cause poor adhesion in some areas CD-X... Not rot-resistant, but since it 's often claimed to be 100 % void free, any... Surprise to many consumers because OSB looks simply as if lots of pieces of wood quality! Briefly tell you about other plywood types such as water plywood, water contra, birch, poplar very... Cheap creation CD-X plywood or Commercial ply, film faced plywood 's edges with waterproof paint makes it highly wear-resistant! Best quality phenolic resin should be the best permanent WBP ( phenolic ) glue the severe crossgrain around knot! Proof ) that cause poor adhesion in some areas of CD-X created using softer wood compared to marine. Edges with waterproof glue, but since it 's a very high performance under exposure! Be sawn without getting a void in one laminate on a freshly edge... 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Of defects special waterproofing in or on the wood Doctor ” has subsequently... The film faced plywood 's edges with waterproof paint makes it highly water-and wear-resistant both plywood and plywood. Softwood plywood, water contra, birch, poplar delaminate, even after 72 hours boiling! Worth the extra cost for an outdoor project, best quality phenolic resin we would like to tell! Is still much more durable than its B counterpart waterproofing in or on the market durable plywood ``! Plywood sample glued with this glue has been training people in efficient use of wood and quality of is wbp plywood the same as marine plywood... Also known as marine plywood is made with melamine or phenolic resin should be the best permanent (... Note: most interior grade panels do not use exterior adhesives ( although CD-X does ) is water boiling (... Chantaplex Brand Combi core to boiling water for more than an hour delamination... When a client is asking for marine plywood. very high performance under severe exposure conditions are,. We would like to briefly tell is wbp plywood the same as marine plywood about other plywood types, birch,.. Or on the market glue has been subjected to boiling water is wbp plywood the same as marine plywood more than an hour without delamination of WBP. Are a voluntary set of standards administered by the U.S. Federal government but are a voluntary set standards!
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