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";s:4:"text";s:17850:"Think it wouldn't (couldn't) be feesable to bring it over here, unless the manufcturer has a distributor.... Powered by vBulletin® Version 3.8.8 Beta 1. Made entirely of Douglas Fir or Western Larch, marine-grade is one of the highest designations which can be given to a piece of plywood and is considered to be "premium." Thats TUFNOL, not the board for trailer beds which is as far as i can tell TUFNOL faced marine ply. OSB is now more reliable than most marine plies, and cheaper. Marine Plywood . Building codes recognize both plywood and OSB to be alike in their properties and use the phrase \"wood structural panel\" to describe them.However, plywood subfloors are stiffer than OSB by about 10%. Better to pay a bit more and be certain than take a risk on cheaper Chinese ply of unknown pedigree. Marine Plywood is made with glues that are WBP which stands for weather and boil proof. : and leave some gaps and let the sub-floor / cabin bilge space breath ... before I go buying ply of any kind what would downsides of scaff boards be (I think I would treat them with some sealant unlike that chap who did these)...??? Hydrotek marine Meranti is manufactured with more ply’s than traditional marine plywood produced in North America to ensure both stability and strength. Breathable membranes only work if the "other side" is well ventilated. Stocking sizes 6mm 4x8 9mm 4x8 12mm 4x8 15mm 4x8 18mm 4x8 The top veneer layer on both sides is “A” grade, providing for an extremely smooth surface, without voids, to apply the fiber overlay. Comments? I was thinking of using it simply as a substitute for bituminous felt underlay by soaking it in black bitumen paint, as follows: The layers of the cake will be : Hull >> scraped and sanded original blacking >> red metal oxide primer >> bilge paint (this is point Im currently up to) >> 3mm breather membrane folded over a couple of times soaked in black bitumen paint [*] >> class A engineering bricks 65mm solid (got hold of bargain seconds at £120 for pallet of 440 !!) should be reasonably balanced but will may need to have fewer bricks on port side...tried doing all manner of calculations then decided it would be much better to built up and leave access and see what its like when done and then remove/add more ballast accordingly ? is [***] also going to form a moisture trap - this time between the top of the ply and the cabin ? The A-B grade means that the A side does not allow too many defects where the B side allows for more defects. They haven’t been repaired, and the flaws can be a little larger and more noticeable. This is construction grade Marine Plywood so not suitable for boat building. C-grade plywood: A little lower down in quality, C-grade plywood has some knots throughout its sheets, up to 1.5 inches in diameter. B grading means that the wood may have some knots, but no knotholes. All content remains the copyright of its respective owner. That is, it's not waterproof. Offering few to no core voids, more plies, and a competitive price, Aquatek is a lower cost alternative to … For anyone looking into this in the future, I rang around today and found the price. Waterproofing Plywood: 3 Ways to Protect Plywood Plywood is an excellent material that is used in different types of construction. Plywood Core Information Hardwood plywood cores are the layers between the hardwood or decorative softwood face and back veneers. The difference between the two is that marine plywood is supposed to void free, just as John O points out. It is sold in two different grades A-A and A-B. Here's mine - you're determined not bodge this, aren't you! plywood ba o plyboard. Higher end melamine can last between 10-20 hours in the boil test. Unless it`s breathable one assumes it may cause additional condensation in my opinion so not blue/black plastic visqueen. Or else you will have to alter the ballast after you have fitted out. I think the idea is that it prevents condensation caused by any bilge water condensing on the underside of the floor and also to provide a vapour barrier between any bilge water and the accommodation. This is what I would do (So no guarantee of anything) I would put down some tanalised bearers so you have everything nicely divided up into for example 2` x 2` squares then lay the floor in squares of Sterling OSB on that so that you can get at the bottom, I wouldn't bother with membranes, insulation or anything else. The glue for marine plywood should be the highest quality permanent WBP (phenolic) glue. Have you got a link to the MeraForm? You can adjust your cookie settings, otherwise we'll assume you're okay to continue. Melamine vs Phenolic Resin. Canal World accepts no responsibility or liability for any user submitted content. WBP plywood made with melamine glue rather than phenolic resin can maintain lamination in boiling water for between four and eight hours. Marine plywood can also be used in construction. Phenolic plywood is considerably more resistant (24-72 hours). Shuttering plywood is suitable for concrete shuttering, site hoarding, roofing or flooring. Several aircraft builders use marine grade plywood in aircraft construction. Sound like an exceptionally fine flooring job. Structural plywood can be both A and B-Bond type. pero wag ka mag alala. goes? It's easy! forming a moisture trap with condensation. Not sure how much good it does but for the cost it seems a good idea. According to marine plywood standard BS 1088, the thickness of face/back veneers for multi-ply construction should be 1.3 to 3.8 mm. All I can say is that the phenolic floor in my Ifor Williams is nowhere near indestructable! the Douglas fir wbp exterior grade ply is strong and stable and makes a good floor but try to get a good face one side. October 29, 2018 in Boat Building & Maintenance. How's about you make up for the 10mm gap above the bricks by leaving some gaps between them too? Marine Plywood. A sheet can cost $10 to $50, as opposed to the cost of marine plywood, which ranges from $70 to over $200 a sheet. The product you describe sounds like Tufnol or similar and it is far more expensive that £80 plus VAT for an 8 x 4 sheet. Someone clever should be along soon with experience of the material but post a link if you can. I do like the sound of your damp proof membrane but could that yield its own problems ie does normal marine ply allow some 'breathing' so any water accumulating from say condensation can then evaporate and escape. Marine plywood can be used for all the jobs which can be done by exterior plywood . Our NB bilge looks dry as a bone (touching copious amounts of wood). Marine-grade plywood, often simply called marine plywood, is not what it's often claimed to be. Some vehicle trailer manufacturers use it for parts of trailer beds. The resin-soaked fiber overlays are applied with heat and pressure, forming an extremely strong, extremely flat and extremely smooth engineered wood product that is waterproof. It is available from aircraft supply companies. Thanks all. General exterior plywood is intended for indoor or outdoor application where resistance to weather/water is required . sasagutin natin yan dito sa videong ito. Usually boats list towards the side where there is no passageway. Ex Tom pudding tug HATFIELD. 6MM 1/4" x 12 x 12 Euro Color Ply Phenolic Plywood, Film Faced with Baltic Birch Core (Black) 4.5 out of 5 stars 2. Did a search but came up blank other than an Indian company but no product info. Here, see photo 3, - https://www.gumtree.com/p/wood-timber/18mm-8x4-phenolic-plywood-plywood-sheets-plywood-ply/1318735108. And a trap at the rear for checking for water in the bilge. Incorrect understanding: Some people incorrectly think film faced plywood as marine plywood . My 20 year old ply floor is good as new despite a central heating leak. Exterior Plywood battle. if using ply make sure you have a wide bearing where two sheets join. is [**] necessary, or even a good idea ? Marine plywood and exterior grade plywood both use the same glue. It is also easier to find. So leave some access to the underfloor. Both face and inner plies are constructed from whole piece, color matched, Meranti or Keruing veneers. The requirement is listed under European plywood standard EN 314-2 Plywood – Bond quality – Requirements Bond Class 3: Exterior conditions [Reference 1 ]. Premium Marine and Phenolic Plywood PH. WBP glues are made with melamine or phenolic resin. Plywood Deck Boards (Buffalo or Similar) Plywood Phenolic Faced: Priced from £46.26 Phenolic Faced Plywood Deck Boards Brown In Colour For Trailer and Lorry Decking Available in 2 Thicknesses 12mm and 18mm both 2440mm x 1220mm: CLICK IMAGE and choose the thickness you require from the drop down menu: From £55.51 inc vat [ View] mahirap talaga yang tanong mo. Not a clue here. I think you should be good with Phenolic ply. SOmeone has told me the phenolic is heavier. Exterior plywood came on the scene in 1934 with the development of a waterproof adhesive. ask any farmer with an Ifor williams trailer! Good spot ('Builderdepot' was going to be my source for the marine ply , which they have on for £60, plus £55 for delivery oop north). This plywood is composed of birch and/or spruce layers with phenolic film coating.It's resistant to wear and chemical products.Production conforms to strict quality standards.Gluing process of layers complies with standard BFU 100, EN 314-2 / class 3, exterior. My floor is Stirling OSB, 30 years old and as good as the day it was laid. Opinions from all very much welcomed !. It is a good-quality, hardwood plywood made with waterproof glue, but since it's not treated with chemicals it is not rot-resistant. Going to lay floor in cabin - Was going to put BS1088 18mm Marine Ply... but found source of Phenolic Ply ('MeraForm Smooth Film Faced A/A Ext') thats cheaper. tufnol is very expensive,(and heavy) and the trailer deck board is very expensive compared to marine ply, and certainly not indestructible. http://www.builderdepot.co.uk/18mm-x-1220mm-x-2440mm-film-faced-phenolic-plywood.html?gclid=EAIaIQobChMI69WnlOqs3gIVRTPTCh2cLAOiEAYYASABEgJ3oPD_BwE. Leecraft BK-2 Blank Phenolic Sheet. A 4 x 4 sheet of 15mm Tufnol Whale is about £265. The problem I see in recommending a good solution is that the problems will start showing up 5 or 10 years down the road by which time the boat has changed hands and the original construction of fit out decisions forgotten. Tread carefully now, because there's all kinds of quality of plywood out there and picking the wrong one now will be hard to undo later. Its a very shallow underfloor space not to be ventilated. There are a lot of different types of this film faced ply on the market. Overall, marine-grade plywood is developed and used for places that have a lot of exposure to water, why it has the name that it has. The best choice depends primarily on the intended use, but budget can also be a consideration. is [*] necessary, of would simply doing another coat of bilge paint be sufficient ? ... surely less of an issue that breather memb underneath ? I have no experience of NBs but my experience with lumpy water boats with keel stepped masts is that there is always water in the bildge. Have you worked out where you do not need ballast, like where the calorifier, stove, washer, etc. Nice prep on the floor but I notice that there is still no cross ventilation gaps. However was planning different usage. Sassy Lass, Our shareboat floor was chipboard and failed in the bathroom do to a leaky loo water pipe. This page uses frames, but your browser doesn't support them. Both MDO and HDO are hardwood plywoods with a resin soaked fiber overlays between the veneer layers and on both surfaces. In 7 years my cabin floor has not been subjected to any significant amount of water from any source, am I doing something wrong? Question though is do board think phenolic would be worse/same/better for use as floor lining ...? Or one day you will wonder what is happening under the floor and you will have built the entire fit out on 8X4 sheets of ply and you can't get the b******** up. 00. I kind of doubt it. Agree with Tony w.r.t. Opinions from all very much welcomed ! You've done a great looking job with that floor, Sassy. Thus, theoretically plywood, aluminum and steel are interchangeable in a design based solely on the premise that the planking can be bent to shape without distortion. For this use would it be inferior / just as good / better ? Lower quality melamine plywood can sustain 4-8 hours boiling without delaminating. The phenolic board is £80 plus Vat for a 8x4ft sheet of 18mm, The Marine ply is £40 all in. oo. Exterior grade is a recognised structural timber. The difference with the two is that A-Bond is still much more durable than its B counterpart. Virtually free of any core voids, high quality core veneers, and Phenolic resin reduces the chance for the panel to delaminate. Hydrotek marine Keruing is manufactured with more ply’s than traditional marine plywood produced in North America to ensure both stability and strength. Obviously the construction is entirely different and details are not furnished in the plans for building in all three materials except in very limited cases. going to cut ply sheets as 8' x 2' to lay one on each bearer. - would it be better to allow the ply to breathe ? Same is true of exterior grade. The original and best came from Scandinavia and was based on birch ply core, we used it to make moulds for precast concrete and it stood up to multiple castings. FWIW I found that Rugby Boat Builders had fitted a house type damp proof membrane over the floor bearers and under the actual floor. If it formed on the top side it means the floor or the gap between the floor and membrane were ventilated to a degree, otherwise water vapour could not have got in there. For what I am using it for I am going with the marine ply, and have to treat it, but it would have been a bonus not having to treat the phenolic. https://www.gumtree.com/p/wood-timber/18mm-8x4-phenolic-plywood-plywood-sheets-plywood-ply/1318735108. The best phenolic glue can be regarded as essentially permanent adhesives and are used in the higher grades of Marine Plywood. Interesting you mention breather membrane as Ive just bought some !. I think buffalo board, hexaboard is overkill but its only marginally more than marine ply. FREE Shipping on orders over $25 shipped by Amazon. No unsupported joins and smaller size sections if ever have to take up again.... think you might be right about membranes and insulation ... A completely different tack would be scaff boards !! Marine plywood is usually made of Douglas Fir. - Im learning a lot. the 'bays' in photo above are 2' wide. This structural marine panel is made to the slightly less stringent specification 6566. Phenolic coated ply would be good for fire resistance and hard wearing but water resistance is one of the key properties you are after. This post is part of Plyco’s Guide to Marine Plywood and highlights the important differences between Marine and Exterior Grade Plywood.. It’s one of our most commonly asked questions regarding Marine Plywood.Without clear information, it can be extremely difficult to choose a side in the Marine Plywood vs. By Powered by Invision Community. It does not comply with BS-5268. Exterior Grade vs Marine-Grade. Contact us now! Best Phenolic faced ply is Buffalo board but expensive. From building homes to creating decks to crafting particular items, plywood is relatively inexpensive, durable, and comes in different types that are flexible for your needs. Regular plywood is much less expensive than marine plywood. Sign up for a new account in our community. I would be worried that a breathable membrane would allow condensation to form on the underside of the floor if any water were in the bilge. All content remains the copyright of its respective owner. I'd go for it. In reality, marine grade is generally just nicer but it depends on the grade. if condensation formed on the underside of the plastic it would also form on the metal baseplate, hull side and framing. $15.00 $ 15. PHENOLIC PLYWOOD. According to www.turi.org1, about 64% of the formaldehyde produced worldwide is used in plywood or other wood products such as particleboard. Some of the far eastern stuff is really not really designed for long life as you can see from the depth and make up of the layers. Overlaying Colors Available: Dark Brown, Light Brown, Green, Black, Red. The core of the panel will influence the properties of the plywood panels such as water resistance, stability, strength, flatness, screw holding ability, weight, and cost. Today, builders can choose from several types of exterior plywood. will try to lay bricks leaving some gap channels. Higher grade melamine plywood can withstand boiling water for 10 to 20 hours. You definitely do not want to use anything as nasty as CDX. Get it as soon as Mon, Feb 22. You need to be a member in order to leave a comment. ano mas maganda. Phenolic Plywood is common Eastern European or Scandinavian Birch plywood (EURO Birch or Baltic Birch) bonded with waterproof phenol resin adhesive and overlaid on both sides with the phenol film (grade F/F). Prices also look very reasonable, I replaced the bed of a trailer some years ago and the stuff was a small fortune. There is a phenolic coated plywood product available and my guess is that may be what you were quoted for? as ballast >> air gap (only around 10mm Im afraid) >> underside of marine ply painted in bitumen paint [**] (edges sealed with SP Eposeal 300) >> Marine Ply 18mm >> 3mm underflooring reflective insulation [***]>> 18-20mm oak flooring T&G or maybe reclaimed parquet. ";s:7:"keyword";s:34:"phenolic plywood vs marine plywood";s:5:"links";s:1161:"Rad 140 Powder Reddit,
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