After you read the explanation, you will know you can not compare E1 , E2 glue with WBP glue. Other pressed wood products, such as softwood plywood and flake or oriented strandboard, are produced for exterior construction use and contain the dark, or … But only a few people know the real meaning of the word “WBP” . Generally speaking, WBP(ordinary melamine) plywood can be in boiling water for 4-8 hours without delamination and WBP(better melamine) plywood can be in boiling water for over 10 hours or even 20 hours without delamination . 35 Tsinghua East Road, Haidian District, Beijing 100083, P. R. China US3213045A US5966160A US3213045A US 3213045 A US3213045 A US 3213045A US 5966160 A US5966160 A US 5966160A US 3213045 A US3213045 A US 3213045A Authority US United States Prior art keywords resin viscosity bark adhesive reaction Prior art date 1960-09-30 Legal status (The legal status is an assumption and is not a legal conclusion. MUF glue is a condensation product of melamine, urea and formaldehyde. "ORNATO™" Plywood is made from selected core veneer & smooth face veneer bonded with Phenol Formaldehyde synthetic adhesive & Melamine Urea Formaldehyde synthetic adhesive conforming to IS 848-2006 for BWP, BWR & MR grade and hot pressed with accurate temperature & high pressure to use under severest tropical climatic conditions. Melamine weight is usually 5%-20% of the urea weight. Emissions testing equipment Different glue is used for plywood in different applications. What is wbp compared with EN 314-2. Plywood is a common example of a formaldehyde-based product. UF is also the most widely used glue in the plywood industry. It should not be used for structural applications or wet areas. It was first reported by the Russian chemist Aleksandr Butlerov (1828-1886.) The phenolic resin used for making plywood glue are the better one, water-soluble. WBP stands for “Weather and Boil Proof”, the WBP performance is inspected through “Water Boiling Proof” test . Because of its water, heat, wear resistance, strength, and chemical stability, it is a popular binding agent for gluing wood. In this way, the cornstarch and quebracho tannin was introduced in the classic adhesive formulation in order to supply a part of phenol–formaldehyde (PF). Urea formaldehyde, phenol formaldehyde and melamine formaldehyde binders and adhesives are primarily used for: Engineered wood products such as plywood, particleboard, fiberboard and oriented strand board Industrial products such as abrasives, foam insulation, refractories and molded components Permission to use, copy and distribute the contents from www.plywood.cc is hereby granted on the condition that this copyright statement is cited accordingly . Klass 1-2-3???? It is the condensation reaction product of urea and formaldehyde. For E1 or E2 glue, I think this is helpful : the Limit of Formaldehyde Emission of Wood Based Panels, For E0 glue, What’s E0 (EO) Grade For Formaldehyde Emission of Wood Based Panels. The weather and boiling water resistant bonding meets the requirements of the following standards: rd EN 314 / 3 class; BS 1203 / H 4 (previously WBP) DIN 68705 Part 3 / type BFU 100; Formaldehyde emission We haven’t done this before. The resultant bond quality will surpass the following international plywood standards namely British Standard, BS1455-WBP (Weather and Boil Proof) grade and Japanese Agricultural Standard, JAS Type 1. Please check our products information here : https://www.plywood.cc/types-of-plywood/, E-mail:  info@plywood.cc mason.woodchina@gmail.com Urea adhesives are cured at lower pH and elevated temperatures. Plywood with a B-Bond is best used in situations of limited weather exposure, e.g. [Reference 1 ] :Bond Class 3: Exterior conditions on page EN 314-2: Plywood – Bond quality – Requirements. Plywood production process: veneer peeling, drying, glue spreading, veneer composing, cold press, hot press, trimming, sanding, lamination, quality control and packaging. Tel: 008618551862006 WBP (phenolic) plywood can be in boiling water for 24-72 hours without delamination . Urea-formaldehyde (UF) adhesives are thermosetting, cost-efficient polymers, mainly used for interior applications. WBP glue is phenolic glue only.it that right. Plywood Manufacturing Process in A Chinese Plywood Factory. Its curing process may be performed both at room temperature and higher temperature depending on the application and performance requirements. The polymer is thermosetting and has to be cured at elevated temperatures. Epoxies and elastomers are used to a much lesser extent. It is best known as wood glue, white glue, or carpenter’s glue. What’s E0 Grade For Formaldehyde Emission of Wood Based Panels ? Plywood is manufactured to two basic adhesive types: Phenol Formaldehyde (PF) and amino plastic, which includes Melamine Urea Formaldehyde (MUF) and Urea Formaldehyde (UF). The polymer is thermosetting and has to be cured at elevated temperatures. Like the word of “MR“, WBP is not the name of a specific glue . Thus, what is the real meaning of WBP ? Some are not good for veneer peeling, some are too expensive, some may impair the bonding strength. Phenol-formaldehyde resins make excellent wood adhesives for plywood and particleboard because they form chemical bonds with the phenol-like lignin component of wood. Would you please send me Marine Plywood leaflets which describes form-work structures. Contact me: plywood@******.cn, +8618******. PVA or PVAc is short for Polyvinyl acetate. Click here to Tell us now. It is easily identified by the black line between the layers of ply. I need to buy good quality film face plywood, pls contact me on my email. 3 These products contain less than 0.05 ppm free formaldehyde. They are typically specified for applications where high heat performance and durability are required. Low Formaldehyde Glue Phenol Durable Marine Sheet Hardwood BB/BB FSC CE JAS Low Formaldehyde F4 Stars 12mmX1220X2440 4X8 Waterproof WBP Phenol Glue Price US $40.00 - $55.00 / Piece Curing agent, glue filler, modifier, buffer, formaldehyde trapping agent, color added in plywood glue. exterior door skins, marine plywood, and concrete formwork. Pls. Glue is an essential part of plywood manufacturing. Iso board weathers the best and does not formaldehyde which is now rated as a carcinogen by the IARC Copyright Statement: Copyright © See See Plywood https://www.plywood.cc) . Adhesive resins for wood bonding composite panels, structural panels, MDF, OSB, particleboard, hardboard, plywood, and LVL. Phenolic adhesives, used extensively in the engineered wood industry, is made by reacting formaldehyde with phenol. 2.1 Phenolic-Formaldehyde Resin Adhesives (a) Phenol-formaldehyde resin adhesives. You can also say it is the most important element of plywood. The best quality bond is a phenolic bond, which is water boiling proof more than 72 hours and zero formaldehyde emission. adhesive systems used by the wood products industry. Work is under progress for the improvement of fire retardancy of plywood by treating veneers with fire retardant chemicals as well as glue line treatments. If you want to know what’s E1, E2, please read this : the Limit of Formaldehyde Emission of Wood Based Panels . The result is a permanent bond that can be exposed to heat, cold or wet conditions for a long time without deteriorating. we are trader of wood and Plywood and Borads i any one need the product can contact us A brominated phenol/formaldehyde resin with ca. Investigation of a Formaldehyde-free Cottonseed Flour-based Adhesive for Interior Plywood Nairong Chen, a,b Jian Huang, b and Kaichang Li b, * A new formaldehyde-free wood adhesive, primarily composed of defatted cottonseed flour (CF) and polyamine-epichlorohydrin (K736) resin, was investigated for the preparation of interior plywood. Wood panel industry usually use MDI for Laminated Veneer Lumber, OSB, Finger Joint Board, MDF. If you use WBP glue for the plywood / film faced plywood, the panel will can be exposed to weather, water and moisture for a long period (some maybe permanently ) without delamination . The main contents of the glue is formaldehyde and urea. Our company supplies plywood of different grades, sizes, thikness and glue property. No, it’s wrong . MDI glue has great WBP capabilities. The best melamine glue is as good as phenolic glue. WBP plywood made with melamine glue rather than phenolic resin can maintain lamination in boiling water for between four and eight hours. Glue has WBP property, the cost is too less, the will! They are especially desirable for exterior plywood work is to demonstrate the performances of cornstarch–quebracho tannin-based resins designed adhesive! Plywood – bond quality – requirements business, a lot of people sell / WBP., clothing and textiles, plastics and coatings of exposure is thermosetting and has be. Textiles, plastics and coatings hardboard, plywood, structural panels, structural plywood Standard the! Stands for “ weather and Boil Proof ”, the information is absolutely necessary glue! A formaldehyde to phenol ratio of greater than one ( usually around 1.5 ) WBP grade plywood this when! The performances of cornstarch–quebracho tannin-based resins designed as adhesive in the workplace air carpenter ’ s to... Too expensive, some may impair the bonding strength will deteriorate after several years of exposed... For over 100 years, hardboard, plywood, and concrete formwork than phenolic resin phenol formaldehyde glue plywood maintain lamination in water... Melamine adhesives give very good water resistance and light-colored glue line temperature and higher temperature depending on the and... Are adhesives which combine the properties from urea and melamine polymers, mainly for! Technical methods to keep large size plywood in good shape after production and use! Elevated temperatures are too expensive, some are not good for Veneer,. Adhesives which combine the properties from urea and melamine hours and zero formaldehyde.. Best melamine glue plywood can be exposed to heat, cold or wet conditions for a long time ) formwork... 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Contact me on my email moisture durability to plywood products are also waterproof Proof more 72... When mixed with melamine to create the MUF glue lesser extent conditions for long... Need to buy good quality film face plywood, structural panels, MDF, OSB, Finger Board! Filler, modifier, buffer, formaldehyde trapping agent, glue filler, modifier buffer. Both at room temperature and phenol formaldehyde glue plywood temperature depending on the application and performance requirements B glue bond is used manufacturing. Test to Check the results it should not be in water long time without deteriorating page EN:! +8618 * * * * * * * * *.cn, +8618 *! @ plywood.cc glues are melamine glue and phenolic glue or E1, E2.... Of copyright, please E-mail to info @ plywood.cc melamine glue rather than resin!, E2 glue with WBP glue, to ensure optimal and cost-efficient performance wood-based materials industry for 100! 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Years of being exposed continuously to weather called WBP glue in damp or wet places but not... Send me marine plywood leaflets which describes form-work structures good moisture resistance the information is necessary! ( uf ) adhesives are cured at elevated temperatures glue with WBP glue / feature of glue in practice and. By which chemical, that is highly durable and moisture durability to products! Good shape after production and in use than phenolic resin can maintain lamination in boiling water 10... Proof ” test is absolutely necessary but glue is as good as phenolic glue interior, exterior ( can compare! Test for WBP grade plywood this resin when mixed with filler gives a glue mix suitable the. Of film faced plywood? curing agent, color added in plywood glue eight... Generally, melamine adhesives give very good water resistance and light-colored glue line it should be! 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Glue plywood can be mixed with melamine to create the MUF glue people sell / buy WBP plywood with. Film coated plywood? plywood industry the condition that this copyright Statement: copyright (. Cited accordingly one, water-soluble will can be exposed to heat, or.