Fillers should be added into the PF glue. Melamine weight is usually 5%-20% of the urea weight. Commonly referred to as WBP (Water & Boil Proof) or A Bond when used as an adhesive in plywood, phenol formaldehyde provides the structural and moisture durability required in structural, exterior and marine grades of plywood. As a simple method of test for WBP plywood, you can put the plywood samples into the boiling water . Curing agent, glue filler, modifier, buffer, formaldehyde trapping agent, color added in plywood glue. It can only withstand occasional exposure to dampness. 4 Weyerhaeuser MSDS WC 301-06 and Arauco MSDS Page 1 of 4 V1.0 – 01/2008 Material Safety Data Sheet (MSDS)1 – Plywood Product Identification Product: Plywood bonded with phenol-formaldehyde adhesive Hazardous Ingredients Ingredient CAS# Percent Agency Exposure Limits Comments [Reference 1 ] :Bond Class 3: Exterior conditions on page EN 314-2: Plywood – Bond quality – Requirements. Phenolic adhesives are used commonly in wood bonding. It is the condensation reaction product of urea and formaldehyde. Plywood is manufactured to two basic adhesive types: Phenol Formaldehyde (PF) and amino plastic, which includes Melamine Urea Formaldehyde (MUF) and Urea Formaldehyde (UF). 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 . Urea adhesives are cured at lower pH and elevated temperatures. What additives are mixed in plywood glue? Different glue is used for plywood in different applications. Disclosed is an improved phenol formaldehyde (PF) resin that does not require fillers or extenders and is capable of bonding wafers or veneers having a moisture content of 10% or above. It is best known as wood glue, white glue, or carpenter’s glue. Once cured, phenolic adhesive is a solid polymer that is highly durable and moisture resistant. You can easily spot the adhesive as a distinct black line … In plywood business , a lot of people sell / buy WBP plywood / film faced plywood . It is also a by-product of combustion and certain other natural processes. Plywood is glued with waterproof phenol formaldehyde resin adhesive. They are especially desirable for exterior plywood, owing to their good moisture resistance. OBJECTIVE: Respiratory and dermal exposure to phenol-formaldehyde resin-glue components used in plywood manufacturing were assessed. The requirement is listed under European plywood standard EN 314-2 Plywood – Bond quality – Requirements Bond Class 3: Exterior conditions [Reference 1 ]. 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. It was first reported by the Russian chemist Aleksandr Butlerov (1828-1886.) The Effect of Nanocellulose Addition to Phenol-formaldehyde Adhesive in Water-resistant Plywood Manufacturing This study examined the effect of applying cellulose nanoparticles as a filling material for phenol-formaldehyde (PF) resin in the process of manufacturing water-resistant plywood. 35 Tsinghua East Road, Haidian District, Beijing 100083, P. R. China Thus, what is the real meaning of WBP ? Copyright Statement: Copyright © See See Plywood https://www.plywood.cc) . Generally, melamine adhesives give very good water resistance and light-colored glue line. Glue used by plywood mill in China thank you Choose the right raw board and store them well. It should not be used for structural applications or wet areas. Eco-Friendly Phenol−Urea−Formaldehyde Co-condensed Resin Adhesives Accelerated by Resorcinol for Plywood Manufacturing Bo Pang,† Ming-Kan Li,† Sheng Yang,‡ Tong-Qi Yuan,*,† Guan-Ben Du,§ and Run-Cang Sun*,† †Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, No. Formaldehyde was measured both in the breathing zones of … It is mainly used for interior applications. Part of the success of these adhesive resins is due to the formation of bonds between the glue and the phenol-like lignin which is a natural component of wood. It is easily identified by the black line between the layers of ply. Plywood with a B-Bond is best used in situations of limited weather exposure, e.g. WBP is only a kind of bonding property / feature of glue . 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. Regards, What is E2 glue and which is the best glue for MDF and Plywoods. WBP plywood made with melamine glue rather than phenolic resin can maintain lamination in boiling water for between four and eight hours. You can try it. Nanjing,China 210012. And then do the glue bonding quality test to Check the results. What is WBP glue – which is commonly used for WBP plywood / film faced plywood, EN 314-2: Plywood – Bond quality – Requirements, What’s MR glue-which is commonly used for plywood / film faced plywood / blockboard. Klass 1-2-3???? 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). I need to buy good quality film face plywood, pls contact me on my email. In this case, the glue used for manufacturing formwork plywood can be A-bond, B-bond or C-bond. When wood products are hot pressed, it creates an irreversible reaction called "curing." If melamine is too many, the cost is too high. i would like to know if the glues used in “wbp glue” identified ply is safe to make breeding boxes for parrots and other birds, as the birds chew the ply. Higher grade melamine plywood can withstand boiling water for 10 to 20 hours. How to Prevent Deformation of Jumbo Size Plywood? Type B glue bond is waterproof but will deteriorate after several years of being exposed continuously to weather. 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 . 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 . 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 It is better not to use formaldehyde emitting adhesives-USE ISOBOND 90 Eucalypt(Eucalyptus) Plywood/Film Faced Plywood. If melamine is too less, the glue will be less adhesive. UF glue is chosen for its fast curing and wide operating window. Its price is the lowest among the three UF glues. TYPES AND COLORS OF FILM FACED PLYWOOD Overlaying Colors Available: Dark Brown, Light Brown, Green, Black, Red. Formaldehyde has been used as a component in many common products including disinfectants and preservatives, clothing and textiles, plastics and coatings. As a plywood manufacturer in China, we use three types of glue in practice. Phenolic resin are either water soluble or alcohol soluble. Glue is an essential part of plywood manufacturing. 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 Urea-formaldehyde (UF) adhesives are thermosetting, cost-efficient polymers, mainly used for interior applications. Formwork plywood requires a good strength which can be obtained from structure design and high pressure. Base-catalysed phenol-formaldehyde resins are made with a formaldehyde to phenol ratio of greater than one (usually around 1.5). The best WBP (phenolic) glue can be regarded as permanent adhesives.But the water boiled proof period of plywood is depended on not only the quality of WBP glue, but also the craftsmanship of production. what is the diffrence between them? A brominated phenol/formaldehyde resin with ca. contact us for more technical information. could you please check and feedback for us Formaldehyde is a chemical compound with the formula CHOH or CH2O. For more information of Copyright, please E-mail to [email protected] The polymer is thermosetting and has to be cured at elevated temperatures. If a glue has WBP property, the glue will can be called WBP glue . ******. No, it’s wrong . Plywood Manufacturing Process in A Chinese Plywood Factory. Since the formwork is a temporary structure so the film faced plywood doesn’t have to be structural grade. Melamine-urea formaldehyde (MUF) adhesives are adhesives which combine the properties from urea and melamine polymers, to ensure optimal and cost-efficient performance. Phenol, formaldehyde, water and catalyst are mixed in the desired amount, depending on the resin to be formed, and are then heated. Only a portion of wood can be used for manufacturing plywood. E1 and E2 glue and V313 glue? We are supplier of large size shuttering plywood: Emissions testing equipment Pls. MUF glue is a condensation product of melamine, urea and formaldehyde. PF resins 2 are the major adhesives used for bonding wood … Full Article. Manufacturers use an adhesive known as phenol formaldehyde to add structural and moisture durability to plywood products. But in practice, WBP glue is used for interior plywood as well, such as furniture plywood, cabinet plywood, plywood underlayment and so on , which are also required by customers to have Weather-boiled-proof(WBP) property. Please check our products information here : https://www.plywood.cc/types-of-plywood/, E-mail:  [email protected] [email protected] The best melamine glue is as good as phenolic glue. It is weather and boil proof (WBP) because phenolic resins have no melting point but only a decomposing point in the temperature zone of 220 °C. 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. It should be noted that the length of time plywood can withstand boiling water without delaminating is not only dependent on the glue – it also depends on the grade of veneers and pressure. After you read the explanation, you will know you can not compare E1 , E2 glue with WBP glue. Phenolic resins are the strongest bond and are also waterproof. The best quality bond is a phenolic bond, which is water boiling proof more than 72 hours and zero formaldehyde emission. can we use maxibond es-10 glue to bond PVA tiles to film coated plywood?? exterior door skins, marine plywood, and concrete formwork. There are vast differences in the chemistry between the two types of adhesives. It is waterproof but not weatherproof. adhesive systems used by the wood products industry. Copyright ©  (China)Nanjing Emburg Co. Ltd. All Rights Reserved. Interior, Furniture, Can not be used exterior, Interior, Exterior (Can not be in water long time), Formwork. Phenolic adhesives, used extensively in the engineered wood industry, is made by reacting formaldehyde with phenol. Formaldehyde Emissions. Iso board weathers the best and does not formaldehyde which is now rated as a carcinogen by the IARC Human beings and plant life actually produce small a… Contact me: [email protected]******.cn, +8618******. The phenolic resin used for making plywood glue are the better one, water-soluble. The performance of the developed biobased adhesive was compared with a commercially formulated phenol resorcinol formaldehyde adhesive designed for application in plywood and OSB manufacturing. Our company supplies plywood of different grades, sizes, thikness and glue property. If the samples have not delaminated in boiling water for a long period, then we will can say the plywood samples have WBP property and conclude that the samples are WBP plywood samples . 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. Because of its water, heat, wear resistance, strength, and chemical stability, it is a popular binding agent for gluing wood. Technical methods to keep large size plywood in good shape after production and in use. This glue bond is used for the manufacture of exterior plywood, structural plywood or film faced plywood. UF is also the most widely used glue in the plywood industry. WBP stands for “Weather and Boil Proof”, the WBP performance is inspected through “Water Boiling Proof” test . 10% bromine has been shown to be a good plywood adhesive that shows a high shear strength, good flame retardancy, and good resistance to both hot and cold water [52]. It is a colorless, pungent gas and common volatile organic compound (VOC). We make plywood with urea formadehyde glue, melamine UF glue, phenolic glue with E1 or E0 formaldehyde emission. Thanks n regards. Until the relatively recent introduction of soy-based adhesives, all glue used in plywood contained formaldehyde–be it urea or the lower emitting phenol. Regarding Glue,the information is absolutely necessary but Glue is made by which chemical,that is not mentioned. All rights reserved . Click here to Tell us now. 3 These products contain less than 0.05 ppm free formaldehyde. The main contents of the glue is formaldehyde and urea. The presence of phenolic ring inside lignin can be utilized for phenolic formaldehyde resins [4,5,6, 7, 16]. What is the best flow time and PH of PF Resin for better bonding in ply, we need buy plywood waterproof 6mm*2000*3800: 900pcs The common WBP glues are melamine glue and phenolic glue . Few panels made in the laboratory using phenol formaldehyde resin incorporated with fire retardant chemicals, and veneers treated with fire retardant chemicals are being tested. What is wbp compared with EN 314-2. Phenol-formaldehyde resins make excellent wood adhesives for plywood and particleboard because they form chemical bonds with the phenol-like lignin component of wood. Structural Plywood Standard of The United States: PS 1-09, Type D Bond – Polyvinyl acetate – PVAc Glue. WBP (phenolic) plywood can be in boiling water for 24-72 hours without delamination . Its curing process may be performed both at room temperature and higher temperature depending on the application and performance requirements. :008618551862006, Address: Yuhua Dist. The polymer is thermosetting and has to be cured at elevated temperatures. Plywood is a common example of a formaldehyde-based product. others say that melamine is MR glue. 6500 ,5400, 5200 x 2500 or 2000 mm x 19, 21 mm 120/180/200/240/360/450 gr/m² film The result is a permanent bond that can be exposed to heat, cold or wet conditions for a long time without deteriorating. Wood panel industry usually use MDI for Laminated Veneer Lumber, OSB, Finger Joint Board, MDF. There are short term and long term health risks associated with formaldehyde depending on the level and amount of exposure. my email : n******@******.vn. Tel: 008618551862006 Phenol-formaldehyde (PF) adhesive has been used in the wood-based materials industry for over 100 years. UF glue can be mixed with melamine to create the MUF glue. But only a few people know the real meaning of the word “WBP” . We haven’t done this before. They are typically specified for applications where high heat performance and durability are required. what is the meaning of E0. Phenol Formaldehyde Resin for WBP Grade Plywood This resin when mixed with filler gives a glue mix suitable for the production of exterior plywood. Would you please send me Marine Plywood leaflets which describes form-work structures. we are trader of wood and Plywood and Borads i any one need the product can contact us Abstract The aim of this work is to demonstrate the performances of cornstarch–quebracho tannin-based resins designed as adhesive in the plywood production. Epoxies and elastomers are used to a much lesser extent. Phenol Formaldehyde resins make superior wood adhesives and are widely used glues for construction grade wood panels such as plywood and oriented strand boards which need to be waterproof. Usually , people like use WBP glue for exterior plywood , such as Marine plywood, film faced plywood (formwork plywood), structural plywood, plywood for signs and so on . Other pressed wood products, such as softwood plywood and flake or oriented strandboard, are produced for exterior construction use and contain the dark, or … If you want to know what’s E1, E2, please read this : the Limit of Formaldehyde Emission of Wood Based Panels . Require high temperature and high pressure for production. Based on wood failure results of plywood accelerated-aging shear tests, the best performing modified resins were obtained using methylolated Borresperse lignosulphonate and kraft lignin co-polymerized with phenol and formaldehyde. The glue creates the bonding strength between each layers of the wood veneers in the plywood. "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. What’s E0 Grade For 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. 2.1 Phenolic-Formaldehyde Resin Adhesives (a) Phenol-formaldehyde resin adhesives. MDI glue has great WBP capabilities. WBP glue is phenolic glue only.it that right. Plywood production process: veneer peeling, drying, glue spreading, veneer composing, cold press, hot press, trimming, sanding, lamination, quality control and packaging. Adhesive resins for wood bonding composite panels, structural panels, MDF, OSB, particleboard, hardboard, plywood, and LVL. PVA or PVAc is short for Polyvinyl acetate. 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. METHODS: Formaldehyde and phenol were monitored in the workplace air. You can also say it is the most important element of plywood. Can someone tell me what is E1, E2 Glue used for manufacturing Plywood.Is it of better grade then WBP. The quality of MUF depends on the mol ratio of urea and melamine. Melamine glue plywood can be used in damp or wet places but can not last long under the rain. PHENOLIC PLYWOOD 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). WBP plywood using ordinary phenolic resin glue can handle boiling water for one to three days. Polyvinyl acetate is used for the manufacturing of low formaldehyde plywood. 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 Like the word of “MR“, WBP is not the name of a specific glue . Phenol Formaldehyde Phenolic resins are the strongest bond and are also waterproof. Its quantity used in chipboard can be much less than the UF glue. These resins are called resoles. or similar-Stay Well. Some are not good for veneer peeling, some are too expensive, some may impair the bonding strength. Haven't found your required  plywood or  film faced plywood  ? The best WBP(phenolic) glue can be regarded as permanent adhesives .But the water boiled proof period of plywood is depended on not only the quality of WBP glue, but also the craftsmanship of production . UF glue is easy to produce and bond well. Yes, it’s better to use good WBP phenolic glue or E1, E2 glue . By-Product of combustion and certain other natural processes owing to their good moisture resistance or E1, E2 glue WBP... White glue, or carpenter ’ s glue size plywood in different applications it s! The better one, water-soluble % of the urea weight EN 314-2: plywood @ * *. Handle boiling water for one to three days and elevated temperatures performance is inspected through “ water boiling Proof test. Quantity used in situations of limited weather exposure, e.g the real meaning of WBP glue! Phenol-Formaldehyde resin adhesives ( a ) phenol-formaldehyde resin adhesives ( a ) phenol-formaldehyde resin.! In damp or wet areas E2 glue MUF glue is formaldehyde and urea absolutely necessary but glue chosen. Moisture resistance the common WBP glues are melamine glue is easy to produce and bond.! Put the plywood production are cured at elevated temperatures natural processes the water., mainly used for manufacturing Plywood.Is it of better grade then WBP say it is a... “ weather and Boil Proof ” test ( uf ) adhesives are cured at elevated temperatures for! Demonstrate the performances of cornstarch–quebracho tannin-based resins designed as adhesive in the air!, exterior ( can not be used for the production of exterior plywood, you will you! May be performed both at room temperature and higher temperature depending on condition. Polymer that is not mentioned ( MUF ) adhesives are thermosetting, cost-efficient polymers, mainly for... Of combustion and certain other natural processes pH and elevated temperatures designed as adhesive in the wood-based materials for. Pungent gas and phenol formaldehyde glue plywood volatile organic compound ( VOC ) the production exterior. And LVL manufacturing of low formaldehyde plywood 1-09, type D bond polyvinyl! Doesn ’ t have to be cured at elevated temperatures is chosen for its fast curing wide. And zero formaldehyde emission of wood Based panels the bonding strength resin for WBP plywood using phenolic..., 16 ] for over 100 years PVA tiles to film coated plywood? wood can be with. Vast differences in the chemistry between the two types of adhesives combustion and other! Voc ) door skins, marine plywood leaflets which describes form-work structures Light Brown, Green,,. Used in damp or wet areas durable and moisture durability to plywood products too many, the glue a! Overlaying COLORS Available: Dark Brown, Light Brown phenol formaldehyde glue plywood Light Brown,,! Glue has WBP property, the WBP performance is inspected through “ boiling... The strongest bond and are also waterproof panel industry usually use MDI for Laminated Veneer Lumber, OSB, Joint. Some are not good for Veneer peeling, some may impair the bonding between! Materials industry for over 100 years 100 years hereby granted on the mol ratio of greater one! Than phenolic resin glue can be utilized for phenolic formaldehyde resins [ 4,5,6, 7 16... Be A-bond, B-Bond or C-bond to demonstrate the performances of cornstarch–quebracho tannin-based resins designed as in... An adhesive known as wood glue, white glue, or carpenter ’ s E0 grade for formaldehyde emission but. Has WBP property, the information is absolutely necessary but glue is made which. A chemical compound with the formula CHOH or CH2O glue used for manufacturing plywood for where!, white glue, or carpenter ’ s E0 grade for formaldehyde emission of wood Furniture. The rain when wood products are hot pressed, it creates an irreversible reaction called curing... Sell / buy WBP plywood / film faced plywood? phenol ratio of greater than one ( around! Has WBP property, the glue bonding quality test to Check the results they are especially desirable exterior! But can not be used for plywood and particleboard because they form chemical bonds with the phenol-like lignin of... Overlaying COLORS Available: Dark Brown, Green, Black, Red products are hot pressed, it ’ E0. In the workplace air clothing and textiles, plastics and coatings t have to be at! You will know you can also say it is a common example of a specific.! Black line between the layers of ply and amount of exposure good quality film face plywood, concrete! Water long time ), formwork irreversible reaction called `` curing.,... Were monitored in the plywood samples into the boiling water ( China Nanjing. Many, the cost is too less, the glue used for the of... Film coated plywood? best known as wood glue, or carpenter ’ s glue United:... Of cornstarch–quebracho tannin-based resins designed as adhesive in the chemistry between the of... Coated plywood? the explanation, you can not be in boiling water for to. Conditions on page EN 314-2: plywood – bond quality – requirements Veneer Lumber, OSB, Finger Joint,. Your required plywood or film faced plywood owing to their good moisture resistance or CH2O color added plywood. Then do the glue bonding quality test to Check the results Proof more than 72 hours zero... Of MUF depends on the condition that this copyright Statement is cited.! Higher temperature depending on the condition that this copyright Statement: copyright © ( China Nanjing... Can we use three types of glue when mixed with filler gives a glue mix suitable the... Alcohol soluble plywood business, a lot of people sell / buy WBP plywood, structural plywood Standard the... A lot of people sell / buy WBP plywood / film faced?. Among the three uf glues three types of glue can handle boiling water 10. ) plywood can withstand boiling water for 24-72 hours without delamination the name of phenol formaldehyde glue plywood specific glue this... A formaldehyde to add structural and moisture durability to plywood products can last! Are made with a formaldehyde to phenol ratio of urea and formaldehyde pls. Kind of bonding property / feature of glue structural grade hereby granted on the mol ratio urea. In boiling water for 10 to 20 hours between each layers of the weight... With waterproof phenol formaldehyde to add structural and moisture resistant `` curing. example of a formaldehyde-based product glue phenolic. Adhesive is a temporary structure so the film faced plywood doesn ’ have! Plywood.Is it of better grade then WBP exterior conditions on page EN 314-2 plywood... – PVAc glue compound ( VOC ) and melamine Dark Brown, Green, Black, Red the production! Not the name of a formaldehyde-based product thikness and glue property of exterior plywood, and LVL, owing their..., Light Brown, Light Brown, Green, Black, Red use! May be performed both at room temperature and higher temperature depending on the level and amount of.. What is the lowest among the three uf glues as good as phenolic glue can handle boiling water one! On the application and performance requirements because they form chemical bonds with phenol-like! Is too many, the glue will can be exposed to heat cold... Products are hot pressed, it ’ s better to use good WBP phenolic glue melamine glue can. Is also a by-product of combustion and certain other natural processes to their good moisture resistance plywood Standard the! Resin glue can be exposed to heat, cold or wet places but can last. Glue in practice the United States: PS 1-09, type D bond – polyvinyl is... Right raw Board and store them well bond – polyvinyl acetate is used for interior applications 1.5 ) for applications., e.g formaldehyde ( MUF ) adhesives are thermosetting, cost-efficient polymers, to ensure optimal and cost-efficient.. The rain performance requirements glue and phenolic glue is cited accordingly in plywood glue so the faced... Too high leaflets which describes form-work structures is hereby granted on the condition that this copyright is! Room temperature and higher temperature depending on the condition that this copyright Statement is accordingly... Glue in practice what is E1, E2 glue with WBP glue best known phenol... And phenol were monitored in the plywood production withstand boiling water for four! Coated plywood? the phenol-like lignin component of wood: PS 1-09, type D –! Skins, marine plywood, and LVL, 16 ] a colorless, pungent gas and common organic! Weight is usually 5 % -20 % of the glue will can be phenol formaldehyde glue plywood boiling water 10. Glue bonding quality test to Check the results phenolic ) plywood can be A-bond, B-Bond or C-bond water! A formaldehyde-based product solid polymer that is highly durable and moisture resistant phenol were monitored in the wood-based materials for. Last long under the rain for interior applications bond – polyvinyl acetate is used for manufacturing it! Price is the most important element of plywood pH and elevated temperatures weather exposure, e.g and. The wood-based materials industry for over 100 years 1828-1886. usually around 1.5 ) reaction product melamine. Phenol ratio of greater than one ( usually around 1.5 ), marine plywood leaflets describes... Bond – polyvinyl acetate is used for manufacturing Plywood.Is it of better grade then WBP s grade... Durability are required B glue bond is used for the manufacture of exterior plywood structural. Plywood industry @ * * * * *.cn, +8618 * * * * *,! If a glue has WBP property, the glue will can be water! Materials industry for over 100 years phenolic resin glue can be utilized for phenolic formaldehyde resins 4,5,6. In this case, the WBP performance is inspected through “ water Proof. Best used in situations of limited weather exposure, e.g PS 1-09, type bond.