Encyclopedia of fire safety

Primer for wood with pva glue. What wood glue is best. Selection principles. Preparing the surface for application The cheapest wood glue

When restoring furniture, it is necessary to have not only high-quality parts, but also glue. The reliability of the design depends on this. Incorrectly selected tools can ruin appearance products and their functionality. The instructions do not always help to find out what material the glue is suitable for.

There are many types of glue that differ in color, consistency, composition. For every material there is a suitable product. If you choose them correctly, the design will be solid.

Selection rules

To purchase a suitable adhesive for furniture, you must consider simple rules:

  • type of surface: usually the packaging says what materials the product is intended for;
  • type of coating base: furniture glue can fasten all parts with high quality, but the base is damaged, so you should choose a product based on synthetic elastomers;
  • composition: there should not be trichloroethane, which is very harmful to human health;
  • presence and solvent: components are harmless to humans;
  • color: usually the product is presented in the form of white or yellow, so it must be selected for your furniture;
  • product density: you need to choose an indicator not lower than 1.1 g / cm 3, which will be enough for high-quality work.

Simple rules will help you purchase the right tool and repair the product with high quality.

Types of glue

In addition to the rules for choosing glue, you need to pay attention to the type of product. This will allow you to perform high-quality work on fastening objects. There are several types of furniture glue. PVA, or polyvinyl acetate, which is divided into 2 types: for home and repair garden furniture. The second type is moisture resistant, but since it has yellow may leave traces.

Made of latex, perfect for repairing products made of different materials for which strength and safety are important. It has the best penetrating ability, so it is chosen for the restoration of furniture with mechanical stress. The composition does not contain toxic substances.

For furniture it is intended for a fastening of plastic details. It is necessary to work with the tool carefully, since gluing occurs immediately. But since rubber is present in the composition, the glue does not harden.

To restore oily wood, you need the right furniture glue. Which one is better to use? Suitable for this The product is moisture resistant, therefore ideal for garden structures. After work, an invisible seam remains.

Polyurethane adhesive-sealant is used in fastening products with gaps. With means restoration of any furniture is carried out. The exposure time is 1 minute. After that, the product should stand motionless for two days.

There is a two-component used for different materials. The composition is useful for filling gaps, and the strength remains of high quality. After the procedure, any film coatings and paint can be applied.

Preparation for work

In order for the glue for chipboard furniture to have an excellent effect on the surface, you need to prepare everything you need for the procedure. Parts must be clean. First you need to sand the surface, which will remove the streaks of the old product.

Then it is necessary to degrease the parts with a solvent. When the product dries, glue for furniture from chipboard is applied to it. Which is better to choose, it is advisable to decide in advance. After drying, the furniture is ready for use.

What glue is suitable for wood?

If you prepare for the procedure, as well as choose the right glue, the furniture will be repaired so that the gluing joints will not be visible. The following are suitable:

  • carpentry;
  • synthetics;
  • casein.

Used in furniture repair. But the tool is quite susceptible to moisture. Even if you fasten the details of the structure, which will stand in the air, in frost it will begin to collapse. PVA also has the same disadvantages. Synthetic is the most short-lived, as the surface is destroyed due to varnishing.

European funds

Adhesives of foreign companies also deserve attention, since most of them are frost-resistant. Even if the structure is located in the air, you can work without problems. The composition is completely ready for use, and therefore there is no need for proper mixing of the components.

Such mixtures are moisture resistant, otherwise the moisture that gets on the tree could not dry properly. Gradually, mold appears bad smell. European products are environmentally friendly, although they are not completely harmless. After drying, the parts are fastened securely.

Adhesive Titebond

The products are produced by a popular American company. Adhesive for furniture made of Titebond wood perfectly fastens structures. The company is constantly working to improve technology, so the range is regularly expanding.

The company is engaged in the production of glue on the following basis:

  • alymphatic;
  • polymeric;
  • polyurethane;
  • protein;
  • from synthetic rubber;
  • water.

Glue is used to create plywood, floor coverings, furniture. The manufacturer checks the products for compliance with quality, strength, moisture resistance. The carpentry tool is suitable for furniture repair due to moisture resistance, frost resistance.

The agent consists of a polyaliphatic emulsion, therefore it is viscous and chemically stable. He is not afraid of temperature changes, as well as other adverse factors. The benefits include:

  • excellent adhesion to the surface;
  • long pressing is not required;
  • high density;
  • not abrasive;
  • solvent resistant;
  • easily removed before drying.

Caring for wooden furniture

After gluing, wooden furniture, more than ever, needs care. It is necessary to use simple rules. Even if high-quality glue is used, furniture should not be placed in frost, as well as under the influence of sun rays. Humidity and temperature changes also have a negative effect.

No need to install structures near a balcony or window. To protect the product from sunlight, it is necessary to treat the surface lacquered and then wax. To prevent insects from getting into the wood, every summer you need to wipe the lower parts of the structure with a cloth with turpentine.

Furniture must be installed on a flat floor, otherwise deformation appears over time. Cleaning should be done with a polishing cloth with a mixture of wax and antistatic agents. Help to update the product vegetable oil, for example, burdock. It will take a few drops and a rag.

In order for furniture to serve reliably for many years, restoration must be carried out with suitable tools and means. After that, you only need to follow the simple rules of care, and then the details of the structure will be fastened with high quality.

When choosing the right glue for wood, you should consider the specifics upcoming work and give Special attention properties and characteristics of the composition. The decisive factors are the types of materials to be bonded, the conditions where the work will be carried out and the finished structures used.

The choice of the main properties of the adhesive composition

There is no universal glue for any kind of work, everyone has certain properties. To figure out which glue is best for wood and which one for gluing other materials, you should study the characteristics and composition of the selected product.

What you need to pay attention to:

  1. degree of moisture resistance - denoted by the letter D and is divided into classes (2 - minimum, 3 - sufficient, 4 - increased);
  2. toxicity;
  3. adhesive bond strength (kg/cm³) and composition density;
  4. adhesion to other materials - fabric, metal, plastic, rubber, ceramics, glass;
  5. complete drying time;
  6. heat resistance;
  7. resistance to bacteria and fungi.

The secondary characteristics include color, it can also be different: transparent, white, black or imitating the natural shade of a tree of a certain breed.

Varieties of glue for wood

Manufacturers have developed a wide variety of compositions for woodworking, and if you turn to the experience of carpentry masters, you can select a number of the most suitable types. It should be noted that some types of glue can be divided into several subspecies, each of which has a narrow specialization, a special color or composition.

PVA glue or compositions based on it

PVA glue remains the undisputed leader, many users prefer it, despite hundreds of new products with unique compositions. Glue is produced by almost all brands, and the average price for 1 kg varies from 80 to 400 rubles. Best furniture types glues are often made on the basis of PVA.

Pros:

  • environmental friendliness - the composition does not emit dangerous toxins before or after drying;
  • leaves no traces;
  • complete drying time - up to 24 hours;
  • high adhesion to various materials.

Minus:

  • composition on water based not intended for use in rooms with high humidity.

Crushed wood shavings can be added to PVA glue for better fixation of the elements.

Familiar to many glue, made on the basis of epoxy resin, are widely used for a variety of purposes, including for connecting wooden structures. The kit includes two components: adhesive and hardener.

Pros:

  • high adhesion to all known materials;
  • does not leave marks on the product, does not change the color of the tree;
  • epoxy glue is very strong and ideal for fixing even moving parts;
  • resistant to water, oils and various aggressive solutions;
  • has electrical insulating properties.

Minuses:

  • when using it is necessary to wear protective gloves, the composition can provoke allergic reaction;
  • with little experience of use, it is very difficult to calculate the proportions, which sometimes leads to overspending.

Universal glue is often used to connect small elements during construction. various models buildings or vehicles, repair of furniture or interior items.

Pros:

  • provides a very strong connection;
  • total drying time less than 20 hours;
  • more resistant to humidity and heat than wood glue.

Minuses:

  • complex preparation process - the adhesive powder is mixed with cold water and mix thoroughly. It will take about 1 hour to bring the glue to a state of readiness.

Cyanoacrylate compounds

Cyanoacrylate mixtures are considered universal and are very popular. Experienced craftsmen have long been convinced of the effectiveness of such compounds. Glue is most often sold in small containers: given that the cost of such goods cannot be called low, it is rational to use them for a small amount of work.

Pros:

  • high strength;
  • the minimum setting time is about 10-15 seconds;
  • glue does not change the color of products, leaves no traces;
  • resistant to various liquids;
  • the minimum density of the composition allows it to be used for decorative works or connecting small parts.

Minuses:

  • relatively high cost (for example, Cosmofen second glue, 20 g - 120 rubles);
  • requires extreme care during operation.

Clay BF

Among the many types of BF glue for wood, two products are suitable: BF2 for internal works and BF4 - for outdoor. Multi-purpose formulation suitable for bonding various materials to wood, easy to use and sold in almost every specialty store.

Pros:

  • BF2 - moisture resistant, BF4 - moisture resistant, frost-resistant;
  • dries completely in 1 hour;
  • Great for gluing metal to wood.

Minuses:

  • effective only after careful preparation - the products should be cleaned well.

If the bonding point is heated to 80°C, the complete drying time will be reduced to 15 minutes.

Heat-resistant compositions are highly specialized, they are used when the workpiece is subjected to firing or other influences. high temperatures. The adhesive will not dry out, crack or peel off.

One of the varieties of high-temperature compositions are glue sticks. Apply this composition with glue gun, where the rod gradually melts. The application intensity is adjustable by the user.

Wood glue

Wood glue is only suitable for gluing wooden blanks. Powdered glue is poured with water 3-4 cm above the powder level and the mixture is kept for 6 to 12 hours, depending on the manufacturer's recommendations. Then the adhesive composition is brought to a state of readiness in a water bath, mixing thoroughly. The temperature of the mixture should not exceed 70°C. If you add natural drying oil to the composition, the glue acquires waterproof properties. By adding salicylic acid or borax, the adhesive will be resistant to all types of bacteria, mold or fungal spores.

Pros:

  • used for all types of wood;
  • has sufficient strength.

Minuses:

  • long and relatively complex cooking process.

How to glue wood to wood or other materials?

Determining which glue to glue wooden products with is quite simple. First of all, you should analyze what work will be carried out: gluing wood products or gluing other materials to wood.

You can glue a tree to a tree or other material with any of the types of glue listed above. When working with small details it is better to use a quick-drying cyanoacrylate compound or casein glue. When it is necessary to perform a large amount of work, for example, to glue linoleum to plywood base, fit wooden furniture skin or finish the walls, PVA is most suitable. If the structure is outside all year round and be subjected to temperature changes - you need BF4.

Fastening wooden elements to each other also implies a medium or large amount of work, therefore, carpentry or epoxy glue, as well as PVA, are used. The compositions have a neutral color and are invisible from the outside, as a result, you can get a strong monolithic structure. Which one is better to use is a subjective question, these compounds have a big difference in moisture resistance, but similar bond strength.

General rules for using glue when working with wood

The maximum effect can be achieved if the details of the structure are properly prepared. Wood should be processed, for this the surface is cleaned with a fine abrasive sandpaper and all dust is removed. Other materials, such as porcelain, glass or plastic, are degreased with acetone.

According to the technology, the glue is applied in an even thin layer on both surfaces. Gluing with BF glue is carried out in two stages with a break of 15 minutes. When using two-component formulations, they are either mixed, or one component is applied to one side, the other to the other and fastened.

When joining the end parts, carpentry glue for wood is applied in two layers, allowing the first to dry slightly. A second one is applied on top, the glue is allowed to soak a little, the parts are fastened together. When the slabs are joined, the mixture is spread along the fibers in a single layer.

After applying the composition, the elements should be pulled off using a press or clamp. If this is not possible, then only quick-drying “second” types of glue are used for gluing. If the composition dries longer than 4 hours, the clamps hold for about 2 hours. Excess glue protruding between the blanks must be quickly removed until the composition has set.

The last point is safety measures. Sometimes even simple formulations can provoke an allergic reaction. To protect eyes and skin, it is enough to use rubberized gloves and goggles.

Only popular and relatively safe species adhesives and mixtures. There are other types that will do their job well - for example, Moment Joiner glue is quite effective, but it has increased toxicity and is applicable only for technical purposes. Other types often require long preparation of the mixture or are intended only for production work.

One of the most controversial materials, about which even experts do not have an unambiguous opinion, isglue for wood: which is better, more reliable and easier to use? The question is very interesting, requiring knowledge of the features and properties different types glue.

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What is it needed for

Wood glue is used everywhere and constantly. Everyone at least once in their life glued some wooden parts, repaired broken things or pieces of furniture.wood gluingproduced by slightly different methods than joining, for example, rubber or plastic products. It is not required to perform standard operations: applying the composition, drying for about 10-15 minutes and pressing the parts strongly against each other.

Wood requires a different approach, which is due to the structure of the material, the individual properties of each species. It requires a different adhesive composition that can be absorbed into the material and create a strong film. Many formulations have now been created, from old-fashioned traditional carpentry adhesives to the most modern synthetic formulations. Question,how to glue a tree, not at all simple.

Varieties

Materials for gluing wood have different composition and appointment.

Some of them are universal, connection wooden parts they are just one of many uses.

Others are intended only for gluing wood and have no other uses.

Choosing how to glue wood to wood, you should decide on the type of composition and its properties, which should be discussed separately:

PVA

One of the most common compositions familiar to everyone since school days. Polyvinyl acetate dispersion, as this composition is correctly called, can be used to glue paper, wood and other materials. The main condition is the ability of the bonded material to absorb moisture. It has the appearance of a milky white thick liquid. When dry it becomes transparent. Mostly, PVA glue is used for gluing wood , since it is very convenient for this. Its features:

  • is issued in a ready-to-use form;
  • dries fairly quickly;
  • does not stain the gluing, the glue squeezed out when compressing the parts can be removed without consequences;
  • diluted with water, the adhesive that has fallen on a clean surface is easily washed off or wiped off with a damp cloth.

There are different brands of PVA glue designed for construction works, universal or carpentry compositions. Setting time - about 20 minutes (depending on the brand), complete drying - 24 hours.

Attention!If PVA glue was stored in an unheated room and froze, then after thawing it cannot be used.

Epoxy

It is a two component compound consisting of epoxy resin and hardener.. Being mixed in desired proportion, the material solidifies into a solid solid mass.

The curing process of the composition is purely chemical in nature, so the presence of air is not required for this.

It is noteworthy that epoxy adhesive not intended exclusively for wood , it can bond a variety of materials that do not have chemical conflicts with the adhesive components.

For him has importance the correct dosage of the components when mixing: if there is too much hardener, then the mixture “boils”, bubbles and quickly turns into a solid foam mass. With a lack of hardener, the mass does not gain the desired strength. Freeze time at different brands can vary from several minutes to one day, most often - several hours.

bf

Glue BF in wide use appeared in the late 70s and early 80s of the last century. It was believed that this is the most versatile and reliable composition, capable of tightly connecting anything. In fact, this is not the case, the material has a lot of restrictions or conditions for use.Designed for bonding metals with non-metals, plastics and other materials.Wood is not exactly absent from this list, but it is far from the first place. However, if neededwood glue, waterproof and frost resistant, then the brands BF-2 or BF-4 fully correspond to this definition. The gluing technology is quite inconvenient: the need to apply an adhesive layer, dry it “to the touch” and compress the parts for a while to gain strength of the adhesive layer.

Heat resistant compounds


Wood according to your technical properties not subject to heat treatment. Therefore, specialized adhesive thermal compositions for gluing wooden products simply do not exist.
, but some types of heat-resistant compounds can be used for these purposes.

Exist different kinds such compositions. These can be synthetic mixtures, various modified varieties of epoxy glue.

This group can include special material, produced in the form of rods, which is applied with a glue gun. Melted up liquid state the material is applied to the surface to be glued and pressed tightly against the second part. This method is simple and convenient, but requires the constant purchase of adhesive rods and connection to the mains.

carpentry

Joiner's (glutinous) adhesives are one of the oldest groups, used in ancient times. In our timewood gluemainly used for restoring antique furniture or repairing acoustic musical instruments. The reason for this limited use- the difficulty of working with wood adhesives, which are sold in dry form and require preparation for use.

Joiner's adhesives are of several types:

  • bone;
  • mezdrovy;
  • sturgeon.

The first two are made from horn plates or animal skins, the last one is made from sturgeon skin. It is believed that bone composition better than mezdrovy, and it is very difficult to find sturgeon, it is used mainly by violin or guitar masters.

Important!The main feature of wood glue is reversibility. The adhesive can be soaked in hot water, taken apart for repair and reconnected without damaging the material of the part.

Syndeticone


Syndeticoneglue for gluing wood to wood- a modification of wood glue, invented in 1878.

Since then, this composition has been widely used for a long time, but today its use is almost complete.

It is noteworthy that the name of the glue does not indicate any initial composition, it is only a reference to the original name of the glue - "Syndeticon", as the inventor called it.

The composition includes the following components:

  • wood glue;
  • sugar;
  • slaked lime.

It takes about a day to make it, which also became the reason for the refusal to use it.

polyurethane

Polyurethane adhesive for woodhas high performance and high cost. The composition is suitable for gluing wet wood, can be used both indoors and outdoors. The glue foams when dry, filling possible cavities and stopping moisture or cold from accessing them. The glue joint can be operated at temperatures from -30° to + 100°, in addition, polyurethane is the bestwaterproof glue for wood.

casein


Another very old natural composition. Its main component is casein, a milk protein obtained from low-fat cottage cheese. Available in the form of granules from brown to white - the higher the quality, the lighter the granules.

The material is truly universal - in addition to gluing wood, it is used in manufacturing, painting, and printing.

Traditionally used as an environmentally friendly glue for furniture high class. At the same time, the surfaces to be glued must be protected from getting glue on the front parts of the parts, since it is quickly and deeply absorbed, leaving dark spots. In addition, the material is hygroscopic and can deteriorate: become moldy, there is a possibility of insects. It must be stored in a tightly closed container.

Pasty

Pasty adhesives are used to connect poorly profiled parts. Thick material fills small voids like putty, sealing the seam and stopping moisture, cold or other undesirable influences. Usually gluing wood is not among the main specializations of such compositions, but for uneven surfaces this choice is fully justified.

Basic properties

good glue for wood must have a number of specific qualities:

  • strength;
  • resistance to water;
  • good adhesion to any type of wood;
  • non-toxic composition;
  • versatility of use;
  • high drying rate;
  • the composition must be sold in a ready-to-use form;

Many modern compositions have such properties, for example,wood glue "Joiner". Most traditional adhesive compositions, for all their merits, require too long and laborious preparation, which makes the work inconvenient and reduces productivity.

When choosing glue for wood, you should pay attention to some points:


  1. If gluing is done forever, then it is best to use some kind of synthetic irreversible composition. For connecting parts that can later be disassembled, for example, musical instruments, it is better to choose traditional types- bone, casein and the like.
  2. Do not use casein glue to glue light wood. The seams will darken, the work will look sloppy. The best choice is Joiner glue, which, when dried, becomes approximately the same color as the wood.
  3. When buying PVA glue, pay attention to its consistency. If there is a stratification of the material into more liquid and thick fractions, then the adhesive was frozen during storage or transportation. Such material cannot be used, it has lost its qualities.

Homemade composition recipes

Some traditional types of glue can be prepared independently at home:

  • Casein glue is made from fat-free cottage cheese, which is soaked in a soda solution and washed under running water. Then the mass is dried to the state of a dry powder, which is diluted with water immediately before use.
  • Sometimes an ordinary paste helps to get out of the situation. It is brewed from flour (6 tablespoons per 1 liter of water) by adding an aqueous solution of flour to boiling water. The mixture is brought to a boil, cooled and used for its intended purpose.
  • Carpentry glue is made in a water bath: in a container in a container with hot water heated on a stovetop. Ready wood glue has a liquid and fluid consistency, is used asfurniture glue for wood.

Important!Wood glue has a sharp, stale smell, sometimes even too sharp. Before you cook it, you should consider whether to use the finished composition.

General rules for gluing

Each type of glue has its own specific uses. The general rules include the need to clean and dry the surfaces to be glued, pre-dry assembly without glue to check the accuracy of the fit. If the parts cannot be pressed together with a little hand force, then you need to postpone gluing and fit them better. The connected parts are pressed and fixed with clamps until the glue dries completely (usually it is recommended to withstand them for 24 hours).

The use of glue to join wood pieces is old-fashioned but quite efficient technology. Modern synthetic compounds are able to repeatedly increase the strength and stability of the connection, ensuring high-quality service of the glued parts.

Specialists working with wood are well aware that one cannot do without a high-quality adhesive composition, neither in the manufacture of furniture, nor in small repair work Oh.

Can be used like good old recipes adhesives for wood, and purchase modern mixtures that act quickly and efficiently and are actively used in production.

The choice of adhesive depends on the task at hand. Some options will help connect the parts together, others fix wooden product, others are suitable for processing junctions and protection from moisture.

Modern adhesive mixtures differ in heat and moisture resistance, fast solidification, durability and strength of the connection.

Types of adhesives for wood - how to glue

Consider the most popular types of wood glue.

  1. Joiner's glue. It is traditionally made from animal bones and skins. Adhesive properties are attached to the protein included in its composition. Until relatively recently, wood glue was actively used in the furniture industry and woodworking. Today it is rarely used, except for hand veneering. It is sold in the form of granules or grains, which must be dissolved in water using a special glue cooker. Jelly-like glue is also available and is liquefied directly in a glue pot or in a container placed in hot water.
  2. Animal Based Blends safe, non-toxic, give a solid adhesive seam, amenable to grinding and re-softening. Worthy of attention and moisture resistant wood glue casein. It holds wood well, as well as paper, leather, and various fabrics. Casein powder is mixed with water until the consistency of liquid sour cream is obtained. Then it is applied to the parts and left for five minutes. Next, the parts are tightly compressed. It can leave marks, so use it carefully.
  3. Hot glue. To use hot melt, presented in the form of cylindrical sticks, you need a hot-melt gun. The composition is convenient, quickly hardens, therefore it is actively used for the manufacture of templates and models. Also in stores are adhesives in the form of thin sheets. They are placed between the base and the veneer and heated with an iron.
  4. PVA wood glue. PVA is available, inexpensive and convenient option. An aqueous PVA emulsion hardens due to the evaporation of moisture or its absorption by a tree. The non-toxic composition is perfect for simple repairs at home. The shelf life is almost unlimited if stored at room temperature. Semi-plastic PVA is characterized by a tendency to "creep", but this property usually manifests itself under increased load. Standard PVA is not resistant to moisture, however, manufacturers offer waterproof solutions for outdoor work. Yellow with a thick PVA consistency is characterized by more high resistance to moisture and heat than white, and is easy to sand.
  5. Urea-formaldehyde adhesive. It is considered a waterproof composition that fills cavities well, hardens quickly. Available as a powder to be mixed with water and then applied to both surfaces. Some adhesives are made and shipped with a hardener that is applied to one part and a mixture of powder and water to the other. The connected parts are additionally fixed for grasping with a clamp. When working, be sure to use goggles and gloves, provide access to fresh air.
  6. Resorcinol adhesive. This option is resistant to various weather conditions, such as sun and moisture. It is a two-component, consists of a hardener and resorcinol-formaldehyde resin. Some types of the mixture are sold immediately in liquid form, or one of the components has a powder composition. The glue, after hardening, gives a brown seam, which will be noticeable when working with light wood. For faster solidification, a temperature of at least 15C is required.

Wood gluing technology - blanks and parts

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In general, the order of gluing is as follows:

  • surface preparation,
  • applying the adhesive mixture
  • exposure before pressing,
  • pressing and holding under pressure,
  • exposure after gluing.

Surface preparation

For successful gluing of wood, it is necessary to thoroughly clean the surfaces, degrease them, make them smooth and even. The presence of roughness will not help to obtain a better seam, so they try to get rid of them.

Adhesive technology

  1. Usually the mixture is applied in an even thin layer on both parts. Two-component options are applied differently - a hardener is applied to one part, a second resin, and then the parts are combined to start the reaction.
  2. Most often, it cannot do without clamping parts, for example, using clamps. As a result of close contact, excess adhesive is squeezed out, and while it has not hardened, they can be carefully removed with a damp cloth.
  3. If a contact adhesive is used, the parts will bond immediately after joining. Some types allow for some time to correct the position of the parts before setting.
  4. Also, depending on the technology and method of fastening wooden parts, they are divided into two groups - cold and hot gluing.

Cold bonding of wood

This method bonding does not involve heating the mixture. For work you will need:

  • glue,
  • clamp,
  • wimes,
  • special clamps.

Clamps are cold pressing equipment, indispensable in gluing parts from timber, frame, panel. Cold bonding involves the use of compounds based on PVAD. Due to the water base, the glue is quickly absorbed into the wood and gives reliable connection. Hardens in an average of 15-25 minutes, then requires holding under pressure for an hour.

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Hot bonding of wood

This technique is convenient when gluing thin sheets, it involves heating the adhesive with electricity or steam. After heating, it hardens in 30-40 seconds.

Presses for gluing wood are divided into:

  • inclined, horizontal, vertical depending on the location of the shield,
  • electromechanical, manual, hydraulic, pneumatic, depending on the type of drive,
  • positional and pass-through type based on the mode of operation,
  • steam, electric, HDTV, water, depending on the type of heating.

Glue is applied to the parts in advance, then placed in hot gluing presses. Pressing takes up to 5 minutes, and the complete solidification of the adhesive occurs already outside the pressing equipment.

Thus, for high-quality and reliable connecting wood parts with glue today you can use both inexpensive PVA, which are suitable for home use, and professional types from well-known manufacturers. The latter provide a strong and durable connection of parts in industrial scale, facilitate the work of craftsmen in the manufacture of furniture and other structures made of wood.

Specialists working with wood know that the glue for this material must be reliable, durable, waterproof. Moreover, non-toxicity and versatility, as well as cost, play a big role. As you can see, there are many factors influencing the choice of the buyer. But, how can an ignorant person determine which glue to choose so that the acquisition meets all the requirements? Considering what is offered on the market today the widest range, it is difficult for a potential consumer to make right choice. Therefore, in order not to be mistaken with the purchase of wood glue, it is necessary to study the features of this material.

How to glue wood?

The retail network offers a wide variety of wood adhesives, which have individual characteristics and characteristic differences. The most popular types of wood adhesives:

  • PVA. Everyone is familiar with this composition from childhood. It perfectly glues wood surfaces, it takes 24 hours for final drying.
  • Adhesive compositions BF. The main advantage is high strength and durability. It takes no more than an hour to dry completely. If necessary, accelerate the solidification process, the mixture can be heated.
  • Water Resistant Wood Adhesive – t It contains one component that is suitable for bonding any type of wood.
  • Adhesive syndeticone composition. Before use, it is required to heat and wait for the swelling of the composition. The time of complete drying is at least a day.

  • The best glue for wood, which is widely used among the people - "Moment".
  • If necessary, use a moisture-resistant adhesive, epoxy is recommended, which exhibits high resistance to oily compounds.
  • The best material for wood splicing is Kleiberit. It is waterproof, reliably connects the layers of wood.
  • The composition based on polyurethane allows you to fill the structure of the tree, creating a complete product.
  • Casein glue is waterproof and resistant to heat.

Characteristics

One of the most common adhesive compositions is pva glue for wood. It is non-toxic, absolutely safe material with an unlimited shelf life. PVA is easily applied to the surface, securely connects the wood. This type of adhesive is used in furniture production. However, you need to know that PVA has low water resistance and moisture resistance. Therefore, it is not recommended to use it for gluing materials that are supposed to be used during wet rooms and on the street.

For a reliable connection of wood on adhesives, compositions from the BF series are often used. These types of adhesives have frost resistance, elasticity. Thanks to these characteristics, BF adhesives can be used by hand for outdoor work, as well as for joining wood with metal, glass, and plastics. BF formulations should be applied to a previously cleaned and degreased surface. The initial layer, which acts as a primer, is left to dry for an hour. After that, a second layer is applied and the two halves of the product to be glued are connected, and left until completely dry.

Syndeticone glue is an excellent tool for bonding wood to other materials. This composition includes dry wood glue, slaked lime and sugar. It has high strength characteristics and resistance to atmospheric influences.

The adhesive composition based on polyurethane is very popular because it exhibits high resistance to temperature extremes, humidity, and is suitable for gluing hardwoods.

Today, more and more often, do-it-yourself woodworking professionals use mounting adhesive for wood. It is versatile, heat resistant, durable low temperatures. The composition of the mounting adhesive includes water-based acrylic, which indicates its safety for the environment.

Casein glue is moisture resistant. It is excellent for gluing wood, paper, fabrics, cardboard, leather. To obtain an adhesive composition, casein powder should be mixed with water and brought to a state of sour cream. To achieve the desired consistency, the composition must be mixed for an hour. After that, the mixture can be applied to the surfaces and, after a five minute exposure, they can be joined. When using casein glue for gluing wood products, you need to remember that this composition leaves stains on the surface. Therefore, you need to work with it very carefully.

Summing up, we see that there are many adhesive compositions for gluing wood. Choosing suitable look adhesive, water resistance, versatility, reliability and resistance to temperature extremes should be considered. If you want to splice wood, the best choice is Kleiberite. In other cases, you can use PVA, BF, Moment.

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