Glue for gluing wood products. Moisture-resistant wood glue - what to opt for. Technology of gluing wood - blanks and parts

1. Compound
2. Mezdrovy
3. Isinglass
4. Bone
5. Casein
6. Moisture resistant
7. How to prepare the mixture
8. Titebond
9. Moment
10. Titanium
11. Selection rules

Joiner's glue is intended for joining parts made of paper, cardboard, wooden boards, bars, hardboard. The material is inexpensive, safe, and has a natural composition.

Compound

The base of wood glue, the main agent is animal protein.

By the type of raw material, there is glue:

• mezdrovy,
• fish,
• bone,
• casein,
• polyvinyl acetate (PVA),
• moisture resistant.

All types are used for carpentry work.

Mezdrovy

The main active ingredient is obtained from the processing of animal skin. Protein is the subcutaneous layer without adipose tissue. It contains oligopeptides. They contain cysteine, which forms bridges-bonds for a reliable connection of parts.

Mezdrovy carpentry glue is produced in the form:

• powder,
• tiles,
• scales.

Isinglass

For the production of fish glue, fins, scales, swim bladders are used. The result is a solution suitable for gluing similar and dissimilar surfaces. The only drawback is the high price. Glue is produced in the form of dry flakes and granules.

Bone

They are made from the bone remnants of animals. The composition includes:

• collagen,
• gelatin,
• cysteine.

These substances are viscous and reliably glue the surfaces of wooden products. The price of the material is low. You should choose transparent compositions: they are better than unrefined, cloudy, with impurities.

Casein

Includes:

• casein,
• kerosene,
• copper sulfate,
• sodium fluoride,
• slaked lime.

Flaws:

• Significant volume shrinkage.
• Changing the color of the glued surfaces.
• The prepared solution has a short shelf life - several hours.

Bonds wood parts well.

Raw materials for the preparation of casein glue solution are produced in the form of a dry powder.

PVA

PVA glue is used in joinery and other areas. The solution is sold ready-made.

Characteristics:

• elasticity,
• reliable grip,
• transparent layer,
• stability of the finished seam.

PVA adhesives differ in properties. Some are waterproof, quick dry.

Moisture resistant

Waterproof mortar for gluing wood can be prepared from slaked lime and freshly curdled curd. The components are mixed in certain proportions to a working consistency.

How to prepare the mixture

To prepare the working material, take ready-made grain, dry powders, tiles, granules. They are thoroughly crushed, diluted with warm water according to the instructions. Swelling of active components is awaited. Then use. Store in a hermetically sealed container. All formulations, except for casein, retain their sticky properties for several days.

The method of preparation is prescribed in the instructions on the package.... The composition of the mixture may differ from manufacturer to manufacturer. Consistency matters. The description of the specific glue indicates the required amount of water. It is designed to produce a mixture of a specific viscosity. If a more liquid material is needed for work, the liquid is added in small portions, each time the paste is thoroughly mixed.

Before gluing the surfaces to each other, they are cleaned and degreased. Then the solution is applied with a thin layer on one of the parts, the planes are pressed. To increase the effect, a load is placed on top, it does not allow the workpieces to disperse. Bonding takes place in 2-3 hours, drying - in 2-3 days. The exact terms and conditions are spelled out in the technical characteristics of each composition.

Modern synthetic based adhesives

Ready-made adhesives of industrial production are often used: Titebond, Moment, Titan.

Titebond (from 200 rubles, 0.296 l.)

The Titebond wood glue of the American company Franklin International is used in the production of plywood furniture, wood flooring, and in woodwork. Formulated with solvent-free synthetic and natural polymers. This allows for excellent adhesion of surfaces without damaging them.

Titebond II Premium joiner's glue is a high-quality replacement for traditional wood and paper glue. It is used in the production of door and window blocks, frames, furniture assembly. This is a composition with a high level of moisture resistance, can be used for outdoor work, assembly of external door and window fillings, fastening decorations to a wooden facade.

Bonding strength reaches the value of wood strength. The connection remains intact for many years.

Moment (from 300 rubles)

The Henkel Moment Super PVA D3 wood glue has a Soviet counterpart - DF51 / 15V. It is a good waterproof adhesive for bonding paper, cardboard, plywood, and other wood-based materials.

Waterproof PVA is added as a plasticizing agent to concrete solutions to increase the plasticity and water resistance of the working mass, the finished stone. Bonding with cement mortar improves adhesion to the surface to be covered with screed or tiles.

The letter D in the name indicates the degree of resistance of the material to water, 3 - a sufficient level. 4 - higher class, used for special work, expensive.

Titanium (from 200 rubles for 500 ml)

Glue "Titan" is universal, reliably glues:

• plastics,
• glass,
• paper,
• wood.

It is often used to make various wooden products.

"Titan Universal" is a fast-drying adhesive suitable for working with wooden surfaces. It quickly gains strength, reliably connects surfaces without damaging them, and becomes transparent.

Glue-mastic is suitable for finishing works, gluing wooden beams, boards, rosettes.

Liquid nails are also compatible with wood and can be used for finishing and decorative elements.

Selection rules

Necessary:

• Consider the scope and specifics of the work. When processing a large amount of wood, it is better to give preference to powder semi-finished products due to their low price.
• Pay attention to the characteristics, select the solution according to its physical properties.
• Find a suitable glue in consistency.
• Carefully read the information on the label, read the product reviews.

Wood products, decoration from various wood species, wood as a building material are always popular. Wood is a beautiful, warm, stylish material that lends itself well to processing. In the manufacture of various panels, parts, fragments and compositions, along with fasteners, wood glue is required. Which of its several varieties is better to choose, what features and properties each of them have - let's figure it out.

Every day, new varieties of glue for wood appear, and the well-tested ones are constantly being improved, their characteristics are improving. The choice of such an adhesive depends on the characteristics of the product or construction made of wood, the required properties after manufacture.

PVA

Children's crafts, paper applications and various volumetric paper toys are strongly associated with this name. But polyvinyl acetate (PVA) glue has worked well for wood. Many carpenters and wood craftsmen like to work with him. The disadvantage of PVA is the instability to moisture. Therefore, it is not suitable for outdoor use and damp areas. However, it is convenient to work with, it is inexpensive, and dries quickly.

Recently, moisture and even waterproof PVA have appeared. They are resistant to moisture, but much more expensive than conventional glue. Another advantage of PVA is its lack of toxicity.

Carpentry glue

There are types of glue that are resistant to chemicals, oils, surfactants. There is wood glue for wood, waterproof, frost-resistant, resistant to fuels and lubricants, or, conversely, for temporary gluing - its layer can be easily destroyed with a hammer, the parts can be separated with steam, water or heating. An important characteristic of wood glue is how fast it dries.

Which glue is best for wood is not entirely correct. The modern market offers a range of high quality gluing products for wood surfaces. It is best to stop your choice on the one whose characteristics meet all the requirements of the consumer. It is also useful to listen to the opinion of professionals, reviews of experienced craftsmen, wood specialists.

How to glue wood to wood

What kind of glue to glue wooden parts to each other depends on several factors:

• wood species, wood colors;
• where the glued structure will be permanently located;
• what impact will be exposed;
• the size of the parts to be glued, surfaces;
• what kind of load the adhesive must withstand.

Also important are the cost of the glue, its consumption, whether it needs to be prepared and for how long, the speed of drying and hardening. Knowing all these parameters, an experienced craftsman can easily determine which glue is best for this product, parts or structure.

In order to qualitatively glue wooden parts, structures, surfaces together and with other materials, you need to heed the advice of experienced carpenters, wood craftsmen. These tips include:

• the quality of gluing depends on the quality of the glue and the quality of its preparation;
• the most liquid glue is used to glue the ends of parts, it fills pores and irregularities well;
• before gluing, the surfaces must be carefully prepared - precisely fit and roughened with a rasp to ensure better adhesion;
• surfaces or parts to be glued must be clean, free from greasy spots, dust, dirt;
• the quality of the connection depends on the thickness of the glue layer, you need to apply not too thick, but not a thin layer, it must be dense and uniform;
• the excess glue that is squeezed out must be immediately removed with a rag so that the glue does not dry out, does not spoil the appearance and color of the wood.

On the modern market there are more and more different options for gluing wood species. Thus, the question arises - how to choose the right glue for wood? In order to answer it accurately, it is necessary, first of all, to determine the type of the surfaces themselves that we will glue, and the purpose of the glue itself. In this article we will try to tell you how to properly glue wood with wood and other materials.

What kind of glue to glue the tree, which one is better?

There are various options for this glue:

- PVA glue for wood.

We all know white, translucent glue, which instantly "grasps" the glued surfaces of all types of materials. We have known him since school, when the teacher suggested using PVA in fine arts lessons.

Why PVA? It is one of the few “fast” adhesives that can bond surfaces within twenty minutes. Moreover, when it comes to gluing wood species, a completely similar glue hardens within 24 hours. Accordingly, in a day, the surfaces will be firmly glued, and it will be possible to create various types of loads.

- BF series.

There are various options for BF glue, each of them comes under its own number. The most popular are BF-2, BF-4, BF-6. If you reach a certain temperature - up to 80 degrees - you can accelerate the "adhesion" up to fifteen minutes, and at normal room temperature, such a substance will firmly glue the wood in an hour.

- "moment" for a tree.

Moment glue is the most common brand of glue for a variety of construction-related tasks. But we ask ourselves - which glue is best for wood? In accordance with our request, the manufacturers of "moment" produced a special substance, "moment" glue for wood. They can glue absolutely any surface.

If our task is to answer the question: what glue is better to glue the tree to the tree, then the "moment" also answers it and other questions related to gluing wood species with any other material.

- heat-resistant glue.

The most popular for those types of work, including carpentry, where the tree species is exposed to various thermal influences. It does not deteriorate and does not stick surfaces even at high temperatures.

In this case, many are racking their brains: what kind of glue should be used to glue the tree, if subsequently it will be exposed? The answer to this question is heat resistant adhesive. Unlike similar ones, it does not crumble and does not collapse by itself, and does not destroy the structure of the glued surfaces when exposed to heat.

- casein glue

This glue, unlike the previous one, has the purpose of a waterproof glue. That is, the surfaces to be treated can be exposed to a large amount of moisture along with high temperatures. Among the known adhesives, this one is one of the most popular, completely cures in 20 hours, and "setting" takes place in 8 hours.

- wood glue

Joiner's glue is a solution designed for gluing and joining various objects made of wood or plywood, fiberboard. To create this glue, two types of compounds are used: flesh and bone. The first type is considered to be the most effective, and the seams obtained as a result of its application become as strong and durable as possible. At the same time, much depends on adherence to the technology for preparing the glue.

When gluing surfaces with this solution, it must be applied to the main surface once, and to the end surfaces twice. After applying and gluing, the surfaces of the products to be glued should be firmly pressed together only after a few minutes, then the joiner's glue will not come out. In order for the seam to be the most even and strongest, the thickness of the glue should not exceed 0.1 - 0.15 mm.

- epoxy adhesive

Epoxy glue has become very popular, because in addition to wood, it can glue any known materials, it can perfectly smooth the surface, and quickly fills any cavities with itself. When the mixture dries, it simultaneously acquires the ability to isolate electricity and is immune to many chemically aggressive substances, it does not affect fat, oils, surfactants.

It is necessary to glue wooden products both in production and in everyday life. To obtain a strong and durable bond, it is important to select a high-quality and suitable adhesive composition. Joiner's glue should not only securely hold natural wood, but also various building materials with a wood base. Often it is necessary to glue metal, ceramic, plastic, etc. parts to wood. This point must also be taken into account when choosing an adhesive. Currently, few people use homemade carpentry mixes, even among professionals. There is a wide range of compositions for working with wood on the construction market. The following compositions are in greatest demand.

• Polyvinyl acetate dispersion is hidden under the designation of PVA glue. It is non-toxic, so the product can be used in rooms without exhaust ventilation. PVA glue dries quickly, withstands high static loads, but is afraid of prolonged exposure to a humid environment. Due to its affordable price, it can be used for domestic purposes.
• Polyurethane compounds are much more expensive. But they have several important advantages. The seam is able to withstand high dynamic loads, so the glued chair leg will not fall off after a while. The glue is resistant to moisture, ultraviolet radiation, temperature extremes. These qualities make it possible to use items in extreme conditions.
• Resin adhesives are sought after by woodworkers and ordinary homeowners. Many have used epoxies more than once, which provide the strength of the connection between wood and other materials. Adhesive compositions of this type are not only not afraid of water, but also resistant to the influence of oil products and aggressive compounds. When working, care must be taken to protect the skin.
• Modern adhesives on a synthetic basis are widely used in the mass production of wood products, furniture, windows, doors, etc., are completely harmless and have improved characteristics compared to household mixtures. The only drawback is the higher price.

Our review includes the best adhesives for wood. When compiling the rating, reviews of domestic consumers were taken into account.

The best PVA glue

PVA-based glue is in well-deserved demand not only in office supplies, but also when working with wood. This eco-friendly product does not leave marks, has good adhesion, but is not able to withstand moisture for a long time.

3 Moment Universal PVA Joiner

The best domestic glue
Country Russia
Average price: 211 rubles. (750 ml)
Rating (2019): 4.8

The best glue of domestic production in our review was Moment Joiner PVA Universal. It is an aqueous dispersion of PVA. With this glue, you can connect different types of wood, as well as building materials such as plywood, MDF, fiberboard, chipboard, veneer, paper-laminated plastic. The parts must be pressed together for 15-20 minutes using a clamp or a vice. The final holding time of the parts before the start of use is 24 hours. Joiner's glue does not color the wood, which expands the scope of its application. The composition can be used at a positive temperature in the range of +5 ... 30 ° C.

Professional carpenters and home craftsmen highlight such qualities of glue Moment PVA Joiner Universal, such as short setting time, strength, accessibility, transparency after drying. The disadvantages include the fear of moisture and low temperatures.

2 Krass PVA PVA D3

The most transparent glue for wood
Country: Poland
Average price: 195 rubles. (500 ml)
Rating (2019): 4.9

In order not to spoil the appearance of the parts to be glued, professionals prefer Krass PVA PVA D3 glue. It is suitable for joining different types of wood. The product is used in the production of garden and kitchen furniture, parquet and laminate installation. The material is also in demand in the manufacture of windows, doors, beams, plywood, veneer and particle boards. Distinctive features of PVA glue are water resistance (class D3) and transparency of the dried layer. In addition, the seam has elasticity and strength. Thanks to its unique properties, it is possible to glue even damp wood. The composition contains no organic solvents, which makes the material environmentally friendly.

Domestic carpenters speak flatteringly about such qualities of Krass PVA PVA D3 glue, such as water resistance, crystal transparency of the seam, elasticity, and affordable price. The disadvantages include a long drying time.

1 Kleiberit 303.0

The most waterproof PVA glue
Country: Germany
Average price: 232 rubles. (0.5 kg)
Rating (2019): 4.9

Kleiberit 303.0 waterproof glue has the best technical characteristics. The material occupies a leading position in the construction market, its quality is time-tested. A high-quality product with universal properties, it can be used to bond various types of wood, veneer and chipboard products. A distinctive feature is the ability to bond exotic and hard wood. Parts should be pressed against each other for 6-10 minutes at a temperature of + 10 ° C. After drying, the glue layer is white, and its frost resistance reaches -30 ° C.

Domestic consumers distinguish such properties of Kleiberit 303.0 PVA glue as water resistance, frost resistance, strength, and quick setting. The disadvantages include the need for strict adherence to the requirements of the instructions.

The best polyurethane adhesives

When the glue requires high strength, long-term resistance to mechanical stress, resistance to moisture and negative weather conditions, then the best option would be to use a polyurethane compound.

3 Akfix PA370 D4

Fast drying and excellent heat resistance
Country: Turkey
Average price: 500 rubles. (0.56 l)
Rating (2019): 4.7

Ready-to-use one-component polyurethane-based Akfix PA370 glue is able to quickly and efficiently glue wood to metal, concrete, foam, and various plastics. Ideal for repairing wooden boats, yachts and boats, due to its resistance to water and aggressive environments. It should be borne in mind that during the drying process, the glue slightly increases in volume, increasing the quality of the connection of porous materials.

The glue has proven itself well in the carpentry industry in the manufacture of furniture, windows, doors, or layer-by-layer gluing of wood in complex structures. To obtain the best possible connection, the ambient temperature should not be lower than + 5 ° C, and the parts to be connected should be slightly damp. Not dried glue residues can be easily removed with acetone. The maximum temperatures at which the glue line does not lose its properties are from -40 to +100 degrees Celsius.

2 SOUDAL 66A

Highest adhesion
Country: Belgium
Average price: 400 rubles. (250 ml)
Rating (2019): 4.9

The Belgian glue SOUDAL 66A boasts the highest adhesion. It is a polyurethane compound that can withstand harsh conditions. Super waterproof material allows you to glue any kind of wood products, including damp ones. It can be used to join wood with most building materials, with the exception of PE and PP. In the process of hardening, the composition foams, due to which cracks and irregularities are filled. A strong seam retains its working qualities in a wide temperature range (-30 ... + 100 ° C). The high adhesive capacity allows the adhesive to be used in the most demanding carpentry and joinery work, both indoors and outdoors.

Carpenters and joiners praise SOUDAL 66A for its excellent adhesion, high bond strength, and water resistance. Among the disadvantages, professionals single out a decent expansion and a high price.

1 Kleiberit 501.0

Best all-round adhesive
Country: Germany
Average price: 397 rubles. (0.5 kg)
Rating (2019): 4.9

The best all-purpose adhesive in our review is Kleiberit 501.0 from Germany. The glue is based on a polyurethane composition, which gives the material such properties as moisture resistance and heat resistance. The one-component composition is easy to use. It can be used not only for gluing two pieces of wood. Various combinations of materials are possible, for example, PVC, mineral plates, ceramics, concrete, etc. The glued units can be used not only indoors, but also outdoors in the rain or scorching sun. The flawless quality of the product is confirmed by international standards (DIN / EN 204, WATT 91). The seam hardens completely after 24 hours.

In the reviews of domestic users, positive statements prevail. Kleiberit 501.0 glue is easy to use, it does not drip, and the connection is strong. But it is very difficult to wash your hands from the adhesive, and good ventilation of the room is also required during work.

The best resin based wood adhesives

A number of useful properties are possessed by glue based on various resins. It does not change the color of the wood, has excellent adhesion, has high strength and electrical insulating properties. But when working with him, it is important to ventilate the room well and use personal protective equipment.

3 EDP epoxy adhesive

Best price
Country Russia
Average price: 63 rubles (100 g)
Rating (2019): 4.7

A reliable universal means for gluing wood is EDP epoxy glue. It is very popular with professionals and amateurs due to its affordable price. The tool can be used to make new wood-based products or to repair broken pieces of furniture. The seam is characterized by high strength, no shrinkage, good adhesion, moisture resistance. The only exceptions are objects that have contact with food (dishes, countertops). EDP ​​glue has been tested for years, its properties do not cause doubts among consumers.

Domestic users out of the merits note the low price of EDP glue, the exceptional strength and durability of its seam. Various fillers can be added to the composition. Of the minuses, there is a long curing time, getting a cloudy seam and inconvenience in work.

2 Uhu plus endfest 300

Strongest adhesive
Country: Germany
Average price: 428 rubles. (2x15 ml)
Rating (2019): 4.9

Two-component glue Uhu plus endfest 300 possesses extra-strong properties. It is made on the basis of epoxy resin, which allows a wide range of materials to be glued to wood. Exceptions are glass, PP and PE parts. The glue sets within 90 minutes. Finally, the seam hardens within 12-24 hours, after which it acquires impact strength, resistance to aging and resistance to moisture. To obtain a high quality working solution, it is necessary to mix both components according to the manufacturer's recommendations. After that, thorough mixing is performed until a homogeneous mass is obtained. The prepared glue is applied with a brush or spatula.

Professionals and amateurs note a number of positive qualities of Uhu plus endfest 300 glue. First of all, it is distinguished by its super strength, resistance to mechanical stress, and moisture resistance. The disadvantage of glue for many users is the need to prepare a working mixture.

1 Titebond Original Wood Glue

Best professional glue
Country: USA
Average price: 195 rubles. (236 ml)
Rating (2019): 5.0

Titebond Original Wood Glue was created for professional activities. The composition is based on an emulsion of an aliphatic resin. After drying, the seam is durable, it has a transparent yellowish structure. The film is not afraid of exposure to water, it can withstand a strong shock load. The main purpose of the adhesive is to join wood products. This product has proven itself especially well for gluing tenon and groove structures. The emulsion penetrates deeply into different wood species, forming a strong bond. In addition to natural wood, this glue can be used to work with parquet, plywood, fiberboard and chipboard. It is convenient to use the glue, since the film sets immediately, and quickly hardens when pressed.

Many professional joiners and builders use Titebond Original Wood Glue as the best option for the job. The only drawback is the high price.

Modern synthetic based adhesives

Ready-made mixtures with harmless additives, which increase the adhesion strength of surfaces and the duration of operation, are especially popular with joinery specialists.

3 Forbo 650 Eurostar Fastcol

High fixation
Country Russia
Average price: 1900 rubles. (3 l)
Rating (2019): 4.6

A distinctive feature of Forbo 650 dispersed contact adhesive is its ability to withstand high dynamic loads on difficult surfaces such as steps and walls. The adhesive has great versatility and is perfect for joinery, allowing wood to be glued to absorbent and non-absorbent substrates.

The adhesive is free of solvents and low emission. After application to the surface and its complete drying (about 1 hour), the parts to be glued should be connected. The quality of adhesion depends on the amount of adhesive applied, therefore, for an even and optimal layer, it is better to use the structured roller included in the kit. The thermosetting properties of the glue allow you to separate the glued parts with a building hair dryer.

2 Quilosa Bunitex P-55

Does not lose its properties over time
Country: Spain
Average price: 480 rubles. (1 l)
Rating (2019): 4.7

Quilosa Bunitex P-55 multifunctional glue is based on organic mixtures of polychloroprene with the addition of synthetic rubber and is capable of creating strong wear-resistant joints of wood with all types of materials for industrial or household use. This glue is very often used in the carpentry industry when gluing wood products, chipboard panels, corrugated cardboard. For domestic use, the adhesive is best suited for the installation of cork.

The adhesive should be applied to both surfaces, which must be dry, smooth and free of dust. If the surface is porous, it is recommended to apply a preliminary layer, which forms a homogeneous film, and to glue the second layer. After bonding, the adhesive sets instantly, but the final strength is achieved after a few days. If all requirements are met, a high quality of the joint is achieved, which does not lose its properties over time.

1 Titebond III Ultimate Wood Glue 1415

The most harmless glue
Country: USA
Average price: 1000 rubles. (946 ml)
Rating (2019): 5.0

Among the huge selection of glue mixtures for wood, the one-component Titebond III Ultimate is the most popular among professional carpenters. It can be used for gluing any wood species with different types of butt joints (thorn, groove, tongue, etc.). The glue has increased moisture resistance and at the same time can be easily cleaned with water until it dries. The absence of toxic impurities makes it possible to use it in the manufacture of products in contact with food.

The glue is ideal not only for indoor, but also for outdoor work, withstanding high temperature drops after curing. Having the best adhesion density exceeding the wood itself, it is possible to carry out the final processing of products without the risk of destruction of the structure, and the absence of abrasive impurities will preserve the cutting edge of the tool. According to its characteristics, Titebond III glue is the only composition that meets the ANSY TYPE 2 moisture resistance standard and if the instructions are followed during work, there should be no complaints about the quality of this product.

Specialists working with wood are well aware that one cannot do without a high-quality adhesive, neither in the manufacture of furniture, nor in minor repairs.

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

The choice of glue depends on the task at hand. Some options will help to connect the parts to each other, others will fix a wooden product, others are suitable for processing joints and protecting them from moisture.

Modern adhesive mixtures are characterized by heat and moisture resistance, fast solidification, durability and strength of the connection.

Types of wood adhesives - 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 given by the protein included in its composition. More recently, it was carpentry glue that 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 machine. You can also buy glue that looks like jelly, it is liquefied directly in a glue machine or in a container placed in hot water.
2. Animal-based mixes safe, non-toxic, give a hard glue line that can be sanded and softened again. Noteworthy and moisture resistant wood glue casein. It holds well both wood and paper, leather, various fabrics. Casein powder is mixed with water to obtain the consistency of liquid sour cream. Then it is applied to the parts and left for five minutes. Further, the parts are squeezed tightly. It can leave marks, so use it with care.
3. Hot melt glue. To use hot melt glue, presented in the form of cylindrical sticks, you need a heat gun. The composition is convenient, quickly solidifies, therefore it is actively used for the manufacture of templates and models. Also in stores there are adhesives in the form of thin sheets. They are placed between the base and veneer and heated with an iron.
4. PVA wood glue... PVA is an affordable, inexpensive and convenient option. PVA water emulsion hardens due to moisture evaporation or its absorption by wood. The non-toxic composition is perfect for performing simple home repairs. 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 at 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 higher resistance to moisture and heat than white, and is easy to sand.
5. Urea formaldehyde adhesive... It is considered a waterproof compound that fills cavities well and hardens quickly. It is produced in the form of a powder that must be mixed with water and then applied to both surfaces. Some adhesives are made and supplied 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 gripping with a clamp. When working, be sure to use protective goggles and gloves, provide fresh air.
6. Resorcinol adhesive... This option is resistant to various weather conditions, such as sun and moisture. It is a two-component, consisting of a hardener and resorcinol-formaldehyde resin. Some types of 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.

Technology of gluing wood - blanks and parts

VIDEO ON TOPIC

In general, the gluing order is as follows:

• surface preparation,
• applying an adhesive mixture,
• holding 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.

Glue application technology

1. Usually the mixture is applied in an even thin layer to both parts. Two-component options are applied differently - a hardener on one part, a resin on the second, and then the parts are connected to start the reaction.
2. Most often, it is not done without clamping parts, for example, using clamps. As a result of close contact, excess glue is squeezed out, and while it is not frozen, they can be carefully removed with a damp cloth.
3. If contact adhesive is used, the parts are seized immediately after joining. Some types allow you to adjust the position of the parts for some time 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 of gluing does not involve heating the mixture. For work you will need:

• glue,
• clamp,
• vimes,
• special clamps.

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

VIDEO

Hot gluing wood

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

Wood gluing presses 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 straight-through type based on the operating mode,
• steam, electric, HDTV, water, depending on the type of heating.

Glue is applied to the parts in advance, then placed in hot glue presses. Pressing takes up to 5 minutes, and the glue completely solidifies outside the pressing equipment.

Thus, for a high quality and reliable joining 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 on an industrial scale, facilitate the work of craftsmen for the manufacture of furniture and other structures made of wood.