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

Joiner's glue is intended for connection of details from paper, a cardboard, wooden boards, bars, a hardboard. The material is inexpensive, safe, has a natural composition.

Compound

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

According to the type of raw material there is glue:

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

For carpentry, all types are used.

Mezdrovy

The main active ingredient is obtained by processing the skin of animals. Protein - subcutaneous layer without fatty tissue. It contains oligopeptides. They contain cysteine, which forms bridges-ligaments for reliable connection of parts.

Mezdrovy joiner's glue is produced in the form of:

• powder,
• tiles,
• scales.

Isinglass

For the production of fish glue, fins, scales, and swim bladders are used. It turns out a solution suitable for gluing identical and dissimilar surfaces. The only drawback is the high price. Produce glue in the form of dry scales and granules.

Bone

Made from animal bones. The composition contains:

• collagen,
• gelatin,
• cysteine.

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

casein

Includes:

• casein,
• kerosene,
• blue vitriol,
• sodium fluoride,
• hydrated lime.

Flaws:

• Significant shrinkage in volume.
• Changing the color of bonded surfaces.
• The short shelf life of the prepared solution is several hours.

Holds wood parts well.

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

PVA

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

Characteristics:

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

PVA adhesives differ in properties. Some are water-resistant, quick-drying.

moisture resistant

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

How to prepare a mixture

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

The cooking method is written in the instructions on the package.. Different manufacturers of mixtures may vary in composition. Consistency matters. In the description of a specific adhesive, the required amount of water is indicated. It is designed to obtain a mixture of a certain 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 a thin layer of the solution is applied to one of the parts, the planes are pressed. To increase the effect, a load is installed on top, it does not allow the workpieces to disperse. Bonding occurs in 2-3 hours, drying - in 2-3 days. The exact term and conditions are spelled out in the technical specifications of each composition.

Modern adhesives based on synthetic

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

Titebond (from 200 rubles, 0.296 liters)

Titebond wood glue from the American company Franklin International is used in the manufacture of plywood furniture, wood flooring, and woodworking. The composition includes synthetic and natural polymers without solvents. This allows you to get excellent adhesion of surfaces without damaging them.

Titebond II Premium Carpentry Adhesive is a high quality replacement for traditional wood and paper bonding compounds. 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, it can be used for outdoor work, assembling external door and window fillings, attaching decorations to a wooden facade.

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

Moment (from 300 rubles)

Joiner's glue "Moment Super PVA D3" manufactured by Henkel has a Soviet analogue - DF51 / 15V. This is a good waterproof adhesive used for gluing paper, cardboard, plywood, and other materials of wood origin.

PVA waterproof is added as a plasticizing agent to concrete solutions to increase the plasticity and water resistance of the working mass, the finished stone. Connection with cement mortar increases adhesion to the surface covered with a screed or tile.

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 for the manufacture of various wooden products.

"Titanium Universal" is a quick-drying adhesive suitable for working with wooden surfaces. It quickly gains strength, reliably connects surfaces without damage, and becomes transparent.

Adhesive mastic is suitable for finishing work, gluing wooden beams, boards, sockets.

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

Selection rules

Necessary:

• Take into account the scope and specifics of work. When processing a large amount of wood, it is better to give preference to powder semi-finished products because of their low price.
• Pay attention to the characteristics, select the solution according to physical properties.
• Find the right consistency glue.
• Carefully read the information on the label, get acquainted with product reviews.

Wood is the most common building material in Russia. Accordingly, the problem of its strong gluing is very relevant. The most common glue for wood is, of course, PVA, and it has been used for more than 50 years, and even now it is difficult to find a worthy alternative in construction.
The cheapest are the types of PVA glue for the office, and in construction they are only suitable for wallpapering. The second group is represented by PVA building adhesives, which are an additive in concrete and as a glue for decorative elements made of wood, paper and pile coatings. This is followed by a group of adhesives for household needs and it is suitable for simple carpentry work. This group is the most popular among consumers. The fourth group includes adhesives that are designed for carpentry work.
Most consumers prefer the old fashioned way to use variance. And this is not a mistake, although it brings with it a number of inconveniences. One of them is the issue of plasticization. The plasticized dispersion is afraid of the cold, and when it is plasticized by the consumer, as a rule, the quality is lower than the factory one. In the case of using ready-made frost-resistant PVA adhesives, this issue disappears.
It should be noted that the use of PVA dispersion for gluing does not give a true increase in the strength of wood gluing.
The fifth group is the types of PVA filled. These adhesives give good strength, but have special properties:
- the formation of white gluing seams, in place of the usual transparent ones;
- limited plasticity;
- dries in less time.
Such features should be taken into account while working with them.
Conventional PVA glue is made on the basis of an inexpensive homopolymer dispersion, which has limited water resistance. Moisture-resistant PVA wood glue is made on the basis of a copolymer dispersion, which is a little more expensive. More preferable for such purposes are versatate and acrylic PVA copolymers, which are practically not produced in Russia, and imported adhesives are not cheap. But here it is better not to save money, since the products for which these adhesives are designed clearly do not belong to cheap products, and the share of adhesives at cost is negligible.
PVA glue for wood is moisture resistant, in turn, it is not intended for gluing frames or sheathing of a wooden yacht, but the railing on the porch or an open terrace for PVA glue is quite suitable.
The seventh group are specialized adhesives. They are intended for the woodworking and furniture industry. You can hardly find them on store shelves. Such materials are intended for a narrow scope of special tasks that rarely occur in everyday life. Accordingly, the cost of such adhesives is quite high. If the wholesale price for general-purpose PVA glue ends at the bar of 1–1.5 dollars. US per kilogram, then in this class of adhesives, the countdown is just beginning from this mark.
From the point of view, in the class of general-purpose adhesives, a fairly high degree of bonding strength is achieved up to 35-40 kg per square centimeter, the strength of pine (for comparison) to tear along the fibers is 20-25 kg per square centimeter.
A further increase in strength here does not make sense at all, in other words, the gap will simply occur along the “body” of the wood itself and will not depend on the strength of the glue. Another thing is that excellent strength is not dependent on external influences. Such influences include the temperature parameter and the degree of humidity. If we are talking about furniture that is used at room temperatures, then this factor is not so critical, but it should be taken into account.

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 that the widest assortment is offered on the market today, it is difficult for a potential consumer to make the right choice the first time. 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 glue 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 in damp rooms and outdoors.

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 wood glue. It is versatile, heat resistant, low temperature resistant. 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. When choosing the right type of adhesive, you should consider water resistance, versatility, reliability and resistance to temperature extremes. If wood is to be spliced ​​together, Clayberite is the best choice. In other cases, you can use PVA, BF, Moment.

Carrying out repair work, repairing furniture or making something, we need to use certain adhesives. Today there are many brands of adhesives that are designed for wood products. Now on the shelves there are many well-known compositions, as well as innovative products created using modern technologies.

The use of wood glue serves various purposes and tasks: fixing or connecting different structures, creating safe, insulated joints that are protected from moisture penetration, etc. You can choose the right adhesive if you determine the purpose and purpose of its use.

Application of glue

Waterproof glue has enhanced hydrophobic qualities and better fixes objects. When lining rooms with condensation or water tanks, as well as rooms with high humidity, these qualities of glue will do a good job. Moisture-resistant wood glue does not react to low temperatures, it is good to use it when facing exterior and interior elements. The frost resistance and heat resistance of such adhesives will help to clad open structures that are periodically frozen and flooded. .

Waterproof adhesive has high adhesion adhesive composition, can be used for all kinds of surfaces. A waterproof adhesive is used for fixing natural stone slabs, ceramics, porcelain stoneware products. These types of glue have a very wide range of applications, they can glue wood, ceramics, leather, vinyl, glass, plastic, cardboard, and all this in various combinations.

Selecting the type of glue

Today there is a wide range of excellent adhesives with various properties, such as moisture and heat resistance, slow or fast curing, longer shelf life from the moment of preparation, etc. Many adhesives give such a strong connection that the adhesive layer is sometimes stronger than wood. Let's find out which types of glue are used most often:

• Animal glues are traditional carpenter's glues. They are made from animal skins and bones. Previously, such adhesives were the most important in the woodworking industry.

• Hot melt adhesives are cylindrical rods that are used in specialized glue guns. These types of glue are very convenient, they harden in a few seconds, they are indispensable when working with templates and models.
• PVA is a polyvinyl acetate emulsion, it hardens when dried or penetrates into the wood. This adhesive is non-toxic, with an infinite shelf life. PVA - moisture resistant glue, drying, it becomes transparent. Often used in the manufacture of furniture.
• Urea-formaldehyde adhesives are moisture resistant, able to fill cavities well, they harden through a chemical reaction. This glue is a powder, it must be mixed with water and applied to the bonding points. There are also two-component adhesives that have a liquid hardener. The hardener must be smeared with one of the surfaces to be bonded, and the other with glue mixed with water.
• Contact types of glue are thinly distributed over two surfaces. At first, it partially seizes two surfaces, and then quickly glues them together. This type of glue is good for gluing melamine coating on table tops, and other types of glue are used for gluing veneer. The glue smells pretty bad.
• Epoxy adhesives have two components in their composition - resin and hardener, they are mixed in a certain amount and glue is obtained. When cured, epoxy adhesives form durable, insoluble transparent seams. Basically, these types of adhesives are used if the product to be bonded will be in high humidity conditions.

Today, moisture-resistant wood glue has a lot of advantages, as well as a large assortment of its various types and a wide range of applications. Lots of options for choosing a superior quality product. Modern adhesives are resistant to changes in temperature and air humidity, have a shorter period of complete curing, much longer durability than before. And this is not all the advantages of moisture-resistant adhesives.

Carpenter's glue is often used. The tool provides a quality connection and has an affordable cost. It is used for reliable gluing of wood, wood, as well as chipboard and fiberboard. The main component of the solution is the protein component, the specific properties of the adhesive depend on the additives, which make it suitable for various cases. Before use, the adhesive mass must be properly prepared at home, its quality and properties depend on it.

Glue Features

The main advantage of the adhesive material is its good strength. Even if the tree begins to collapse, the adhesive layer remains intact. The disadvantages include an unpleasant smell, as well as inconvenience in storage. If you keep the product in liquid form, then it can become moldy. Use the adhesive mass in construction work only in a heated form. A water bath is ideal for this purpose. It is not recommended to heat the glue directly, as it may lose its unique features.

Giving preference to dry glue, you need to pay attention to its appearance. Most often it is sold in the form of yellow-brown granules. High grain transparency indicates excellent product quality. The consistency of the adhesive may vary. Some types of glue should be diluted with boiled water. It all depends on the type of material.

Cooking method

To work with wood, the adhesive composition is recommended to be preheated (up to 60-70 degrees). Water is added to the glue and heated in a water bath. The mixture is brought to a homogeneous mass similar in consistency to cream. During the cooking process, the composition must be constantly stirred so that the mixture does not have time to burn.

There should be no lumps or other defects; the adhesive should be uniform in density. After cooking, the mass is poured into a plate standing in a water bath. Gradually, the composition cools down, forming the correct consistency. On the plate, the sticky mass is cut with a knife into separate strips, which are later used in carpentry (preheating).

Which glue is better to choose?

Each type of wood glue has its own special qualities. When buying, it is important to take into account light fastness, adhesive strength, biological stability of the composition, etc. Having familiarized yourself with the characteristics of the various types of wood glue listed below, it will be easier to make the right choice.

In the assortment of each hardware store you can find wood glue of this type:

If there is a need to restore furniture, then it is better to take this particular adhesive. It is made on the basis of an air bladder and fish fins. Outwardly, fish glue looks like scales with a transparent and elastic structure. It does not need preheating. Fish wood glue is used at a temperature of 20 degrees.

It is recommended to use it for gluing materials with different rigidity. The disadvantages of fish glue include a high price. It should not be used in a humid environment: under such conditions, the unique properties of the composition are lost.

PVA glue is ideal for working with porous woods and materials containing essential oils. The seam will be as strong as possible if additional efforts are applied during gluing, pressing and fixing the parts with force. It is not necessary to preheat or prepare polyvinyl acetate glue, as it is already sold ready-made. The adhesive has a long shelf life.

The main advantages of PVA:

• seam stability;
• resistance to sunlight;
• elasticity.

Before use, such adhesive material should be prepared by heating to 50 degrees. It goes on sale in the form of plates or granules. You can determine the quality of the glue by color: the lighter the composition, the better. To prepare the adhesive, dry material must be poured with water in the proportions indicated on the package. Within a few hours, the granules should swell, and after that the mixture should be stirred and heated in a water bath. The whole process will take several hours.

It is necessary to use bone glue hot, while it must remain liquid: it is desirable that it flow from the brush in a continuous stream. In the case when the bone glue turned out to be too thick, it must be diluted with hot water.

Has high strength; made from leather. It contains gelatin and oligopeptides. It is the latter component that contributes to increased strength when connecting parts. In the assortment of a hardware store, you can find skin glue in the form of powder, flakes and tiles.

Before use, the adhesive composition is diluted with water, left for several hours (the mixture should have time to swell) and then melted in a water bath. Mezdrovy glue has a light shade, and also has a high viscosity. When working with this variety, it is important to take into account the latter fact, since this feature can lead to the destruction of the tree.

Before using the product, it must be prepared (according to the scheme above), then let it brew for 10 minutes, remove the foam, and only after that should you proceed to use. sold in powder form.

A mixture of this type is rather fragile, and its volume after application may shrink. This feature somewhat complicates the gluing process. Casein wood glue should be used carefully if the tree contains tannins. The use of glue in this case may lead to loss of color of the wood.

Advice
After preparing casein glue, it must be used immediately. Unlike other types of wood glue (which can stand ready for several days), casein glue will lose its properties after a few hours. If during the preparation of the product in a water bath it turned out to be too thick, then it is not recommended to dilute it with water.

Application rules

When working with the composition, it is important to adhere to the following recommendations:

1. It is better to apply the mixture with a bristle or bast brush.
2. One layer of glue is applied when it is necessary to glue the part along the grain of the tree. Two layers are distributed on the ends, a second layer should be applied only after the first has dried.
3. After a few minutes, when the wood glue dries, the parts must be carefully compressed and aligned. Remains of excess glue are removed, and the parts are fixed with a bandage or twine for several hours until completely dry.

Advice
By adding ammonia, borax or phenol to the adhesive, you can increase the resistance of the mixture to mold. It will not be difficult to get putty paste if you add ash or chalk to the glue.

By giving preference to proven wood glue, you are almost guaranteed to make the highest quality furniture or repair it yourself without almost guaranteed. Carpentry work will progress productively if you follow important rules in the preparation and use of the adhesive mass.