Wood glue: varieties of compositions and selection rules

Wood glue: varieties of compositions and selection rules

Wood refers to natural materials that a person constantly uses for construction, the manufacture of various structures and objects used in everyday life. To work effectively with wood, you need a reliable and durable fixing compound, which is a glue that is available on the market in a wide variety of types..

Specifications

New types of adhesives for working with wood are constantly appearing on the modern market, and products that have been used for a long time are being improved in order to occupy a leading position in the line of these products along with new products. When choosing an adhesive, one should focus on the characteristics of the product, in addition, the type of materials with which to work is considered an important factor. Based on these nuances, the compositions can differ significantly..

It is also necessary to take into account the conditions in which the product or structure will be used in the future, since there is no universal product that is ideal for all types of wood gluing without exception..

It is worth highlighting a number of characteristics of the glue:

  • Moisture resistance of products – this property of the material is indicated on the label with the letter “D”. There are several options for the water resistance of the composition – class D2, D3, D4. The higher this value, the better the adhesive performance..
  • The composition must be non-toxic.
  • The level of strength of the joint formed. In most cases, a high-strength material is required to work with wood..
  • Product density.

  • Adhesion to various substrates – wood can be reliably fixed not only with similar raw materials, but also with concrete, glass, rubber, fabric, mirror, tiles, there are compounds for gluing wood and metal on sale, as well as products used in shipbuilding, etc. d.
  • The period of complete solidification of the substance.
  • Heat resistance of products.
  • Resistance of the adhesive to the development of microorganisms.
  • In some cases, a very important point is the color of the substance – the composition can be transparent or repeat the color of the tree, in addition, there are white and black products.

Composition

Considering the composition of the products, it can be divided into two groups:

  • one-component gluing compounds;
  • two-component materials.

The first category includes glue, which is sold in liquid form, already completely ready to be applied to the working base. You can also find the composition in the form of foam glue. The second group of products includes formulations that require dilution and mixing of two ingredients to obtain a substance for gluing materials. As a rule, such a product is a polymer composition, which is marked accordingly – the first component is designated by the letter “A”, the second – “B”, the latter is a hardener.

The composition is prepared immediately before work, strictly following the specified breeding instructions. For mixing, a special tool is usually used, after the complete dissolution of the components of the two-component adhesive, an elastic and homogeneous contact product is formed. Products may vary in color.

Views

Based on the purpose and ingredients used to make wood glue, there is a wide range of products on sale. The most popular type of composition is PVA, it is familiar to everyone since childhood. This substance allows you to glue paper, wood and wood-containing materials. Its main requirement is the moisture absorption capacity of the raw material. The eco-friendly composition is a white liquid, thick in consistency, which, when solidified, becomes colorless. The main characteristics of the product include the fact that the glue dries quickly, is sold ready-to-use, the composition can be easily removed from the base if necessary, it can be diluted with water. On sale you can find various types of products that differ in the field of application..

Epoxy adhesive is a two-component product, solidification of the composition occurs without participation in the reaction of air. This product can be used not only for gluing wood, the material is often used to work with other types of raw materials. During the preparation of the composition, it is worth strictly observing the proportions, since errors in dosage will lead to the production of a foaming mass that is unsuitable for gluing. The solidification period of the substance varies depending on the brand of product..

Not so long ago, Glue BF belonged to the group of the strongest and most durable products for working with wooden bases. The scope of application of the composition includes gluing wood, iron, PVC, polyurethane foam and other raw materials. There are several types of this composition, but moisture-resistant BF-2 or BF-4 is best suited for fixing wood. The products are distinguished by a rather specific material processing technology, which boils down to applying a layer, drying and subsequent compression of the elements with each other – this technique is needed for the strength of the splicing line.

Compositions that are resistant to various temperatures are represented by synthetic substances and varieties of epoxy materials. Among the list of products belonging to this category, one can single out the composition, which is sold in the form of a rod. They work with him with a pistol. It is used to repair furniture, in the modeling of various structures..

Joiner’s adhesive composition is considered furniture, since it is in demand in this particular area of ​​production., in addition, the products are used for repairing musical instruments. The reason why such a product has not gained wide popularity is the complexity of the work, because it is sold in dry form, which requires a number of works to prepare it for use..

It includes several varieties – sturgeon, skin, bone glue. These are environmentally friendly products that are made from organic substances. Products are sold in granules, and glue is also produced in the form of grains. Fish glue is mainly used as a professional composition for repairing musical instruments. The latter refers to gelatinous products. The main feature of such a glue for wood is the ability to soak the compound in water, as a result, the elements will move away from each other..

The syndeticone compound is necessary for fixing the tree to the tree. This is a homemade product that contains sugar, hydrated lime and wood glue..

Polyurethane glue is a super strong material with high quality characteristics, refers to expensive products. Among the indisputable advantages, it is worth highlighting the moisture and frost-resistant nature of the product, due to which the composition is recommended for working with wood both indoors and outdoors. Moisture and frost-resistant composition has the effect of filling the plane, providing protection of materials and their joints. The expanding composition is allowed to work in the temperature range from -30 to +100 degrees. Can be used for hardwood.

Casein wood glue has a completely natural composition. Such products are sold in the form of granules or you can prepare them yourself at home. The composition is used for MDF, chipboard, fiberboard, parquet, printing and painting. Elite furniture is made using casein composition.

Among the disadvantages of the product, it should be noted the hygroscopicity of the material, as well as the possibility of mold formation on its surface, but with proper storage, unpleasant situations with the composition do not arise.

Paste adhesives are used as assembly products for sealing small voids that prevent moisture penetration. They are heat-resistant and cold-tolerant. A heat-resistant product for gluing wood is rarely used, but for work with uneven substrates, the product will be an indispensable assistant..

Manufacturers rating

For wood, ready-made adhesives on a synthetic basis are more in demand. Among the brands that have proven themselves on the market for such products on a positive side, it is worth highlighting several manufacturers..

Titebond – compositions that are produced by an American company. The specialization of the products is the manufacture of furniture from wood and wood-containing materials, work with floor coverings, including tiles, finishing of various structures with wooden elements. The formulations include artificial and natural ingredients, do not contain solvents and resins, which ensures a high level of adhesion of the bases to each other. In the review of the products of this manufacturer, the product “Titebond ii premium” should be highlighted, which is recommended for fixing paper products, wooden elements, in demand for the manufacture of doors and window blocks, chairs and other furniture. The products are allowed to be used for work outdoors and indoors. Using such adhesives, they decorate facades with wooden fittings..

“Moment” – the products of the German concern, are widely used in the industrial and domestic spheres, the composition is relatively cheap, therefore it is convenient for small and large repairs. Quite often, these products are used to repair kitchen utensils – waterproof glue glues mugs, cutting boards, etc..

“Titanium” – a multipurpose composition, high-quality glues wood, glass, plastic and paper. It is sold in different containers – from 60 g to 1 liter. Among the assortment, one can single out glue-mastic, which is used for repair and finishing work with wood..

Application

To ensure a high level of strength of the connecting seam, you should competently approach the preparation of the elements for fixation. The wood must be well sanded, sawdust removed, and dust or existing dirt must be removed. If you plan to work with wood and porcelain, or with glass, acrylic surface or plastic, the material must be degreased. Acetone works well for this..

According to the recommendations of most manufacturers, one and the other part must be treated with an adhesive. If the work is performed with BF glue, then gluing is performed in two approaches with an interval of 10-15 minutes.

Two-component polymer product offers multiple application options – in the first case, the compositions are mixed, forming a homogeneous composition, in the second version, each ingredient is applied to one of the materials, after which they are fixed with each other.

Varieties of wood glue are applied in two layers, allowing the previous one to harden a little. For flat elements, you can apply one layer, evenly spreading it along the location of the fibers on the material. For a more effective connection, the elements must be placed under a press or pressed against each other in some other way..

Quick-drying compounds do not need additional pressure. However, attention should be paid to the leakage of the substance at the junction – all excess must be promptly removed from the bases.

An important nuance when working with glue is safety measures, since even organic or one-component products can cause an allergic reaction in a person. Therefore, care must be taken to protect the skin and eyes..

Which one is better to choose?

A number of points can be distinguished at which it is worth focusing your attention when buying products:

  • For gluing wooden components forever, it would be more correct to give preference to a composition based on a synthetic base..
  • Gluing of structural elements, in which it may be necessary to dismantle the fixed parts, should be performed with adhesives on an organic basis.
  • For light types of wood, “Joiner” is most suitable. Based on the feedback from experts, casein formulations darken over time, which will make the connecting seam expressive against the general background. This option is not suitable for carpentry work in most cases..
  • When buying PVA, it is worth checking its homogeneity. The division of the composition into several fractions will indicate that the products were stored or transported in violation of the conditions, as a result of which the glue was at sub-zero temperatures and was frozen. It is no longer possible to use such a composition in work..

It will be much easier to decide on the type of products required for gluing a tree, knowing what materials need to be connected. Any of the adhesives described above will work only with wood. In order to glue small elements that are present when creating models of any designs, for decoupage or crafts, it would be more correct to purchase a cyanoacrylate quick-drying composition. Strong adhesion will provide PVA when processing large areas that relate to fixing the floor covering to plywood or wood floor, for covering pieces of furniture with leather or fixing leatherette on wood.

For gluing elements of street construction, where operating conditions imply temperature fluctuations, you will need a frost-resistant BF-4. These can be stairs, tiles laid on a wooden surface, aluminum bases, etc..

How to do it yourself?

There are traditional time-tested recipes for making adhesives at home..

Such substances include the following options for wood glue, which can be prepared from the products available in every home:

  • Casein – the product is made on the basis of fat-free curd mass. It is soaked in a soda solution, and then washed with water. Further, according to the instructions, the product must be dried so that it becomes like a dry powder in consistency, which is mixed with water for subsequent use. You do not need to cook such glue..
  • Kleister – is a rather demanded adhesive composition that you can cook yourself. The composition includes a solution of flour (at the rate of 6 tablespoons per 1 liter of water), which must be diluted in boiling water until a homogeneous mixture is obtained.

In the next video, you will find an interesting introduction to wood glue..

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