Plywood is a building material, the active use of which requires the production of furniture, packaging and even the automotive industry. The manufacture of this multilayer material is wood veneer of coniferous trees. The result is a sturdy construction that can be secured with screws, nails and bolts, but glue is the most convenient option.
Ways of laying plywood
How to glue plywood to plywood? The most environmentally friendly is water glue. It has no smell at all, it can be diluted with water and used instead of a primer. This installation requires additional fastening, and the main drawback is long drying.
The adhesive, which is based on a solvent, dries a little less - 3-5 days. In this case, you must first impregnate the concrete screed with a special primer. The disadvantage is a pungent odor.
How to glue plywood to plywood and save time? This desire can be maximally satisfied through the use of two-component glue. It dries about 24 hours and does not need a dowel-nails.
How to choose glue for plywood
The solution to the question of how best to glue the plywood to the plywood depends on the type of connection and further operating conditions. The process can be represented by self-assembly of plywood on the screed or carry an additional function, for example, to strengthen the structure.
If you plan to use uncoated plywood, you can purchase any glue. The main requirement is a dry and clean surface. To apply the composition to both surfaces to be bonded, it is better to use a roller or brush. After that, you can strengthen the connection of plywood with nails, screws or clamps. In conclusion, you need to remove the excess mixture.
How to glue plywood to plywood if whole sheets are used? You just need to cover the surface with a mixture, and then press them with temporary dowel nails.
It is not recommended to glue the laminated surface covered with a film, therefore, before applying the epoxy compound, the sheets must be cleaned with sandpaper.
How to glue plywood to plywood so as not to disturb the texture of the material and not cause a color change, but at the same time get a high-strength design? PVA glue is ideal for internal work, and phenol or epoxy glue is ideal for outdoor work .
The level of reliability of the joint is affected not only by the applied mixture, but also by strict adherence to the recommendations, since if the latter is violated, the properties of the adhesive may not be fully revealed.
Glue composition
The basis of almost any glue for gluing plywood is the following components:
- main adhesive ingredient;
- solvent;
- filler, which is usually used wood dust or flour;
- additives on which the pour point and maximum adhesion directly depend;
- plasticizer;
- antiseptic.
The hardener is usually any acid or ammonium chloride, and resistance to wetting ensures the presence of tannins (formalin, copper salts, etc.).
Glue requirements
Adhesive for plywood should have the following positive qualities:
- reliable fastening of materials;
- ease of use in everyday life;
- good moisture resistance;
- not susceptible to the damaging effects of bacteria and fungi.
It is equally important that the adhesive does not destroy the wood veneer and does not change its color.
Which glue is better: "KS" or "Tarbikol"?
When deciding how to glue plywood to plywood, people most often opt for KS or Tabricole.
A little more about their properties and features:
- Glue "KS" - a universal composition for which a viscous consistency is characteristic. The composition includes sodium liquid glass, as well as several mineral fillers and additives. It is very convenient to use, in addition, it is not afraid of humidity, high temperature and cold. The question is how to stick plywood to plywood on the floor? Glue "KS" will easily solve all the difficulties associated with a parquet board, fiberboard and chipboard products, ceramic tiles and glass.
- "Tarbikol" is a one-component polyurethane mixture with which you can lay any parquet. Its main positive qualities include: good sound insulation, lack of water and solvents, resistance to ultraviolet rays and high humidity. In addition, Tarbikol is two-component and is designed to work with the non-absorbent base of varnished parquet. It dries very quickly, so it is indispensable in the conditions of limited terms of repair.
The influence of the plywood brand on the choice of adhesive
The brand of suitable glue for plywood directly depends on the level of required strength and on how high the humidity in the room in which it is planned to operate the structure.
How to glue plywood to plywood if the finished product is in a well-ventilated area? PVA, protein or synthetic, is good.
If you plan to produce country furniture, which will be both indoors and outdoors, it is better to use one of the synthetic compounds.
After a choice has been made in favor of a moisture-resistant material for indoor use, you need to determine how to glue the plywood to the plywood. Reviews indicate that the connection is best carried out with compounds based on urea resin. The use of uncoated sheets makes it possible to glue plywood with any type of glue.
How much glue does it take to lay plywood on a concrete surface?
The flow rate depends on the number of bumps, the presence or absence of porosity and the quality of the screed. It should be based on the recommended consumption of 1.2-1.5 kg / m 2 , but do not forget that plywood should be laid on the base without voids. Only a uniform pressing of plywood to the base can ensure optimal distribution of glue over the entire surface.
Tools and materials necessary for work
Before you start working with plywood, you should stock up on the following tools:
- foam roller;
- clamps;
- with a hammer.
You also need to prepare the necessary materials:
- blanks;
- sanding paper;
- nails.
Plywood Bonding Sequence
Before starting work, you should figure out how to glue plywood to plywood. The instruction below discloses as much as possible all the subtleties of this process:
- First, plywood sheets need to be cleaned of dust and various kinds of contaminants. To remove the laminated layer, sanding paper will be needed .
- Then the plywood should be thoroughly dried.
- The distribution of glue to obtain an even layer is recommended to be carried out using a roller.
- Now you need to press the plywood parts to each other with clamps. Removing protruding excess is recommended with a knife and rags.
- If there are large parts, then they will need to be connected with nails.
- Finally, when the adhesive mass is completely dry, the product must be released from the clamps.
Plywood scrap coffee table
Much has been said about how to glue plywood to plywood, but how can we make something useful from this material?
After various repairs, many scraps of plywood remain, which are simply sent to the bin.
But it is these pieces that are ideal, for example, to create an unusual and beautiful coffee table.
List of materials and tools necessary for work:
- a whole piece of thick cardboard of small size for the template;
- many plywood pieces of the same thickness from which the main structure will be composed;
- moisture resistant glue for wooden surfaces;
- jigsaw;
- pencil;
- vise;
- a circular saw;
- Sander;
Bonding Plywood: A Practical Example
How to quickly make a plywood table? First you need to make a paper template for cutting the legs of the product. The coffee table will look good on openwork or curved legs.
You need to take a large sheet of paper and draw legs on it in a 1: 1 scale. When transferring the picture to cardboard, it should be remembered that the finished structure should be located on symmetrical legs.
After finishing work with the template, you can proceed to gluing the plywood pieces. The manufacture of the structure must be carried out so that the form resembles the future legs of the table. The bonding of every 2 parts must be accompanied by the removal of excess mortar and the tight compression of the plywood pieces. At the end of the work, the legs should be placed on a flat surface, attach a template on top of them and circle the outline with a pencil. To trim the excess design you will need a jigsaw. On top of the product, place the countertop and connect the parts together.