The popularity of linoleum is due to its excellent appearance, as well as durability and practicality. However, these advantages can be reduced to zero if, during the laying of this building material, the joints of his canvases will be with clearly visible seams, therefore their proper sealing is so important, ensuring both the integrity and strength of the floor covering.
For a quality connection of linoleum pieces, two types of welding are used, one of which is called hot and the other cold. The choice of a specific type of welding depends on the actual situation and on the type of linoleum.
Taking into account the place of use (offices or residential premises) linoleum is divided into commercial and household.
In rooms that are visited by a large number of people, linoleum is subjected to significant loads, therefore, in public places for this type of coating is chosen, as a rule, very durable material. At the same time, such a linoleum with enhanced resistance to abrasion is welded using a hot method, and the work is carried out only by professionals using quite expensive equipment.
The cold method is usually used when there is a coating of linoleum of small thickness and with not very high strength characteristics. Such material is most often used in apartments.
It can be performed only by specialists who have in their arsenal a special cord and a special welding machine, with the help of which the hot welding of linoleum seams at the proper quality level is ensured. The essence of the process is as follows: at the junction of the sheets of linoleum, a groove is cut through which corresponds in shape to the profile of the above-mentioned cord (also called a filler rod), which is used as a connecting element.
For the manufacture of cord / rod, which can have both round and triangular cross-section, plasticized PVC is used, so that it easily softens at a temperature of 350 ± 50 ° C. The rod is inserted into the apparatus for welding linoleum and with the help of this tool it is introduced into a previously prepared groove and lead, pressing, along the butt line.
Today, glue called “cold welding for linoleum” is increasingly used at the household level. This tool with excellent bonding properties, sometimes referred to as liquid welding. It is more often than other adhesives used by professionals during modern construction work.
This glue can be used not only for welding linoleum, originally laid, but also for the joints of linoleum during its repair. The main advantage of this method of joining coatings is the great strength of setting one piece of flooring material with another. The technology of application is simple and does not differ significantly from other methods of gluing, but the result is always at a very high level. Often this glue is used for fixing baseboards, as well as various decorative PVC products.
Laying linoleum lead, sequentially connecting the adhesive for welding each subsequent sheet of material with the previous one, placed exactly in the intended place. Due to the fact that the welding of linoleum cloths is made with colorless glue, the gluing places are hardly noticeable.
There are several types of this glue, differing in properties and methods of application.
This adhesive has a liquid consistency due to the large amount of solvent contained in it and facilitating the processing of the bonding point. It cannot be used when joining sheets of bonded material, the width of the gap between which exceeds two millimeters.
The main advantage of using glue type "A" is the accuracy of the seam and the invisibility of the welding joint for the eyes while at the same time ensuring the high strength of the obtained liquid welding, but this glue is not recommended for repairing linoleum coating. Its use is preferable in cases where the code needs to stick to each other new strips of linoleum.
There are other brands of adhesives that can be used for cold welding of linoleum sheets. You can call, for example, two of them, and their technical characteristics are given below.
- Sintex H44. Drying time "on sticking" - 20 minutes, hardening time - 2 hours, full polymerization time - 24 hours, the maximum value of the joint width - 4 mm.
- EP-380. The strength of the seam is 3500 PSI, the temperature of use is no more than 93 ° C, the duration of hardening is less than 15 minutes, the setting speed is about 4 minutes.
A characteristic feature of these grades is that they have a low melting point, lower than that of cold welding used to join metals, but in the case of working with linoleum, this is not essential.
Glue for cold welding today is offered in a wide range. The main thing to consider when choosing a glue for welding linoleum sheets is the purpose of bonding.
In those cases when it is necessary to repair the finished coating, it is better to choose adhesives with a thicker consistency, in which the concentration of PVC is greater and the solvent is less. This will give high strength to the seam when gluing damaged fragments and sealing cracks. The same type of glue will also be more suitable for joining new pieces of flooring, but cut unevenly, or if the joint has a “walking” gap.
Glue consumption in the first and second versions will be almost the same.
DIY welding linoleum: a sequence of actions
In order for high quality linoleum welding, it is necessary to follow a certain technology, which looks something like this:
- First, two strips of linoleum are laid out so that they overlap by 3-5 centimeters.
- Further, these two overlapping strips are cut at the same time along the metal strip, thereby ensuring an ideal joint between them.
- After cutting the linoleum trim it removed.
- A double-sided tape is glued to the floor under the location of the future joint seam, which will prevent the glue from spreading over the floor surface and fix the seam area.
- The weld area is wiped with a rag: for high-quality welding, it must be clean and dry.
- Special cold-welded paper tape is glued to the middle of the tightly cut seam. This is done in order to avoid damage to the top layer of linoleum.
- A knife with a round blade scotch is cut in the area of the seam along its entire length. You can use other types of knives, but the main thing is to ensure that during cutting not to damage the edges of linoleum.
- After cutting the paper strip, it is tightly rolled with a roller to prevent cold welding from getting under the surface of the paper.
- A special nozzle in the form of a needle is installed on the tube with glue, through which the liquid adhesive contents will flow.
- Next, the needle is inserted into the gap between the sheets of linoleum, and by lightly pressing the glue from the tube is squeezed into the joint gap.
- After filling the gap, it is necessary to wait some time, which is usually indicated in the instructions for a specific type of cold welding, and remove the paper tape, removing it at an acute angle.
Knowing the technology of using cold welding, you can independently carry out not only the repair of linoleum, but also its laying. Read carefully all the instructions and choose the right type of glue when buying. I wish you success!