Linoleum is a versatile floor covering that can be used in a variety of environments. These products are produced in the form of rolls of a certain width. The dimensions of the products are limited, which does not allow choosing a solid sheet for a specific room.
They solve a similar problem by using several elements that fit together. Cold welding for linoleum is one of the most popular ways to join sheets. This allows you to create strong and smooth joints that will withstand significant loads for a long time.
What it is?
Linoleum is an artificial material that is produced on the basis of various chemical compounds. The joining of sheets forms a small gap, which is not aesthetic and beautiful. To obtain a solid seam, the cold welding method is used.
This approach involves using special glue that connects the sheets of linoleum into a single whole. When exposed to a substance, a chemical reaction occurs that makes the material liquid. In this short time, the joints have time to grab and form a strong connection. Cold welding is a relatively simple connection method that can be performed even without experience and a special soldering tool (soldering iron, etc.).
The properties of the glue are such that allow you to work with joints of different widths. The resulting joint also has plasticity and practically does not differ in characteristics from the properties of linoleum.
Welding linoleum with cold soldering allows you to get an aesthetic surface, which is very important for residential interiors.
Features of the
Cold welding of seams is a great option for people who are making repairs in the house and are planning to get a beautiful surface with minimal visibility of the seams. Several positive aspects of this method should be highlighted:
- Bonding by this method allows you to get a high-quality result in a relatively short time.
- You do not need to use or purchase ancillary equipment to get a connection. Manufacturers often sell all the tools they need, complete with glue. In addition, you only have to buy double-sided masking tape, which covers all the joints.
- Low cost of work. It is the optimal alternative for both repairing old flooring and laying new linoleum sheets.
- Invisible joint. The junction is visually very similar to the usual linoleum surface. Although, if you look closely, you can define it.
But cold welding is not the best solution, since this approach has several significant disadvantages:
- The glue consists of toxic components that release harmful substances into the air for the human body. Therefore, all work must be performed only with the use of special protective equipment (masks, respirators, etc.). When buying cold welding, it is important to check its quality, as well as compliance with all SNIP standards.
- Limited use. Only single-layer linoleum can be connected with this glue. If applied to multi-layer products, it will enlarge the seam, which will be very visible to the naked eye. Some experts also do not recommend using welding if you have insulation under the linoleum.
The choice depends on the type of linoleum
The modern market presents many types of linoleum, which are obtained from several components. However, not all of them are suitable for cold welding. The best option for such a process would be a substance based on polyvinyl chloride. Today, many types of linoleum are composed of this substance. But still, there are products from other components. Therefore, before buying it, it is important to clarify what it consists of.
The best option for a household linoleum connection is type C gluewhich can be used to weld relatively large gaps. Commercial laminated linoleum is also cold weldable.
But if its structure consists of several layers (not necessarily of polyvinyl chloride), then the quality of the seam will be much lower. This is important to consider when choosing an adhesive.
Types of welding
The welding glue can work with several types of linoleum. But there are several types of such solutions on the market, which differ in composition and method of application. Depending on these parameters, cold welding is divided into the following types:
Type A. The substance has a liquid consistency, since the composition contains a large percentage of the solvent. The glue quickly dissolves the edges of linoleum, and also binds them qualitatively. It should be noted that this material is not recommended for use if there are more than 2 mm gaps between the joining sheets. In another case, the solution simply does not form a strong and plastic connection, it will quickly collapse. Please note that this type of glue creates almost invisible seams that are also very neat. At the same time, the joints remain strong and durable, and also withstand significant loads
The best option for using this product is new linoleum. This product has almost perfectly flat ends that can be very tightly joined.
- Type C. This type of glue is thicker with a minimum amount of solvent. This product contains a special mastic based on waterproof binders, which subsequently forms an elastic bond. This cold weld is suitable for joints with gaps of up to 4 mm. Such products are very often used not only for joining, but also for repairing old coatings with minimal damage.
- Type T. This type of glue is very rare in everyday life. This is due to the fact that it is intended for joining multicomponent linoleums, which include polyester and PVC. It is very often used for finishing seams on semi-commercial materials.
Although adhesive solutions of this type are produced by many manufacturers, their composition remains unchanged:
- Solvent. Tetrahydrofuran is used as this product, which assumes the presence of chlorine. It is this substance that acts on polyvinyl chloride and melts it. At the same time, the mixture practically does not react with other types of linoleum. Some manufacturers are replacing this substance with special types of polyurethane.
- Filler. In its capacity, the same PVC is used, which is in a liquid state.
It should be noted that the percentage of these products may vary slightly. This allows you to change the basic characteristics of cold welding.
Type A adhesive has more solvent, while this component is slightly less in type C solution, which has a high percentage of PVC.
Cold welding is a grout that is sold in small tubes. Similar products are applied to the joints between adjacent linoleum elements. The consumption of this substance depends on several main factors:
Performer's qualifications. If a person often performs cold welding of linoleum, he uses the minimum amount of solution that is needed to form a seam.This eliminates the appearance of a large amount of waste. When welding is performed for the first time, then it is not always possible to immediately fill your hand in order to use only the required amount of solution
- Linoleum thickness… The higher this indicator, the higher the fluid consumption. But it should be understood that PVC products of significant thickness are quite rare in everyday life. The main layer of polyvinyl chloride is on top, and the substrate itself does not react in any way to the action of the solution.
- A kind of solution. Type A glue, which is very often used in everyday life, has a consumption of about 50-60 ml per 25 running meters of a seam. In turn, a mixture of type C for the same number of slots will already need about 70-90 ml.
Please note that some manufacturers indicate consumption not in milliliters, but in grams. Therefore, in order to get a high-quality result, before starting work, you should calculate the required volume of solution that will be needed to solve a specific problem.
The market for cold welding for linoleum is very diverse, as many manufacturers produce it. This is due to the fact that this glue is universal and suitable for almost all PVC products. Among the whole variety of models, several main brands of these products should be distinguished:
- WernerMuller. The German brand under which all types of cold welding are produced. The quality of the material meets all international standards. Experts note that the substance forms a high-quality and durable seam. The average consumption of glue is about 44 g per 20-25 running meters.
- Tarkett. Another German brand, which, according to reviews, even slightly surpasses the previously reviewed products. The adhesive is versatile and creates an almost invisible seam.
- "Homakol". Domestic glue, which is used mainly for gluing PVC plates and commercial linoleum. Material consumption is approximately equal to the previously indicated indicators.
- Rico. The glue of this brand does not contain tetrahydrofuran, which is toxic to humans. Instead, special compounds of polyurethane foam or artificial rubber are used here. The adhesion with the help of these substances does not differ much from the options where the classic glue is used. At the same time, the cost of production is somewhat lower and there is no strong toxic evaporation.
- "Second" and Sintex. Relatively cheap solutions of Russian and Spanish production. The consumption of this material already reaches 45 g per 50 running meters of the seam.
How to use it correctly?
It is quite simple to glue the joints between linoleum sheets using cold welding. To do this, you first need to stock up on some tool:
- Long ruler. It is advisable to use metal models in this case, since they are smoother and do not deform.
- Masking tape. If it is not there, then you can use a two-way analogue.
- Cutting knife. It must be sharp, since the quality of the seam and joining of sheets depends on this.
- Substrate. Often, thick cardboard is used for this, which is placed under the seam so as not to cut along the floor. A sheet of old plywood, old linoleum or chipboard is also suitable.
- Remedies. This includes gloves and a mask to prevent inhalation of corrosive vapors.
To weld linoleum with high quality, you should get an even joint of the elements. This will allow the adhesive to evenly fill the gap and form a strong bond. This process is quite simple and consists of several operations:
- Initially, two sheets must be superimposed on each other with an overlap of about 5 cm. This factor should be taken into account when buying material. Under them, you should first put a sheet of chipboard or old linoleum along the entire length of the joint.
- After that, a mark is applied to the top sheet, which will indicate the place of the joint. Note that it is located approximately in the center of the overlap.
- At this stage, you need to cut off the extra pieces.To do this, use a ruler, which is placed along the future seam. It is important that two sheets of linoleum lie under it. After that, using a sharp knife, cut along the ruler. You need to cut two sheets at the same time, which will allow you to form an even and minimal joint.
Bonding linoleum consists of several sequential steps:
- First of all, you need to read the instructions for use. Depending on the type of glue, there may be some nuances that should be taken into account. Manufacturers also indicate under what temperature conditions it is possible to glue the material qualitatively.
- After that, the sheets are joined together by those sides that were previously fitted. It is important to make sure that the material does not move when performing such operations, and also there are no air bubbles under it. They can subsequently "migrate" under the seam, which will subsequently collapse.
- To avoid getting glue on the linoleum surface, masking tape should be glued along the entire length of the joint. After that, a channel is cut with a knife, which corresponds to the direction of the gap between the sheets of linoleum. This must be done carefully so as not to damage the material from the side.
- For welding, a special nozzle in the form of a small needle is put on a tube with glue. After that, they begin to feed the solution into the gap between the sheets. Initially, you need to fill the joint until a mixture with a diameter of about 3-4 mm appears on the surface of the tape. After that, you can consistently move along the entire length of the seam, feeding the glue inward in a similar way.
- When the joints are full, leave them for about 15 minutes. After this time, you can remove the tape. Full bonding will occur in about 3 hours.
If the mixture gets on a clean linoleum surface, do not try to wipe it off right away. Let it harden and then just cut it off with a clerical knife. Cold welding technology is a simple operation that only requires care and safety.
You will learn more about how to use cold welding for linoleum in the following video.