Description and technical characteristics of KN-3 glue, rules of application
People who need to make repairs often use KN-3 glue. Before using such a unique building material, you should familiarize yourself with its characteristics, areas of use and recommendations for applying to surfaces.
Description and characteristics of adhesive coumarone-rubber sealant KN-3
Before buying the composition and using it, you need to understand its features and description. Such an adhesive composition is a black mixture, which has a thick pasty consistency. The product does not need to be further diluted with water or heated. Therefore, you should use it immediately after purchase.
In the manufacture of the KN-3 adhesive mixture, high-quality rubber is used, which is mixed with modifiers and polymeric microelements. The adhesive belongs to the group of one-component products and therefore hardens quickly after being applied to the surface.
The dried putty turns into an elastic coating that reliably adheres to the treated surfaces. A feature of dried KN-3 is that it is resistant to mechanical damage and even strong shocks. Also, the tool handles both positive and negative temperature readings.
The glue can be used for outdoor work, as it is resistant to extreme temperatures, high humidity and solar radiation. The peculiarities of the composition allow it to be used for working with concrete, brick, plaster, plastic and wooden coatings.
Features
Experts recommend that you familiarize yourself with its main technical characteristics in more detail before using rubber sealant.
The characteristics that must be considered before using such an adhesive are:
- Curing time. Anyone using KH-3 in the future should know the sticking time of the mixture at room temperature. At temperatures above twenty degrees, the adhesive begins to set within twenty-four hours. However, full hardening occurs much later - three days after application.
- Consumption of working solution. Adhesive compositions may differ from each other in the amount of agent used to process one square meter. To process an area with a volume of one square meter, you will need about 750-800 grams of rubber glue. However, if the surface is rough, the flow may increase slightly.
- The amount of volatile components in the composition. Some adhesives contain volatile substances. KN-3 adhesive contains about fifty-five percent of these microelements.
Appointment
Anyone who is going to use this putty should understand its purpose. Experts recommend using KN-3 for bonding the following materials:
- Tile. When remodeling a kitchen or bathroom, walls and flooring are often covered with ceramic tiles.There are various ways to fix this material, but it is better to use KN-3. This tool attaches tiles to surfaces better than others.
- Linoleum. It is another common material that is often used for flooring. To securely fix the linoleum to the floor, its edges are treated with a small amount of rubber glue.
- Polystyrene. Sometimes people decide to insulate the house and glue on its walls with special polystyrene foam sheets. Experts advise fixing them with screws. However, for additional fixation, the edges of the sheets are treated with KN-3 glue.
- Parquet board. This material is often used to improve and level the ground surface. Parquet strips are often laid without the use of additional fastening means. However, it is better to treat the seams with an adhesive solution so that they are more firmly fixed to each other.
Rules of application and precautions
To properly use the KN-3 rubber adhesive mixture, you need to familiarize yourself with the basic rules of its use. There are several guidelines to follow when using such a tool. These include in particular the following:
- Preliminary preparation of coatings. The surface to be treated with a glue solution must first be cleaned of debris and dust particles. It is also wiped with alcohol for degreasing. This is done so that the adhesive layer is more firmly attached to the coating.
- Leveling of surfaces. It is recommended to pre-align the coatings to be treated with glue. For this, a special primer is used, which will help eliminate roughness and irregularities.
- Maintaining an optimal temperature. It is necessary to apply the agent to the surface at suitable temperature indicators so that the glue hardens better.Optimum temperature values are considered to be 15-25 degrees above zero.
- Applying the adhesive in a thin layer. Some people think the glue needs to be applied in a thicker layer, but that's not the case. Its thickness should not exceed one millimeter.
This rubber adhesive is classified in a third class of danger, and therefore, before using it, you must understand the precautions.
Experts advise against using it near open flames. Therefore, it is forbidden to light matches and even smoke near the glue.
In the room where the work is carried out, fumes gradually accumulate, which must be eliminated. To do this, the windows are regularly opened for 5-10 minutes so that fresh air can enter. When carrying out work, it is recommended to use portable lamps connected to the mains in another room. This reduces the likelihood of fires. For added safety, it is best to keep your fire extinguishing equipment with you.
Storage and transport conditions
People who have purchased adhesive mortar should know how to store it properly. First you need to determine in which containers it is better to store the adhesive composition. Experts advise leaving it in metal drums or jars. At the same time, they must be tightly closed so that the liquid does not spill out.
The shelf life of a rubber adhesive solution is influenced by the temperature of the room in which it is located.
It is recommended to store the adhesive in rooms that are reliably protected from sunlight.At the same time, the temperature inside should not rise above thirty degrees Celsius and fall below five degrees. These temperature values are considered optimal, since with them the composition will not deteriorate within six months.
Any type of transport is used to transport glue over long distances. However, people who are going to transport the KH-3 should do so very carefully and follow all recommendations for transporting flammable substances.
Advantages and disadvantages
KN-3, like other adhesives, has a number of advantages and disadvantages that should be known before using the adhesive. The main benefits of the rubber compound include:
- Raincoat. The main advantage of the rubber composition is that it is completely waterproof. Thanks to this, the product does not lose its properties even in direct contact with water. This allows it to be used outdoors.
- Rapid solidification. KN-3 is known for its high drying speed. In 2-3 days, the applied adhesive layer hardens completely.
- Versatility. KN-3 is considered a versatile tool, as it can be used to bond most materials to various surfaces.
- Resistant to temperature changes. Such a rubber mixture is resistant to sudden temperature changes and retains its properties even at low and high temperatures.
The tool has much less disadvantages than advantages. The main disadvantage is the high cost. Also, the disadvantages include the fact that the composition does not adhere well to rough surfaces.
Additional tips and tricks
Several additional recommendations should be followed when using an adhesive:
- it is necessary to apply the liquid in protective gloves so that it does not touch the skin;
- do not work with glue in closed and unventilated rooms;
- KN-3 should be applied to pre-leveled surfaces, since the composition is poorly fixed on rough coatings.
Conclusion
People involved in repair work often use KN-3 glue. Before using it, you should familiarize yourself with its features and tips for use.