Technical characteristics and instructions for use of KN-2 glue
KN-2 is a rubber glue. Viscous putty is made from synthetic rubber. The product contains solvent, filler and certain types of resins. KN-2 is used for construction, repair and finishing works. Mastic can be used for bonding flooring, decoration, walls and roofs, as well as for waterproofing. Once solidified, the mass forms a thin layer of rubber.
What is KN-2 Adhesive Rubber Sealant?
It is an adhesive that is used in daily life and industrial construction. KN-2 putty is used for gluing various materials and objects. Sold in hermetically sealed metal containers. Inside the tin is a viscous yellowish-brown or black mass. The glue is made of synthetic rubber with additives of plasticizers, modifiers, polymers.
The putty contains a solvent. The composition of KN-2 determines the properties of the product. Additives prevent the development of mold, have a bactericidal and antiseptic effect. Rubber gives the sealant high adhesion to various surfaces. A certain amount of plasticizers and modifiers ensure good plasticity. The solvent gives the mass the desired viscosity.
KN-2 product can be used for gluing various types of linoleum, parquet, glass, drywall, rubber, insulation. In some cases, glue is used for waterproofing. The KN-2 product is also used for laying bituminous tiles.
This impermeable and elastic substance, when applied to a surface, creates a sealing layer that resists too aggressive environments.
The viscous mass is able to fill all the crevices. The rubber composition allows the use of the KN-2 product not only for gluing, but also as a sealing material. The substance has high insulating properties, it is resistant to heat and shrinkage deformation. The adhesive provides reliable adhesion to any building material. The KN-2 product can be used in any climatic zone at temperatures from -40 to +100 degrees Celsius. The adhesive has excellent frost and heat resistance characteristics.
The glue is convenient and easy to apply to any surface. KN-2 is a cold product. Just stir it before use. Do not heat the glue. It is advisable to apply the KN-2 brand product in two layers using a brush or spatula. The second layer of adhesive is applied only after the complete drying of the one already applied.
The mass finally hardens after 24 hours. On a horizontal surface, the substance is applied by pouring, followed by careful leveling. The recommended application layer is 2 millimeters. The consumption of substances with such a layer is 1.5-2 kilograms per square meter of surface. After applying the glue to the surface, the solvent contained in the composition quickly evaporates.Complete drying of the substance occurs in 1-3 days. True, KN-2 acquires its final properties only after 10 days.
Too thick a mass can be diluted with a solvent (white spirit, gasoline, kerosene). After drying, the glue turns into a dense and elastic rubber layer. The hardened mass is not exposed to moisture, high or low temperatures.
Technical specifications
Properties of KN-2 glue:
- black color;
- conditional viscosity at a temperature of 20 degrees Celsius - 100 C;
- mass fraction of non-volatile substances - 30-40%;
- the strength of the connection with the concrete base - 0.2 MPa;
- elongation at break - 150%;
- water absorption in 24 hours - 1.5%.
Scope
KN-2 product is mainly used for gluing various types of linoleum, carpet, decoration, thermal insulation materials. The putty adheres perfectly to any surface, provides reliable adhesion to bonding materials.
Waterproofing
Mastic has waterproofing properties. The elastic mass adheres to any surface and forms a thin layer of rubber. The adhesive is absorbed deep into the porous substrate. The putty fills the cracks well. As it dries, the mass acquires waterproof properties. The waterproofing properties of KN-2 are important when laying the floor, filling seams and joints. Indeed, when moisture penetrates the structure of the floor, the entire coating will become unusable, it will have to be removed.
roof
The KN-2 brand product can be used for laying bituminous tiles. Glue is used for gluing rolled bituminous materials and roofing construction works. KN-2 glue has waterproofing, high frost resistance, which is very important when installing a roof covering.
How to use correctly
The KN-2 product is completely ready for use. Before use, it is enough to mix the mass well. It is forbidden to heat the factory putty. If the KN-2 glue is too thick, it can be diluted with a solvent to the required consistency. It can be gasoline, white spirit, kerosene. The solvent is added at no more than 20 percent by weight. Mix the putty well.
The liquid substance is applied to a completely dry surface, free of dust and dirt. Before using the adhesive, the base is cleaned of dirt, dust, old paint. The surface must be degreased, leveled, primed. It is advisable to apply KN-2 in two layers using a brush or spatula. The mass can be poured onto a horizontal surface and then leveled to a layer thickness of 2 millimeters. The duration of complete drying of the substance is 24-72 hours.
Precautionary measures
KN-2 putty belongs to combustible (flammable) materials. Do not smoke or use tools that produce sparks when handling this material. It is forbidden to make fire during the repair. When the adhesive catches fire, a fire extinguisher, sand and an asbestos rag are used to extinguish the flame. It is forbidden to use water to extinguish a fire.
You need to work with putty in a protective suit, respirator or mask, tarpaulin gloves. KH-2 is considered a toxic product. If the substance comes into contact with the skin, it should be carefully wiped off with a cotton swab soaked in solvent, then rinse the area with warm water and soap. If glue gets into your eyes, wash your face with warm water and seek medical attention.
Repairs should be carried out in a well-ventilated area.When working with an adhesive product, it is forbidden to inhale the vapors of this substance. The solvent, which is part of KH-2, evaporates completely after 3 hours. After the adhesive is completely dry, the room where the repair was made should be well ventilated. Staying further in the room where the KN-2 glue was used is absolutely safe.
Storage and transport conditions
The KN-2 product is stored in its original hermetically sealed packaging. A warehouse is used for storage. It is recommended to keep the putty away from food. You must use the glue before the expiry date, that is to say within 6 to 12 months from the date of manufacture. The adhesive is transported in a closed vehicle suitable for transporting goods.
Advantages and disadvantages
Product advantages:
- reliable adhesion to various surfaces;
- easy and fast application;
- impermeability;
- elasticity;
- application versatility.
Defaults:
- rubber glue is used for interior work;
- during repairs, drafts, humidity, direct sunlight are not allowed.
Additional tips and tricks
KN-2 rubber sealant is produced in the form of a ready-to-use dark mass. The surface on which the glue is applied is first thoroughly cleaned of dirt and leveled. True, minor flaws cannot be eliminated. The elastic mass will penetrate into all the crevices and level the base on its own. To save glue, it is better to treat the surface with a primer before applying the substance.
After the primer mixture has dried, at least 12 hours should elapse before the adhesive is applied to the substrate or used for bonding materials.
This adhesive is based on a high rubber content. Thanks to this feature, KN-2 can be used for gluing rubber products. Usually, this putty is used to securely attach linoleum or rubber-based carpet to the floor. You should always remember that KN-2 glue contains a solvent. It is advisable to wait 15 minutes after applying the mass to the surface. During this time, the toxic vapors of the solvent will have time to evaporate. After application to the surface, the glue hardens after 7 hours. True, in order for the mass to dry completely, you need to wait 24-72 hours.
A rubber-based product of the KN-2 brand is used both for bonding materials and for waterproofing. Once hardened, this substance becomes rubbery. The adhesive can be used as cushioning material.
All cracks and places where the adhesive enters are protected from moisture penetration. Viscous mass penetrates into all pores. After drying, it hardens and does not change its properties either under the influence of moisture or as a result of a sharp increase or decrease in temperature.
It is a universal product for bonding various materials and protecting premises from water penetration. Putty can be used at any stage of construction and repair work. The toxic substances evaporate a few hours after the application of KN-2. True, this glue is undesirable to use in the kitchen or for gluing kitchen items.