Properties and characteristics of the electrical insulating varnish ml-92

Varnish that insulates electrically The electrical industry relies heavily on ML-92 because of its exceptional insulating qualities. The purpose of this varnish is to give electrical components a protective layer that will prolong and ensure their safety. It is extensively utilized in the production and upkeep of transformers, motors, and other electrical equipment that needs sturdy insulation.

The exceptional resistance of ML-92 to high temperatures is one of its most notable qualities. Electrical components are frequently used in high-temperature environments, so the varnish must keep its insulating qualities without deteriorating. Because of its superior performance in this area, ML-92 is the recommended option for applications involving high thermal stress.

Better electrical insulation is another feature that ML-92 offers in addition to heat resistance. This quality is essential for guarding against electrical malfunctions and guaranteeing that machinery runs smoothly. By creating a strong barrier against electrical currents, the varnish greatly lowers the possibility of short circuits and other electrical problems.

The longevity of ML-92 is yet another important advantage. A durable, long-lasting coating that is resistant to mechanical wear and tear is provided by the varnish. For parts that are handled or moved around a lot, this durability is crucial because it keeps the insulation’s integrity over time.

Furthermore, ML-92 is renowned for having superior adhesion qualities. It forms a stable and even layer of insulation by sticking well to a range of surfaces. Because of its adaptability, it can be used on a variety of electrical components, ranging from massive industrial motors to tiny circuit boards.

As a high-performance material, ML-92 electrical insulating varnish is essential to the dependability and effectiveness of electrical equipment. For engineers and technicians working in the electrical industry, its unique blend of thermal resistance, electrical insulation, durability, and adhesion makes it a vital tool.

Property Description
Color Typically clear or slightly yellow
Viscosity Medium, easy to apply
Drying Time Quick, usually within a few hours
Heat Resistance Can withstand high temperatures
Electrical Insulation Excellent insulating properties
Adhesion Strong bonding to surfaces
Durability Long-lasting protection
Application Method Brush or spray
Uses Coating electrical components

An essential component for both protecting and improving the performance of electrical components is electrical insulating varnish ML-92. With its strong adhesion, high thermal resistance, and excellent insulating qualities, it is perfect for use in electrical motors, transformers, and other high-voltage equipment. Its strong chemical makeup guarantees dependability and durability under a range of operating conditions, extending the life of electrical equipment. By choosing the appropriate varnish for a given application, one can ensure the efficiency and safety of electrical systems by being aware of these properties.

The purpose and properties of varnish

The manufacturing process for electro-insulating varnish ml-92 adheres to the state standard GOST 15865-70. The product consists of glyftal varnish combined with organic solvents and melaminomaldehyd resin K-421-2.

This paint material’s purpose is to serve as a medium through which electrical voltage can act. maintains its properties in the face of current and surface discharges, and it can withstand extreme heat without losing any of them. The lower limit of the use range for the heating resistance class is minus 60 degrees, and you can operate up to +130 degrees. goods with varnished windings are utilized:

  • in temperate and tropical climate;
  • inside buildings, structures;
  • under the canopies;
  • in rooms with penetration of street air.

The winding of electrical machinery, transformers, and individual parts—including those found in automobiles—that need electrical insulation are most frequently coated. ML-92 offers numerous benefits.

  • good safety of products in an aggressive environment – under the influence of acids, alkalis, salts, gases;
  • oil resistance, strength, durability;
  • Thermoplasticity of impregnation.

The characteristics of the product

The above state standard governs the product’s technical specifications. These are the principal ones:

  • The structure and type of film is homogeneous, without extraneous inclusions, even, without craters, glossy;
  • The film drying period is 1 hour at +105 – 110 degrees in the thin layer, if the layer of material is thick, the time at the same temperature increases to 16 hours;
  • Material consumption per layer – 40 – 48 g/sq. m of the surface;
  • The thickness of the layer of the product is 20 – 30 microns;
  • Conditional viscosity measured by the device Viscimeter Z-246 with a nozzle of 4 mm at a temperature of +20 degrees-25-50 s;
  • The share of dry (non -volatile) residue is 50 – 55 %;
  • thermo -elasticity at a temperature of +150 degrees – 48;
  • Electric strength at +20 degrees – 70 mV/m, at +130 degrees – 40 mV/m, under the influence of water during the day at +20 degrees – 30 mV/m;
  • firmness for the appliance of the pendulum type at +20 degrees – 0.4 U. e.;
  • Specific coating resistance at +20 degrees – 1*10*12 ohms/m, at +130 degrees – 1*10*9 Ohms/m.

A brown film that transitions from a dark to a light shade forms at the application site after drying.

The use of varnish

Prepare the surface before applying the product. In order to accomplish this, it is cleared of debris, dust, and oil and other fat stains. The surface needs to be totally dry. Prior to use, the varnish needs to be thoroughly mixed; if needed, it can be diluted to achieve the required viscosity. You can use white vinegar, toluene, xylol, or a mixture of them in a 3:1 ratio as solvents. Priming the material is optional before using it.

The instrument is used by beating or dipping (important for minute details). Varnish should be applied in one to two layers, depending on the situation. Apply one layer at a time and let it completely dry.

Hot drying should be done for an hour at +105–+110 degrees after the standard drying process, which is best done for about 20 minutes at +20–+22 degrees. You can then complete the product’s second layer. Apply a thick layer if needed, and let it dry at +120 degrees for no more than 16 hours.

Storage and packing

After the date of release, the content can be kept in storage for a full year. The manufacturer warrants full adherence to the technical specifications and parameters during this time. The product is kept out of direct sunlight, away from heat sources, and dampness in a tightly covered dish in the factory to keep it from deteriorating. Like most paints and varnishes, the recommended storage temperature is between -40 and +40 degrees. The instrument is packaged in industrial containers based on the buyer’s specifications.

Varnish that insulates electrically In the fields of electrical engineering and manufacturing, ML-92 is an essential material. Its main function is to insulate electrical components so that they can operate safely and effectively. Because of its high dielectric strength, this varnish is well-known for its ability to successfully stop electrical currents from leaking, safeguarding the integrity of electrical systems.

The exceptional heat resistance of ML-92 varnish is one of its most notable features. Because it is resistant to degradation even at high temperatures, it is perfect for use in situations where electrical components are subjected to high heat. This characteristic makes sure that electrical systems are steady and dependable over time, even in high-stress situations.

Furthermore, ML-92 varnish provides excellent resistance to chemicals and moisture. Because of this, it can be used in a variety of settings, such as those with high humidity or exposure to harsh materials. Because of its protective properties, electrical components last longer, requiring less maintenance and having greater overall durability.

Another advantage of ML-92 varnish is its ease of application. Applying it in different ways—like dipping, brushing, or spraying—allows for flexibility based on the particular needs of the project. After application, it creates a uniform, smooth coating that sticks firmly to the surface and offers reliable insulation.

To sum up, the ML-92 electrical insulating varnish is a crucial substance that guarantees the longevity and safety of electrical parts. Its high dielectric strength, resilience to heat, and defense against chemicals and moisture make it a dependable option for a variety of uses. Manufacturers and engineers can improve the longevity and performance of their electrical systems by selecting ML-92 varnish.

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